DR. CHRISTINE SHIH MD
Prescription History 1619925021
Family Medicine in Bolingbrook, IL
What does Dr. Shih prescribe?
In 2024, Dr. Shih wrote 4,961 Medicare prescriptions for 95 medications. The most prescribed was Atorvastatin Calcium, with 380 prescriptions for 128 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. Shih prescribes.
Medications 95 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. Shih wrote 380 prescriptions for Atorvastatin Calcium, about 1.8 times as often as the typical Illinois prescriber of it (208). Medicare paid $6.74 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Illinois prescribers
Dr. Shih wrote 314 prescriptions for Levothyroxine Sodium, about 2 times as often as the typical Illinois prescriber of it (156). Medicare paid $8.43 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 297 prescriptions for Amlodipine Besylate, about 2 times as often as the typical Illinois prescriber of it (146). Medicare paid $6.46 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
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. Shih wrote 282 prescriptions for Simvastatin, about 3.8 times as often as the typical Illinois prescriber of it (75). Medicare paid $6.29 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
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. Shih wrote 217 prescriptions for Losartan Potassium, about 1.9 times as often as the typical Illinois prescriber of it (115). Medicare paid $10.35 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. Shih wrote 206 prescriptions for Hydrochlorothiazide, about 2.7 times as often as the typical Illinois prescriber of it (76). Medicare paid $3.09 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
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. Shih wrote 196 prescriptions for Metformin Hcl, about 1.9 times as often as the typical Illinois prescriber of it (102). Medicare paid $6.88 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. Shih wrote 168 prescriptions for Lisinopril, about 1.4 times as often as the typical Illinois prescriber of it (120). Medicare paid $7.12 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
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 130 prescriptions for Metoprolol Succinate, about as often as the typical Illinois prescriber of it (125). Medicare paid $12.85 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Illinois prescribers
Dr. Shih wrote 103 prescriptions for Pantoprazole Sodium, about 1.2 times as often as the typical Illinois prescriber of it (83). Medicare paid $11.23 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
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. Shih wrote 100 prescriptions for Metformin Hcl Er, about 1.8 times as often as the typical Illinois prescriber of it (55). Medicare paid $7.47 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Illinois prescribers
Dr. Shih wrote 100 prescriptions for Omeprazole, about as often as the typical Illinois prescriber of it (96). Medicare paid $15.81 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
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with Illinois prescribers
Dr. Shih wrote 92 prescriptions for Alendronate Sodium, about 1.9 times as often as the typical Illinois prescriber of it (49). Medicare paid $6.52 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
Alprazolam is used to treat anxiety and panic disorders.
Compared with Illinois prescribers
Dr. Shih wrote 84 prescriptions for Alprazolam, about 1.3 times as often as the typical Illinois prescriber of it (65). Medicare paid $2.43 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 83 prescriptions for Metoprolol Tartrate, about as often as the typical Illinois prescriber of it (73). Medicare paid $5.64 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
This medication is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 76 prescriptions for Lisinopril-Hydrochlorothiazide, about 2 times as often as the typical Illinois prescriber of it (38). Medicare paid $8.56 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
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Illinois prescribers
Dr. Shih wrote 75 prescriptions for Potassium Chloride, about as often as the typical Illinois prescriber of it (70). Medicare paid $12.09 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
Benazepril is used to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 67 prescriptions for Benazepril Hcl, about 2.9 times as often as the typical Illinois prescriber of it (23). Medicare paid $11.27 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
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. Shih wrote 66 prescriptions for Jardiance, about 1.2 times as often as the typical Illinois prescriber of it (56). Medicare paid $1,232.56 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Illinois prescribers
Dr. Shih wrote 63 prescriptions for Gabapentin, about 73% as often as the typical Illinois prescriber of it (87). Medicare paid $20.92 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
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. Shih wrote 62 prescriptions for Albuterol Sulfate Hfa, about as often as the typical Illinois prescriber of it (61). Medicare paid $24.07 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
Tirzepatide 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. Shih wrote 57 prescriptions for Mounjaro, about 1.4 times as often as the typical Illinois prescriber of it (42). Medicare paid $1,265.84 per fill, versus $1,243.48 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
Semaglutide 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. Shih wrote 57 prescriptions for Ozempic, about as often as the typical Illinois prescriber of it (55). Medicare paid $1,753.05 per fill, versus $1,303.69 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. Shih wrote 54 prescriptions for Furosemide, about 60% as often as the typical Illinois prescriber of it (90). Medicare paid $3.05 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
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Illinois prescribers
Dr. Shih wrote 53 prescriptions for Escitalopram Oxalate, about 88% as often as the typical Illinois prescriber of it (60). Medicare paid $7.16 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
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Illinois prescribers
Dr. Shih wrote 52 prescriptions for Allopurinol, about as often as the typical Illinois prescriber of it (56). Medicare paid $8.62 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Illinois prescribers
Dr. Shih wrote 51 prescriptions for Zolpidem Tartrate, about 1.3 times as often as the typical Illinois prescriber of it (40). Medicare paid $3.93 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
This product is a combination of two drugs: a calcium channel blocker (amlodipine) and an ACE inhibitor (benazepril).
Compared with Illinois prescribers
Dr. Shih wrote 49 prescriptions for Amlodipine Besylate-Benazepril, about 1.9 times as often as the typical Illinois prescriber of it (26). Medicare paid $7.87 per fill, versus $14.96 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. Shih wrote 49 prescriptions for Glimepiride, about as often as the typical Illinois prescriber of it (43). Medicare paid $9.20 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
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. Shih wrote 49 prescriptions for Lovastatin, about 1.7 times as often as the typical Illinois prescriber of it (29). Medicare paid $10.12 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Illinois prescribers
Dr. Shih wrote 46 prescriptions for Tamsulosin Hcl, about half as often as the typical Illinois prescriber of it (94). Medicare paid $6.39 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
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Illinois prescribers
Dr. Shih wrote 42 prescriptions for Lantus Solostar, about as often as the typical Illinois prescriber of it (43). Medicare paid $162.58 per fill, versus $130.05 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
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. Shih wrote 41 prescriptions for Eliquis, about half as often as the typical Illinois prescriber of it (94). Medicare paid $1,341.96 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Illinois prescribers
Dr. Shih wrote 39 prescriptions for Ezetimibe, about 77% as often as the typical Illinois prescriber of it (50). Medicare paid $17.81 per fill, versus $23.83 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 drug is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 39 prescriptions for Losartan-Hydrochlorothiazide, about as often as the typical Illinois prescriber of it (34). Medicare paid $6.51 per fill, versus $12.48 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
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. Shih wrote 39 prescriptions for Rosuvastatin Calcium, about 37% as often as the typical Illinois prescriber of it (105). Medicare paid $5.09 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
This medication is used to treat depression.
Compared with Illinois prescribers
Dr. Shih wrote 36 prescriptions for Trazodone Hcl, about half as often as the typical Illinois prescriber of it (63). Medicare paid $7.42 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
This combination medication is used to relieve moderate to severe pain.
Compared with Illinois prescribers
Dr. Shih wrote 33 prescriptions for Hydrocodone-Acetaminophen, about half as often as the typical Illinois prescriber of it (71). Medicare paid $4.35 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
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Illinois prescribers
Dr. Shih wrote 32 prescriptions for Januvia, about as often as the typical Illinois prescriber of it (35). Medicare paid $1,262.33 per fill, versus $913.62 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 drug is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 32 prescriptions for Triamterene-Hydrochlorothiazid, about as often as the typical Illinois prescriber of it (31). Medicare paid $11.82 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Illinois prescribers
Dr. Shih wrote 31 prescriptions for Montelukast Sodium, about half as often as the typical Illinois prescriber of it (59). Medicare paid $6.63 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
This medication is used alone or with other medications to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 29 prescriptions for Clonidine Hcl, about as often as the typical Illinois prescriber of it (28). Medicare paid $11.32 per fill, versus $6.93 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
Meloxicam is used to treat arthritis.
Compared with Illinois prescribers
Dr. Shih wrote 29 prescriptions for Meloxicam, about half as often as the typical Illinois prescriber of it (53). Medicare paid $6.47 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 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. Shih wrote 28 prescriptions for Breo Ellipta, about 82% as often as the typical Illinois prescriber of it (34). Medicare paid $430.10 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 used to treat a variety of skin conditions (such as eczema, dermatitis, allergies, rash).
Compared with Illinois prescribers
Dr. Shih wrote 28 prescriptions for Triamcinolone Acetonide, about 76% as often as the typical Illinois prescriber of it (37). Medicare paid $4.87 per fill, versus $9.36 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. Shih wrote 28 prescriptions for Venlafaxine Hcl Er, about 77% as often as the typical Illinois prescriber of it (37). Medicare paid $17.64 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
Enalapril is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 24 prescriptions for Enalapril Maleate, about 78% as often as the typical Illinois prescriber of it (31). Medicare paid $12.48 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
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 Illinois prescribers
Dr. Shih wrote 24 prescriptions for Paroxetine Hcl, about 86% as often as the typical Illinois prescriber of it (28). Medicare paid $7.79 per fill, versus $11.98 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. Shih wrote 23 prescriptions for Carvedilol, about 33% as often as the typical Illinois prescriber of it (70). Medicare paid $6.79 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, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Illinois prescribers
Dr. Shih wrote 23 prescriptions for Sertraline Hcl, about 33% as often as the typical Illinois prescriber of it (69). Medicare paid $2.78 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
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. Shih wrote 22 prescriptions for Fluticasone Propionate, about half as often as the typical Illinois prescriber of it (49). Medicare paid $11.91 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 treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 21 prescriptions for Bisoprolol-Hydrochlorothiazide, about as often as the typical Illinois prescriber of it (23). Medicare paid $47.10 per fill, versus $23.98 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. Shih wrote 21 prescriptions for Hydralazine Hcl, about half as often as the typical Illinois prescriber of it (43). Medicare paid $17.95 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
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with Illinois prescribers
Dr. Shih wrote 20 prescriptions for Celecoxib, about half as often as the typical Illinois prescriber of it (38). Medicare paid $13.27 per fill, versus $29.14 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
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. Shih wrote 20 prescriptions for Pravastatin Sodium, about 38% as often as the typical Illinois prescriber of it (52). Medicare paid $21.06 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
Verapamil is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 20 prescriptions for Verapamil Er, about as often as the typical Illinois prescriber of it (19). Medicare paid $43.83 per fill, versus $26.39 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
Insulin degludec is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Illinois prescribers
Dr. Shih wrote 19 prescriptions for Tresiba Flextouch U-100, about 62% as often as the typical Illinois prescriber of it (31). Medicare paid $468.85 per fill, versus $667.23 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. Shih wrote 18 prescriptions for Irbesartan, about half as often as the typical Illinois prescriber of it (34). Medicare paid $16.70 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
Ketoconazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and certain kinds of dandruff.
Compared with Illinois prescribers
Dr. Shih wrote 18 prescriptions for Ketoconazole, about 35% as often as the typical Illinois prescriber of it (51). Medicare paid $11.33 per fill, versus $18.92 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 medication is used to treat anxiety.
Compared with Illinois prescribers
Dr. Shih wrote 18 prescriptions for Lorazepam, about 37% as often as the typical Illinois prescriber of it (48). Medicare paid $3.05 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
Meclizine is an antihistamine that is used to prevent and treat nausea, vomiting, and dizziness caused by motion sickness.
Compared with Illinois prescribers
Dr. Shih wrote 18 prescriptions for Meclizine Hcl, about 72% as often as the typical Illinois prescriber of it (25). Medicare paid $5.38 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
This is a long-acting form of oxybutynin that is used to treat overactive bladder and urinary conditions.
Compared with Illinois prescribers
Dr. Shih wrote 18 prescriptions for Oxybutynin Chloride Er, about half as often as the typical Illinois prescriber of it (34). Medicare paid $25.40 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 17 prescriptions for Atenolol, about half as often as the typical Illinois prescriber of it (36). Medicare paid $9.39 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Illinois prescribers
Dr. Shih wrote 17 prescriptions for Diltiazem 24hr Er (Cd), about half as often as the typical Illinois prescriber of it (34). Medicare paid $18.48 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
See also Warning section.
Compared with Illinois prescribers
Dr. Shih wrote 17 prescriptions for Tramadol Hcl, about 30% as often as the typical Illinois prescriber of it (57). Medicare paid $3.10 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
This medication is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Illinois prescribers
Dr. Shih wrote 17 prescriptions for Warfarin Sodium, about 33% as often as the typical Illinois prescriber of it (51). Medicare paid $7.43 per fill, versus $8.49 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
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. Shih wrote 16 prescriptions for Fenofibrate, about 65% as often as the typical Illinois prescriber of it (25). Medicare paid $32.71 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
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with Illinois prescribers
Dr. Shih wrote 16 prescriptions for Fluoxetine Hcl, about 39% as often as the typical Illinois prescriber of it (41). Medicare paid $7.58 per fill, versus $11.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Illinois prescribers
Dr. Shih wrote 16 prescriptions for Nano 2nd Gen Pen Needle, about half as often as the typical Illinois prescriber of it (33). Medicare paid $66.61 per fill, versus $102.70 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
Sumatriptan is used to treat migraines.
Compared with Illinois prescribers
Dr. Shih wrote 16 prescriptions for Sumatriptan Succinate, about 71% as often as the typical Illinois prescriber of it (22). Medicare paid $6.13 per fill, versus $16.86 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 wide variety of bacterial infections.
Compared with Illinois prescribers
Dr. Shih wrote 15 prescriptions for Cephalexin, about half as often as the typical Illinois prescriber of it (31). Medicare paid $5.28 per fill, versus $6.85 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
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 15 prescriptions for Nifedipine Er, about half as often as the typical Illinois prescriber of it (35). Medicare paid $16.97 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
This medication is a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions.
Compared with Illinois prescribers
Dr. Shih wrote 15 prescriptions for Propranolol Hcl, about half as often as the typical Illinois prescriber of it (25). Medicare paid $9.81 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 drug is used to treat high blood pressure.
Compared with Illinois prescribers
Dr. Shih wrote 15 prescriptions for Valsartan-Hydrochlorothiazide, about 61% as often as the typical Illinois prescriber of it (25). Medicare paid $78.35 per fill, versus $31.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Illinois prescribers
Dr. Shih wrote 14 prescriptions for Dropsafe Prep Pads, about 71% as often as the typical Illinois prescriber of it (20). Medicare paid $3.16 per fill, versus $2.88 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
Hydroxyzine is used to treat itching caused by allergies.
Compared with Illinois prescribers
Dr. Shih wrote 14 prescriptions for Hydroxyzine Hcl, about half as often as the typical Illinois prescriber of it (33). Medicare paid $18.63 per fill, versus $16.82 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
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Illinois prescribers
Dr. Shih wrote 14 prescriptions for Novolog Flexpen, about half as often as the typical Illinois prescriber of it (32). Medicare paid $299.58 per fill, versus $249.56 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
Omega-3 acid ethyl esters, a type of fat found in fish oil, is used along with diet and exercise to help lower levels of a certain blood fat (triglyceride).
Compared with Illinois prescribers
Dr. Shih wrote 14 prescriptions for Omega-3 Acid Ethyl Esters, about 81% as often as the typical Illinois prescriber of it (17). Medicare paid $91.36 per fill, versus $59.30 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
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. Shih wrote 13 prescriptions for Clopidogrel, about 21% as often as the typical Illinois prescriber of it (62). Medicare paid $10.65 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
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. Shih wrote 13 prescriptions for Fenofibrate, about half as often as the typical Illinois prescriber of it (25). Medicare paid $17.36 per fill, versus $26.65 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
Methimazole is used to treat overactive thyroid (hyperthyroidism).
Compared with Illinois prescribers
Dr. Shih wrote 13 prescriptions for Methimazole, about 36% as often as the typical Illinois prescriber of it (36). Medicare paid $14.45 per fill, versus $10.56 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
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with Illinois prescribers
Dr. Shih wrote 13 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical Illinois prescriber of it (26). Medicare paid $6.94 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
This medication is used to treat depression.
Compared with Illinois prescribers
Dr. Shih wrote 12 prescriptions for Amitriptyline Hcl, about half as often as the typical Illinois prescriber of it (27). Medicare paid $7.67 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
See also Warning section.
Compared with Illinois prescribers
Dr. Shih wrote 12 prescriptions for Asa-Butalb-Caffeine-Codeine, about 85% as often as the typical Illinois prescriber of it (14). Medicare paid $72.54 per fill, versus $98.60 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
This medication is a combination of two drugs, an ACE inhibitor (benazepril) and a "water pill"/diuretic (hydrochlorothiazide).
Compared with Illinois prescribers
Dr. Shih wrote 12 prescriptions for Benazepril-Hydrochlorothiazide, about 67% as often as the typical Illinois prescriber of it (18). Medicare paid $29.32 per fill, versus $27.98 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
Methylprednisolone is used to treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, eye conditions, skin/kidney/intestinal/lung diseases, and immune system disorders.
Compared with Illinois prescribers
Dr. Shih wrote 12 prescriptions for Methylprednisolone, about 35% as often as the typical Illinois prescriber of it (34). Medicare paid $5.73 per fill, versus $5.95 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
This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with Illinois prescribers
Dr. Shih wrote 12 prescriptions for Pregabalin, about 29% as often as the typical Illinois prescriber of it (41). Medicare paid $163.36 per fill, versus $32.81 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. Shih wrote 12 prescriptions for Sulfamethoxazole-Trimethoprim, about half as often as the typical Illinois prescriber of it (28). Medicare paid $1.97 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 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. Shih wrote 12 prescriptions for Symbicort, about half as often as the typical Illinois prescriber of it (24). Medicare paid $435.22 per fill, versus $315.56 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
See also Warning section.
Compared with Illinois prescribers
Dr. Shih wrote 11 prescriptions for Acetaminophen-Codeine, about 38% as often as the typical Illinois prescriber of it (29). Medicare paid $5.45 per fill, versus $12.64 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. Shih wrote 11 prescriptions for Bupropion Xl, about 29% as often as the typical Illinois prescriber of it (38). Medicare paid $3.58 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 prevent or treat gout attacks (flares).
Compared with Illinois prescribers
Dr. Shih wrote 11 prescriptions for Colchicine, about half as often as the typical Illinois prescriber of it (22). Medicare paid $3.28 per fill, versus $54.96 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 (hypertension).
Compared with Illinois prescribers
Dr. Shih wrote 11 prescriptions for Olmesartan-Hydrochlorothiazide, about half as often as the typical Illinois prescriber of it (23). Medicare paid $12.26 per fill, versus $32.28 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 contains digestive enzymes to help break down and digest fats, starch, and proteins in food.
Compared with Illinois prescribers
Dr. Shih wrote 11 prescriptions for Pancreaze, about as often as the typical Illinois prescriber of it (12). Medicare paid $186.99 per fill, versus $1,715.75 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 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. Shih wrote 11 prescriptions for Wixela Inhub, about half as often as the typical Illinois prescriber of it (21). Medicare paid $137.02 per fill, versus $172.14 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. Shih’s prescriptions
What does Dr. Shih prescribe most?
In 2024 Medicare Part D data, Dr. Shih's most prescribed medications were Atorvastatin Calcium (380), Levothyroxine Sodium (314) and Amlodipine Besylate (297).
How does Dr. Shih's prescribing compare with other Illinois prescribers?
Of the 95 medications with a state comparison, Dr. Shih prescribes 17 more often than the typical Illinois prescriber, 27 about as often and 51 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Shih 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.
