DR. TROY P UNDERBRINK D.O.
Prescription History 1871906339
Family Medicine in Tacoma, WA
What does Dr. Underbrink prescribe?
In 2024, Dr. Underbrink wrote 3,627 Medicare prescriptions for 96 medications. The most prescribed was Atorvastatin Calcium, with 212 prescriptions for 58 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Underbrink prescribes.
Medications 96 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Washington prescribers.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 212 prescriptions for Atorvastatin Calcium, about 1.3 times as often as the typical Washington prescriber of it (166). Medicare paid $11.78 per fill, versus $11.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Washington prescribers
Dr. Underbrink wrote 152 prescriptions for Levothyroxine Sodium, about 1.3 times as often as the typical Washington prescriber of it (116). Medicare paid $10.19 per fill, versus $11.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 152 prescriptions for Lisinopril, about 1.5 times as often as the typical Washington prescriber of it (105). Medicare paid $7.97 per fill, versus $8.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 122 prescriptions for Losartan Potassium, about 1.2 times as often as the typical Washington prescriber of it (102). Medicare paid $10.98 per fill, versus $10.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 115 prescriptions for Amlodipine Besylate, about as often as the typical Washington prescriber of it (106). Medicare paid $7.01 per fill, versus $7.92 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Washington prescribers
Dr. Underbrink wrote 114 prescriptions for Omeprazole, about 1.5 times as often as the typical Washington prescriber of it (78). Medicare paid $11.21 per fill, versus $15.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Washington prescribers
Dr. Underbrink wrote 109 prescriptions for Gabapentin, about 1.5 times as often as the typical Washington prescriber of it (72). Medicare paid $35.45 per fill, versus $19.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Washington prescribers
Dr. Underbrink wrote 103 prescriptions for Trazodone Hcl, about 1.7 times as often as the typical Washington prescriber of it (61). Medicare paid $7.72 per fill, versus $10.78 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Washington prescribers
Dr. Underbrink wrote 88 prescriptions for Metformin Hcl, about 1.4 times as often as the typical Washington prescriber of it (63). Medicare paid $7.90 per fill, versus $9.63 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 87 prescriptions for Hydrochlorothiazide, about 1.5 times as often as the typical Washington prescriber of it (57). Medicare paid $6.48 per fill, versus $5.34 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Washington prescribers
Dr. Underbrink wrote 78 prescriptions for Tamsulosin Hcl, about as often as the typical Washington prescriber of it (70). Medicare paid $15.40 per fill, versus $16.56 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Washington prescribers
Dr. Underbrink wrote 70 prescriptions for Metformin Hcl Er, about 1.4 times as often as the typical Washington prescriber of it (51). Medicare paid $6.44 per fill, versus $10.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 69 prescriptions for Metoprolol Succinate, about 76% as often as the typical Washington prescriber of it (91). Medicare paid $9.89 per fill, versus $14.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 64 prescriptions for Rosuvastatin Calcium, about 79% as often as the typical Washington prescriber of it (81). Medicare paid $8.58 per fill, versus $14.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Washington prescribers
Dr. Underbrink wrote 62 prescriptions for Pantoprazole Sodium, about 1.3 times as often as the typical Washington prescriber of it (49). Medicare paid $8.47 per fill, versus $14.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with Washington prescribers
Dr. Underbrink wrote 59 prescriptions for Hydrocodone-Acetaminophen, about as often as the typical Washington prescriber of it (60). Medicare paid $32.54 per fill, versus $20.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury).
Compared with Washington prescribers
Dr. Underbrink wrote 59 prescriptions for Tizanidine Hcl, about 1.7 times as often as the typical Washington prescriber of it (34). Medicare paid $9.86 per fill, versus $12.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with Washington prescribers
Dr. Underbrink wrote 56 prescriptions for Buspirone Hcl, about 1.7 times as often as the typical Washington prescriber of it (34). Medicare paid $17.79 per fill, versus $17.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 55 prescriptions for Simvastatin, about as often as the typical Washington prescriber of it (52). Medicare paid $11.89 per fill, versus $9.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 53 prescriptions for Fluoxetine Hcl, about 1.6 times as often as the typical Washington prescriber of it (34). Medicare paid $6.36 per fill, versus $12.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Washington prescribers
Dr. Underbrink wrote 52 prescriptions for Albuterol Sulfate Hfa, about as often as the typical Washington prescriber of it (51). Medicare paid $33.55 per fill, versus $29.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with Washington prescribers
Dr. Underbrink wrote 50 prescriptions for Oxycodone Hcl, about as often as the typical Washington prescriber of it (50). Medicare paid $16.67 per fill, versus $14.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Washington prescribers
Dr. Underbrink wrote 49 prescriptions for Duloxetine Hcl, about as often as the typical Washington prescriber of it (44). Medicare paid $46.11 per fill, versus $26.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 48 prescriptions for Potassium Chloride, about as often as the typical Washington prescriber of it (50). Medicare paid $15.67 per fill, versus $21.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 47 prescriptions for Ozempic, about as often as the typical Washington prescriber of it (42). Medicare paid $1,655.43 per fill, versus $1,270.49 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 44 prescriptions for Sertraline Hcl, about 87% as often as the typical Washington prescriber of it (50). Medicare paid $9.41 per fill, versus $11.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Washington prescribers
Dr. Underbrink wrote 42 prescriptions for Furosemide, about 72% as often as the typical Washington prescriber of it (59). Medicare paid $5.47 per fill, versus $6.29 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Washington prescribers
Dr. Underbrink wrote 41 prescriptions for Metoprolol Tartrate, about as often as the typical Washington prescriber of it (43). Medicare paid $6.73 per fill, versus $8.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pravastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 41 prescriptions for Pravastatin Sodium, about as often as the typical Washington prescriber of it (38). Medicare paid $24.43 per fill, versus $14.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Washington prescribers
Dr. Underbrink wrote 39 prescriptions for Montelukast Sodium, about as often as the typical Washington prescriber of it (38). Medicare paid $6.03 per fill, versus $12.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Compared with Washington prescribers
Dr. Underbrink wrote 38 prescriptions for Clopidogrel, about as often as the typical Washington prescriber of it (39). Medicare paid $4.87 per fill, versus $13.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with Washington prescribers
Dr. Underbrink wrote 35 prescriptions for Cyclobenzaprine Hcl, about as often as the typical Washington prescriber of it (30). Medicare paid $6.16 per fill, versus $10.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of skin conditions (such as eczema, dermatitis, allergies, rash).
Compared with Washington prescribers
Dr. Underbrink wrote 35 prescriptions for Triamcinolone Acetonide, about as often as the typical Washington prescriber of it (31). Medicare paid $4.10 per fill, versus $9.90 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This is a long-acting form of oxybutynin that is used to treat overactive bladder and urinary conditions.
Compared with Washington prescribers
Dr. Underbrink wrote 34 prescriptions for Oxybutynin Chloride Er, about 1.2 times as often as the typical Washington prescriber of it (27). Medicare paid $11.93 per fill, versus $21.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with Washington prescribers
Dr. Underbrink wrote 33 prescriptions for Alendronate Sodium, about 79% as often as the typical Washington prescriber of it (42). Medicare paid $15.00 per fill, versus $10.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 33 prescriptions for Farxiga, about as often as the typical Washington prescriber of it (32). Medicare paid $920.92 per fill, versus $981.58 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to help relieve moderate to severe pain.
Compared with Washington prescribers
Dr. Underbrink wrote 31 prescriptions for Oxycodone-Acetaminophen, about 76% as often as the typical Washington prescriber of it (41). Medicare paid $22.30 per fill, versus $25.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 30 prescriptions for Jardiance, about 68% as often as the typical Washington prescriber of it (44). Medicare paid $1,203.30 per fill, versus $1,041.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with Washington prescribers
Dr. Underbrink wrote 30 prescriptions for Pregabalin, about 85% as often as the typical Washington prescriber of it (35). Medicare paid $24.64 per fill, versus $26.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Washington prescribers
Dr. Underbrink wrote 29 prescriptions for Bupropion Xl, about 86% as often as the typical Washington prescriber of it (34). Medicare paid $28.27 per fill, versus $27.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (wheezing and shortness of breath) caused by asthma or ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Washington prescribers
Dr. Underbrink wrote 29 prescriptions for Fluticasone-Salmeterol, about as often as the typical Washington prescriber of it (27). Medicare paid $195.52 per fill, versus $156.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 27 prescriptions for Glipizide Er, about as often as the typical Washington prescriber of it (29). Medicare paid $9.82 per fill, versus $14.57 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meloxicam is used to treat arthritis.
Compared with Washington prescribers
Dr. Underbrink wrote 27 prescriptions for Meloxicam, about 77% as often as the typical Washington prescriber of it (35). Medicare paid $6.32 per fill, versus $5.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 26 prescriptions for Lisinopril-Hydrochlorothiazide, about as often as the typical Washington prescriber of it (27). Medicare paid $22.32 per fill, versus $10.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with Washington prescribers
Dr. Underbrink wrote 25 prescriptions for Fluticasone Propionate, about 71% as often as the typical Washington prescriber of it (35). Medicare paid $26.08 per fill, versus $18.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with Washington prescribers
Dr. Underbrink wrote 24 prescriptions for Clonazepam, about 69% as often as the typical Washington prescriber of it (35). Medicare paid $8.98 per fill, versus $9.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methocarbamol is used to treat muscle spasms/pain.
Compared with Washington prescribers
Dr. Underbrink wrote 24 prescriptions for Methocarbamol, about as often as the typical Washington prescriber of it (27). Medicare paid $49.46 per fill, versus $14.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Washington prescribers
Dr. Underbrink wrote 23 prescriptions for Citalopram Hbr, about 66% as often as the typical Washington prescriber of it (35). Medicare paid $6.01 per fill, versus $9.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 23 prescriptions for Venlafaxine Hcl Er, about 78% as often as the typical Washington prescriber of it (29). Medicare paid $1.83 per fill, versus $24.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Chlorthalidone is used to treat high blood pressure (hypertension).
Compared with Washington prescribers
Dr. Underbrink wrote 22 prescriptions for Chlorthalidone, about 87% as often as the typical Washington prescriber of it (25). Medicare paid $12.07 per fill, versus $17.83 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 22 prescriptions for Lantus Solostar, about 65% as often as the typical Washington prescriber of it (34). Medicare paid $65.34 per fill, versus $136.88 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Allopurinol, about half as often as the typical Washington prescriber of it (39). Medicare paid $15.60 per fill, versus $11.44 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alprazolam is used to treat anxiety and panic disorders.
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Alprazolam, about 62% as often as the typical Washington prescriber of it (34). Medicare paid $1.08 per fill, versus $4.76 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lamotrigine is used alone or with other medications to prevent and control seizures.
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Lamotrigine, about half as often as the typical Washington prescriber of it (41). Medicare paid $29.10 per fill, versus $17.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Nitrofurantoin Mono-Macro, about as often as the typical Washington prescriber of it (22). Medicare paid $51.67 per fill, versus $17.76 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Trulicity, about 72% as often as the typical Washington prescriber of it (29). Medicare paid $1,593.95 per fill, versus $1,264.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Washington prescribers
Dr. Underbrink wrote 21 prescriptions for Zolpidem Tartrate, about 62% as often as the typical Washington prescriber of it (34). Medicare paid $12.62 per fill, versus $7.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levetiracetam is used to treat seizures (epilepsy).
Compared with Washington prescribers
Dr. Underbrink wrote 20 prescriptions for Levetiracetam, about half as often as the typical Washington prescriber of it (44). Medicare paid $23.12 per fill, versus $33.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 20 prescriptions for Losartan-Hydrochlorothiazide, about 72% as often as the typical Washington prescriber of it (28). Medicare paid $6.97 per fill, versus $13.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a hormone.
Compared with Washington prescribers
Dr. Underbrink wrote 19 prescriptions for Estradiol, about 61% as often as the typical Washington prescriber of it (31). Medicare paid $14.65 per fill, versus $64.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with Washington prescribers
Dr. Underbrink wrote 19 prescriptions for Finasteride, about half as often as the typical Washington prescriber of it (43). Medicare paid $19.52 per fill, versus $13.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pramipexole is used alone or with other medications to treat Parkinson's disease.
Compared with Washington prescribers
Dr. Underbrink wrote 19 prescriptions for Pramipexole Dihydrochloride, about 82% as often as the typical Washington prescriber of it (23). Medicare paid $12.24 per fill, versus $17.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 19 prescriptions for Quetiapine Fumarate Er, about as often as the typical Washington prescriber of it (21). Medicare paid $45.68 per fill, versus $56.52 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with Washington prescribers
Dr. Underbrink wrote 18 prescriptions for Xarelto, about half as often as the typical Washington prescriber of it (39). Medicare paid $1,657.35 per fill, versus $1,017.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fenofibrate is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 17 prescriptions for Fenofibrate, about 90% as often as the typical Washington prescriber of it (19). Medicare paid $42.46 per fill, versus $27.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Topiramate is used alone or with other medications to prevent and control seizures (epilepsy).
Compared with Washington prescribers
Dr. Underbrink wrote 17 prescriptions for Topiramate, about 62% as often as the typical Washington prescriber of it (28). Medicare paid $2.68 per fill, versus $13.97 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Amitriptyline Hcl, about 72% as often as the typical Washington prescriber of it (22). Medicare paid $17.64 per fill, versus $17.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Diltiazem 24hr Er (Cd), about half as often as the typical Washington prescriber of it (27). Medicare paid $32.76 per fill, versus $29.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fenofibrate is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Fenofibrate, about 75% as often as the typical Washington prescriber of it (21). Medicare paid $23.72 per fill, versus $22.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sumatriptan is used to treat migraines.
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Sumatriptan Succinate, about 77% as often as the typical Washington prescriber of it (21). Medicare paid $16.90 per fill, versus $21.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Tramadol Hcl, about 40% as often as the typical Washington prescriber of it (40). Medicare paid $1.86 per fill, versus $8.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Varenicline is used by adults to help stop smoking.
Compared with Washington prescribers
Dr. Underbrink wrote 16 prescriptions for Varenicline Tartrate, about as often as the typical Washington prescriber of it (17). Medicare paid $300.83 per fill, versus $223.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Washington prescribers
Dr. Underbrink wrote 15 prescriptions for Atenolol, about half as often as the typical Washington prescriber of it (32). Medicare paid $8.86 per fill, versus $8.83 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with Washington prescribers
Dr. Underbrink wrote 15 prescriptions for Valacyclovir, about 75% as often as the typical Washington prescriber of it (20). Medicare paid $24.72 per fill, versus $37.88 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure.
Compared with Washington prescribers
Dr. Underbrink wrote 15 prescriptions for Valsartan-Hydrochlorothiazide, about 71% as often as the typical Washington prescriber of it (21). Medicare paid $12.58 per fill, versus $29.04 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with Washington prescribers
Dr. Underbrink wrote 14 prescriptions for Eliquis, about 21% as often as the typical Washington prescriber of it (67). Medicare paid $1,245.29 per fill, versus $994.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with Washington prescribers
Dr. Underbrink wrote 14 prescriptions for Famotidine, about 36% as often as the typical Washington prescriber of it (39). Medicare paid $28.30 per fill, versus $16.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Washington prescribers
Dr. Underbrink wrote 14 prescriptions for Ondansetron Odt, about half as often as the typical Washington prescriber of it (26). Medicare paid $8.07 per fill, versus $15.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 14 prescriptions for Quetiapine Fumarate, about 28% as often as the typical Washington prescriber of it (49). Medicare paid $15.98 per fill, versus $19.76 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure (hypertension).
Compared with Washington prescribers
Dr. Underbrink wrote 14 prescriptions for Telmisartan, about half as often as the typical Washington prescriber of it (28). Medicare paid $31.26 per fill, versus $27.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Washington prescribers
Dr. Underbrink wrote 13 prescriptions for Escitalopram Oxalate, about 35% as often as the typical Washington prescriber of it (37). Medicare paid $23.18 per fill, versus $13.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lacosamide is used to prevent and control seizures.
Compared with Washington prescribers
Dr. Underbrink wrote 13 prescriptions for Lacosamide, about 28% as often as the typical Washington prescriber of it (47). Medicare paid $37.05 per fill, versus $110.21 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Spironolactone is used to treat high blood pressure and heart failure.
Compared with Washington prescribers
Dr. Underbrink wrote 13 prescriptions for Spironolactone, about 32% as often as the typical Washington prescriber of it (41). Medicare paid $17.91 per fill, versus $9.91 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Acyclovir is used to treat infections caused by certain types of viruses.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Acyclovir, about half as often as the typical Washington prescriber of it (22). Medicare paid $7.26 per fill, versus $15.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Dextroamphetamine-Amphetamine, about half as often as the typical Washington prescriber of it (24). Medicare paid $10.64 per fill, versus $31.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Diclofenac Sodium, about 40% as often as the typical Washington prescriber of it (30). Medicare paid $42.48 per fill, versus $27.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of skin conditions (such as insect bites, poison oak/ivy, eczema, dermatitis, allergies, rash, itching of the outer female genitals, anal itching).
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Hydrocortisone, about half as often as the typical Washington prescriber of it (28). Medicare paid $19.95 per fill, versus $19.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Naproxen, about half as often as the typical Washington prescriber of it (21). Medicare paid $13.47 per fill, versus $14.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, anxiety disorders, post-traumatic stress disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Paroxetine Hcl, about half as often as the typical Washington prescriber of it (21). Medicare paid $14.87 per fill, versus $16.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Prednisone, about 32% as often as the typical Washington prescriber of it (38). Medicare paid $2.55 per fill, versus $5.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Washington prescribers
Dr. Underbrink wrote 12 prescriptions for Zolpidem Tartrate Er, about 81% as often as the typical Washington prescriber of it (15). Medicare paid $26.35 per fill, versus $30.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Baclofen is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury/disease).
Compared with Washington prescribers
Dr. Underbrink wrote 11 prescriptions for Baclofen, about 34% as often as the typical Washington prescriber of it (32). Medicare paid $24.49 per fill, versus $21.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Washington prescribers
Dr. Underbrink wrote 11 prescriptions for Ezetimibe, about 27% as often as the typical Washington prescriber of it (40). Medicare paid $7.38 per fill, versus $22.63 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meclizine is an antihistamine that is used to prevent and treat nausea, vomiting, and dizziness caused by motion sickness.
Compared with Washington prescribers
Dr. Underbrink wrote 11 prescriptions for Meclizine Hcl, about half as often as the typical Washington prescriber of it (20). Medicare paid $3.88 per fill, versus $11.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to relieve chest pain (angina) in people that have a certain heart condition (coronary artery disease).
Compared with Washington prescribers
Dr. Underbrink wrote 11 prescriptions for Nitroglycerin, about 37% as often as the typical Washington prescriber of it (30). Medicare paid $21.85 per fill, versus $13.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder).
Compared with Washington prescribers
Dr. Underbrink wrote 11 prescriptions for Olanzapine, about 24% as often as the typical Washington prescriber of it (47). Medicare paid $31.01 per fill, versus $23.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Underbrink’s prescriptions
What does Dr. Underbrink prescribe most?
In 2024 Medicare Part D data, Dr. Underbrink's most prescribed medications were Atorvastatin Calcium (212), Levothyroxine Sodium (152) and Lisinopril (152).
How does Dr. Underbrink's prescribing compare with other Washington prescribers?
Of the 96 medications with a state comparison, Dr. Underbrink prescribes 13 more often than the typical Washington prescriber, 39 about as often and 44 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Underbrink prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Washington prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
