DR. LINDA CHEN DO
Prescription History 1093974792
Family Medicine in Oak Park, IL
What does Dr. Chen prescribe?
In 2024, Dr. Chen wrote 3,284 Medicare prescriptions for 83 medications. The most prescribed was Atorvastatin Calcium, with 317 prescriptions for 102 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. Chen prescribes.
Medications 83 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 Illinois 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 Illinois prescribers
Dr. Chen wrote 317 prescriptions for Atorvastatin Calcium, about 1.5 times as often as the typical Illinois prescriber of it (208). Medicare paid $10.17 per fill, versus $9.37 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chen wrote 271 prescriptions for Amlodipine Besylate, about 1.9 times as often as the typical Illinois prescriber of it (146). Medicare paid $6.03 per fill, versus $6.68 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 Illinois prescribers
Dr. Chen wrote 131 prescriptions for Losartan Potassium, about as often as the typical Illinois prescriber of it (115). Medicare paid $8.94 per fill, versus $9.41 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 Illinois prescribers
Dr. Chen wrote 118 prescriptions for Hydrochlorothiazide, about 1.6 times as often as the typical Illinois prescriber of it (76). Medicare paid $2.97 per fill, versus $4.15 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Illinois prescribers
Dr. Chen wrote 113 prescriptions for Levothyroxine Sodium, about 72% as often as the typical Illinois prescriber of it (156). Medicare paid $11.01 per fill, versus $10.46 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 Illinois prescribers
Dr. Chen wrote 95 prescriptions for Metoprolol Succinate, about 76% as often as the typical Illinois prescriber of it (125). Medicare paid $15.53 per fill, versus $14.27 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 Illinois prescribers
Dr. Chen wrote 93 prescriptions for Rosuvastatin Calcium, about 89% as often as the typical Illinois prescriber of it (105). Medicare paid $17.63 per fill, versus $13.25 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Illinois prescribers
Dr. Chen wrote 91 prescriptions for Metformin Hcl, about 89% as often as the typical Illinois prescriber of it (102). Medicare paid $6.07 per fill, versus $7.31 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 Illinois prescribers
Dr. Chen wrote 90 prescriptions for Lisinopril, about 75% as often as the typical Illinois prescriber of it (120). Medicare paid $9.39 per fill, versus $7.00 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 Illinois prescribers
Dr. Chen wrote 78 prescriptions for Gabapentin, about 90% as often as the typical Illinois prescriber of it (87). Medicare paid $13.22 per fill, versus $15.83 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
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Illinois prescribers
Dr. Chen wrote 67 prescriptions for Escitalopram Oxalate, about as often as the typical Illinois prescriber of it (60). Medicare paid $20.67 per fill, versus $12.18 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Illinois prescribers
Dr. Chen wrote 61 prescriptions for Omeprazole, about 63% as often as the typical Illinois prescriber of it (96). Medicare paid $10.77 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
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 Illinois prescribers
Dr. Chen wrote 54 prescriptions for Albuterol Sulfate Hfa, about 88% as often as the typical Illinois prescriber of it (61). Medicare paid $39.52 per fill, versus $31.97 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 Illinois prescribers
Dr. Chen wrote 51 prescriptions for Trazodone Hcl, about 81% as often as the typical Illinois prescriber of it (63). Medicare paid $8.98 per fill, versus $8.47 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 Illinois prescribers
Dr. Chen wrote 50 prescriptions for Alendronate Sodium, about as often as the typical Illinois prescriber of it (49). Medicare paid $7.50 per fill, versus $8.38 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 Illinois prescribers
Dr. Chen wrote 49 prescriptions for Tizanidine Hcl, about 1.3 times as often as the typical Illinois prescriber of it (39). Medicare paid $5.84 per fill, versus $9.75 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
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Illinois prescribers
Dr. Chen wrote 47 prescriptions for Glimepiride, about as often as the typical Illinois prescriber of it (43). Medicare paid $9.44 per fill, versus $8.63 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 certain mental/mood disorders (such as depression, anxiety).
Compared with Illinois prescribers
Dr. Chen wrote 46 prescriptions for Duloxetine Hcl, about 87% as often as the typical Illinois prescriber of it (53). Medicare paid $21.37 per fill, versus $21.99 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 Illinois prescribers
Dr. Chen wrote 45 prescriptions for Fluticasone Propionate, about as often as the typical Illinois prescriber of it (49). Medicare paid $14.59 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 combination medication is used to relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Chen wrote 45 prescriptions for Hydrocodone-Acetaminophen, about 64% as often as the typical Illinois prescriber of it (71). Medicare paid $8.78 per fill, versus $20.03 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 certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Illinois prescribers
Dr. Chen wrote 45 prescriptions for Sertraline Hcl, about 66% as often as the typical Illinois prescriber of it (69). Medicare paid $11.22 per fill, versus $8.82 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 Illinois prescribers
Dr. Chen wrote 43 prescriptions for Clonazepam, about 89% as often as the typical Illinois prescriber of it (48). Medicare paid $5.06 per fill, versus $7.29 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Illinois prescribers
Dr. Chen wrote 41 prescriptions for Montelukast Sodium, about 70% as often as the typical Illinois prescriber of it (59). Medicare paid $13.33 per fill, versus $10.66 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
Carvedilol is used to treat high blood pressure and heart failure.
Compared with Illinois prescribers
Dr. Chen wrote 39 prescriptions for Carvedilol, about half as often as the typical Illinois prescriber of it (70). Medicare paid $9.17 per fill, versus $8.63 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
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 Illinois prescribers
Dr. Chen wrote 39 prescriptions for Furosemide, about half as often as the typical Illinois prescriber of it (90). Medicare paid $6.04 per fill, versus $5.20 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 Illinois prescribers
Dr. Chen wrote 38 prescriptions for Tramadol Hcl, about 67% as often as the typical Illinois prescriber of it (57). Medicare paid $7.31 per fill, versus $5.65 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Illinois prescribers
Dr. Chen wrote 36 prescriptions for Pantoprazole Sodium, about half as often as the typical Illinois prescriber of it (83). Medicare paid $16.79 per fill, versus $12.56 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
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with Illinois prescribers
Dr. Chen wrote 35 prescriptions for Amoxicillin-Clavulanate Potass, about 1.4 times as often as the typical Illinois prescriber of it (26). Medicare paid $7.10 per fill, versus $8.39 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
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 Illinois prescribers
Dr. Chen wrote 34 prescriptions for Prednisone, about 74% as often as the typical Illinois prescriber of it (46). Medicare paid $2.96 per fill, versus $3.88 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Illinois prescribers
Dr. Chen wrote 34 prescriptions for Tamsulosin Hcl, about 36% as often as the typical Illinois prescriber of it (94). Medicare paid $20.73 per fill, versus $14.59 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 prevent and decrease symptoms (wheezing and trouble breathing) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, including chronic bronchitis and emphysema).
Compared with Illinois prescribers
Dr. Chen wrote 33 prescriptions for Breo Ellipta, about as often as the typical Illinois prescriber of it (34). Medicare paid $390.09 per fill, versus $513.05 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 a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Illinois prescribers
Dr. Chen wrote 32 prescriptions for Potassium Chloride, about half as often as the typical Illinois prescriber of it (70). Medicare paid $23.07 per fill, versus $20.43 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Illinois prescribers
Dr. Chen wrote 32 prescriptions for Zolpidem Tartrate, about 80% as often as the typical Illinois prescriber of it (40). Medicare paid $7.41 per fill, versus $6.08 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
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 Illinois prescribers
Dr. Chen wrote 30 prescriptions for Pravastatin Sodium, about half as often as the typical Illinois prescriber of it (52). Medicare paid $21.19 per fill, versus $12.95 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
Alprazolam is used to treat anxiety and panic disorders.
Compared with Illinois prescribers
Dr. Chen wrote 29 prescriptions for Alprazolam, about half as often as the typical Illinois prescriber of it (65). Medicare paid $5.08 per fill, versus $6.66 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
Benazepril is used to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 28 prescriptions for Benazepril Hcl, about 1.2 times as often as the typical Illinois prescriber of it (23). Medicare paid $15.92 per fill, versus $9.48 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 Illinois prescribers
Dr. Chen wrote 27 prescriptions for Eliquis, about 29% as often as the typical Illinois prescriber of it (94). Medicare paid $916.74 per fill, versus $848.57 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
Azithromycin is used to treat a wide variety of bacterial infections.
Compared with Illinois prescribers
Dr. Chen wrote 26 prescriptions for Azithromycin, about 77% as often as the typical Illinois prescriber of it (34). Medicare paid $3.39 per fill, versus $5.14 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Illinois prescribers
Dr. Chen wrote 26 prescriptions for Metformin Hcl Er, about half as often as the typical Illinois prescriber of it (55). Medicare paid $4.48 per fill, versus $9.22 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 depression.
Compared with Illinois prescribers
Dr. Chen wrote 24 prescriptions for Bupropion Xl, about 63% as often as the typical Illinois prescriber of it (38). Medicare paid $32.23 per fill, versus $23.87 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 Illinois prescribers
Dr. Chen wrote 24 prescriptions for Lorazepam, about half as often as the typical Illinois prescriber of it (48). Medicare paid $1.84 per fill, versus $6.59 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with Illinois prescribers
Dr. Chen wrote 23 prescriptions for Donepezil Hcl, about 34% as often as the typical Illinois prescriber of it (67). Medicare paid $18.56 per fill, versus $11.52 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
Enalapril is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chen wrote 23 prescriptions for Enalapril Maleate, about 75% as often as the typical Illinois prescriber of it (31). Medicare paid $10.74 per fill, versus $15.68 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 Illinois prescribers
Dr. Chen wrote 23 prescriptions for Simvastatin, about 31% as often as the typical Illinois prescriber of it (75). Medicare paid $14.02 per fill, versus $8.10 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Illinois prescribers
Dr. Chen wrote 22 prescriptions for Jardiance, about 39% as often as the typical Illinois prescriber of it (56). Medicare paid $1,436.57 per fill, versus $1,039.71 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
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 Illinois prescribers
Dr. Chen wrote 21 prescriptions for Famotidine, about 39% as often as the typical Illinois prescriber of it (54). Medicare paid $9.04 per fill, versus $12.03 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
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Illinois prescribers
Dr. Chen wrote 20 prescriptions for Allopurinol, about 36% as often as the typical Illinois prescriber of it (56). Medicare paid $17.25 per fill, versus $9.73 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
Chlorthalidone is used to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 19 prescriptions for Chlorthalidone, about 68% as often as the typical Illinois prescriber of it (28). Medicare paid $22.63 per fill, versus $13.82 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 Illinois prescribers
Dr. Chen wrote 19 prescriptions for Diclofenac Sodium, about half as often as the typical Illinois prescriber of it (36). Medicare paid $15.59 per fill, versus $32.63 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Illinois prescribers
Dr. Chen wrote 19 prescriptions for Diltiazem 24hr Er (Cd), about half as often as the typical Illinois prescriber of it (34). Medicare paid $21.32 per fill, versus $23.27 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 Illinois prescribers
Dr. Chen wrote 19 prescriptions for Lisinopril-Hydrochlorothiazide, about half as often as the typical Illinois prescriber of it (38). Medicare paid $7.25 per fill, versus $7.94 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
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 19 prescriptions for Nifedipine Er, about half as often as the typical Illinois prescriber of it (35). Medicare paid $22.72 per fill, versus $27.87 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with Illinois prescribers
Dr. Chen wrote 19 prescriptions for Valsartan, about half as often as the typical Illinois prescriber of it (33). Medicare paid $62.28 per fill, versus $25.92 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
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 Illinois prescribers
Dr. Chen wrote 18 prescriptions for Fluticasone-Salmeterol, about 71% as often as the typical Illinois prescriber of it (25). Medicare paid $99.35 per fill, versus $156.43 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
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Illinois prescribers
Dr. Chen wrote 18 prescriptions for Glipizide, about half as often as the typical Illinois prescriber of it (41). Medicare paid $4.42 per fill, versus $8.97 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
Lovastatin 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 Illinois prescribers
Dr. Chen wrote 18 prescriptions for Lovastatin, about 62% as often as the typical Illinois prescriber of it (29). Medicare paid $5.49 per fill, versus $8.92 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
Meloxicam is used to treat arthritis.
Compared with Illinois prescribers
Dr. Chen wrote 18 prescriptions for Meloxicam, about 34% as often as the typical Illinois prescriber of it (53). Medicare paid $2.43 per fill, versus $4.12 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
This medication is used to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 18 prescriptions for Telmisartan, about 67% as often as the typical Illinois prescriber of it (27). Medicare paid $2.51 per fill, versus $27.28 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
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with Illinois prescribers
Dr. Chen wrote 17 prescriptions for Nitrofurantoin Mono-Macro, about 66% as often as the typical Illinois prescriber of it (26). Medicare paid $10.96 per fill, versus $14.38 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 Illinois prescribers
Dr. Chen wrote 17 prescriptions for Valacyclovir, about 80% as often as the typical Illinois prescriber of it (21). Medicare paid $30.02 per fill, versus $28.51 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 Illinois prescribers
Dr. Chen wrote 16 prescriptions for Meclizine Hcl, about 64% as often as the typical Illinois prescriber of it (25). Medicare paid $4.50 per fill, versus $8.26 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 Illinois prescribers
Dr. Chen wrote 16 prescriptions for Metoprolol Tartrate, about 22% as often as the typical Illinois prescriber of it (73). Medicare paid $5.14 per fill, versus $7.01 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
Olmesartan is used to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 16 prescriptions for Olmesartan Medoxomil, about half as often as the typical Illinois prescriber of it (32). Medicare paid $16.60 per fill, versus $17.40 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
This is a long-acting form of oxybutynin that is used to treat overactive bladder and urinary conditions.
Compared with Illinois prescribers
Dr. Chen wrote 16 prescriptions for Oxybutynin Chloride Er, about half as often as the typical Illinois prescriber of it (34). Medicare paid $20.43 per fill, versus $22.31 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 Illinois prescribers
Dr. Chen wrote 16 prescriptions for Venlafaxine Hcl Er, about half as often as the typical Illinois prescriber of it (37). Medicare paid $8.02 per fill, versus $17.70 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 Illinois prescribers
Dr. Chen wrote 15 prescriptions for Naproxen, about half as often as the typical Illinois prescriber of it (26). Medicare paid $2.75 per fill, versus $10.65 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
Nebivolol is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chen wrote 15 prescriptions for Nebivolol Hcl, about half as often as the typical Illinois prescriber of it (26). Medicare paid $80.59 per fill, versus $62.40 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
This drug is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chen wrote 15 prescriptions for Triamterene-Hydrochlorothiazid, about half as often as the typical Illinois prescriber of it (31). Medicare paid $9.61 per fill, versus $8.88 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
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Illinois prescribers
Dr. Chen wrote 14 prescriptions for Trulicity, about 37% as often as the typical Illinois prescriber of it (38). Medicare paid $1,048.61 per fill, versus $1,245.08 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 combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with Illinois prescribers
Dr. Chen wrote 13 prescriptions for Dextroamphetamine-Amphetamine, about half as often as the typical Illinois prescriber of it (30). Medicare paid $13.00 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
Fluconazole is used to treat vaginal yeast infections.
Compared with Illinois prescribers
Dr. Chen wrote 13 prescriptions for Fluconazole, about 65% as often as the typical Illinois prescriber of it (20). Medicare paid $3.84 per fill, versus $9.54 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with Illinois prescribers
Dr. Chen wrote 13 prescriptions for Hydralazine Hcl, about 30% as often as the typical Illinois prescriber of it (43). Medicare paid $21.73 per fill, versus $14.12 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
Irbesartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Illinois prescribers
Dr. Chen wrote 13 prescriptions for Irbesartan, about 38% as often as the typical Illinois prescriber of it (34). Medicare paid $21.51 per fill, versus $17.40 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
This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim.
Compared with Illinois prescribers
Dr. Chen wrote 13 prescriptions for Sulfamethoxazole-Trimethoprim, about half as often as the typical Illinois prescriber of it (28). Medicare paid $2.52 per fill, versus $4.46 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 Illinois prescribers
Dr. Chen wrote 12 prescriptions for Amitriptyline Hcl, about half as often as the typical Illinois prescriber of it (27). Medicare paid $9.17 per fill, versus $14.92 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Chen wrote 12 prescriptions for Atenolol, about 34% as often as the typical Illinois prescriber of it (36). Medicare paid $14.09 per fill, versus $6.92 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
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 Illinois prescribers
Dr. Chen wrote 12 prescriptions for Clopidogrel, about 19% as often as the typical Illinois prescriber of it (62). Medicare paid $12.47 per fill, versus $11.09 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 Illinois prescribers
Dr. Chen wrote 12 prescriptions for Tramadol Hcl-Acetaminophen, about 63% as often as the typical Illinois prescriber of it (19). Medicare paid $10.31 per fill, versus $12.50 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 Illinois prescribers
Dr. Chen wrote 11 prescriptions for Cyclobenzaprine Hcl, about 31% as often as the typical Illinois prescriber of it (35). Medicare paid $12.60 per fill, versus $8.56 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
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 Illinois prescribers
Dr. Chen wrote 11 prescriptions for Fenofibrate, about half as often as the typical Illinois prescriber of it (25). Medicare paid $19.28 per fill, versus $25.00 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 Illinois prescribers
Dr. Chen wrote 11 prescriptions for Linzess, about 36% as often as the typical Illinois prescriber of it (31). Medicare paid $705.67 per fill, versus $787.88 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 medication is used to treat an overactive bladder.
Compared with Illinois prescribers
Dr. Chen wrote 11 prescriptions for Tolterodine Tartrate Er, about half as often as the typical Illinois prescriber of it (22). Medicare paid $151.72 per fill, versus $74.04 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
Icosapent ethyl is used along with certain other cholesterol medications ("statins" such as atorvastatin, simvastatin) to reduce the risk of heart attack, stroke, and certain types of heart problems that require treatment in a hospital.
Compared with Illinois prescribers
Dr. Chen wrote 11 prescriptions for Vascepa, about 39% as often as the typical Illinois prescriber of it (28). Medicare paid $638.89 per fill, versus $441.53 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. Chen’s prescriptions
What does Dr. Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed medications were Atorvastatin Calcium (317), Amlodipine Besylate (271) and Losartan Potassium (131).
How does Dr. Chen's prescribing compare with other Illinois prescribers?
Of the 83 medications with a state comparison, Dr. Chen prescribes 5 more often than the typical Illinois prescriber, 19 about as often and 59 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Chen 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 Illinois 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.
