HENRY THAI MD
Prescription History 1720195621
Preventive Medicine - Public Health & General Preventive Medicine in Palo Alto, CA
What does Dr. Thai prescribe?
In 2024, Dr. Thai wrote 996 Medicare prescriptions for 41 medications. The most prescribed was Atorvastatin Calcium, with 89 prescriptions for 29 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. Thai prescribes.
Medications 41 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 California 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 California prescribers
Dr. Thai wrote 89 prescriptions for Atorvastatin Calcium, about half as often as the typical California prescriber of it (202). Medicare paid $9.70 per fill, versus $10.47 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with California prescribers
Dr. Thai wrote 52 prescriptions for Gabapentin, about 65% as often as the typical California prescriber of it (80). Medicare paid $13.39 per fill, versus $15.63 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
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with California prescribers
Dr. Thai wrote 48 prescriptions for Alendronate Sodium, about 79% as often as the typical California prescriber of it (61). Medicare paid $12.78 per fill, versus $9.65 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with California prescribers
Dr. Thai wrote 46 prescriptions for Zolpidem Tartrate, about as often as the typical California prescriber of it (45). Medicare paid $3.98 per fill, versus $6.02 statewide.
Volume reflects 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 California prescribers
Dr. Thai wrote 45 prescriptions for Amlodipine Besylate, about 32% as often as the typical California prescriber of it (141). Medicare paid $9.81 per fill, versus $7.08 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
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 California prescribers
Dr. Thai wrote 36 prescriptions for Rosuvastatin Calcium, about 36% as often as the typical California prescriber of it (101). Medicare paid $15.35 per fill, versus $15.64 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with California prescribers
Dr. Thai wrote 34 prescriptions for Levothyroxine Sodium, about 27% as often as the typical California prescriber of it (125). Medicare paid $6.49 per fill, versus $13.30 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
This combination medication is used to relieve moderate to severe pain.
Compared with California prescribers
Dr. Thai wrote 33 prescriptions for Hydrocodone-Acetaminophen, about half as often as the typical California prescriber of it (76). Medicare paid $12.99 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Thai wrote 33 prescriptions for Metformin Hcl, about 33% as often as the typical California prescriber of it (100). Medicare paid $11.23 per fill, versus $9.26 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 combination of nirmatrelvir and ritonavir is used to treat coronavirus disease (COVID-19) in people who have mild to moderate symptoms and have a high risk for COVID-19 complications.
Compared with California prescribers
Dr. Thai wrote 30 prescriptions for Paxlovid, about 1.2 times as often as the typical California prescriber of it (24). Medicare paid $95.29 per fill, versus $42.82 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
This medication is used to treat depression.
Compared with California prescribers
Dr. Thai wrote 27 prescriptions for Bupropion Xl, about 77% as often as the typical California prescriber of it (35). Medicare paid $20.33 per fill, versus $25.68 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 California prescribers
Dr. Thai wrote 27 prescriptions for Losartan Potassium, about 22% as often as the typical California prescriber of it (121). Medicare paid $10.52 per fill, versus $10.35 statewide.
Volume reflects 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 California prescribers
Dr. Thai wrote 25 prescriptions for Tamsulosin Hcl, about 30% as often as the typical California prescriber of it (84). Medicare paid $19.81 per fill, versus $15.02 statewide.
Volume reflects 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 California prescribers
Dr. Thai wrote 24 prescriptions for Cephalexin, about 81% as often as the typical California prescriber of it (30). Medicare paid $8.24 per fill, versus $7.62 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 anxiety.
Compared with California prescribers
Dr. Thai wrote 24 prescriptions for Lorazepam, about half as often as the typical California prescriber of it (43). Medicare paid $1.46 per fill, versus $6.52 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
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 California prescribers
Dr. Thai wrote 23 prescriptions for Eliquis, about 32% as often as the typical California prescriber of it (73). Medicare paid $1,231.94 per fill, versus $923.33 statewide.
Volume reflects 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 California prescribers
Dr. Thai wrote 21 prescriptions for Azithromycin, about half as often as the typical California prescriber of it (38). Medicare paid $5.36 per fill, versus $4.49 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Thai wrote 21 prescriptions for Metoprolol Tartrate, about 37% as often as the typical California prescriber of it (57). Medicare paid $5.19 per fill, versus $7.82 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with California prescribers
Dr. Thai wrote 20 prescriptions for Donepezil Hcl, about 34% as often as the typical California prescriber of it (58). Medicare paid $12.99 per fill, versus $12.53 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
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with California prescribers
Dr. Thai wrote 20 prescriptions for Metoprolol Succinate, about 23% as often as the typical California prescriber of it (86). Medicare paid $20.76 per fill, versus $14.23 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
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with California prescribers
Dr. Thai wrote 18 prescriptions for Memantine Hcl, about 32% as often as the typical California prescriber of it (56). Medicare paid $35.48 per fill, versus $29.89 statewide.
Volume reflects 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 California prescribers
Dr. Thai wrote 18 prescriptions for Pantoprazole Sodium, about 28% as often as the typical California prescriber of it (65). Medicare paid $14.47 per fill, versus $13.87 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
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 California prescribers
Dr. Thai wrote 18 prescriptions for Simvastatin, about 28% as often as the typical California prescriber of it (63). Medicare paid $9.49 per fill, versus $9.03 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 California prescribers
Dr. Thai wrote 17 prescriptions for Pravastatin Sodium, about half as often as the typical California prescriber of it (38). Medicare paid $13.50 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 certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with California prescribers
Dr. Thai wrote 17 prescriptions for Sertraline Hcl, about 37% as often as the typical California prescriber of it (46). Medicare paid $8.47 per fill, versus $9.59 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 treat certain bladder problems (overactive bladder, neurogenic detrusor overactivity).
Compared with California prescribers
Dr. Thai wrote 16 prescriptions for Myrbetriq, about 36% as often as the typical California prescriber of it (45). Medicare paid $847.43 per fill, versus $698.68 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 alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with California prescribers
Dr. Thai wrote 16 prescriptions for Ondansetron Odt, about 64% as often as the typical California prescriber of it (25). Medicare paid $9.40 per fill, versus $13.40 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 used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with California prescribers
Dr. Thai wrote 16 prescriptions for Quetiapine Fumarate, about 29% as often as the typical California prescriber of it (55). Medicare paid $4.95 per fill, versus $19.69 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
This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with California prescribers
Dr. Thai wrote 16 prescriptions for Venlafaxine Hcl Er, about half as often as the typical California prescriber of it (28). Medicare paid $19.64 per fill, versus $23.92 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
Clonazepam is used to prevent and control seizures.
Compared with California prescribers
Dr. Thai wrote 15 prescriptions for Clonazepam, about 37% as often as the typical California prescriber of it (40). Medicare paid $7.54 per fill, versus $7.09 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
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with California prescribers
Dr. Thai wrote 15 prescriptions for Finasteride, about 27% as often as the typical California prescriber of it (56). Medicare paid $31.73 per fill, versus $13.71 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
This medication is used to treat high blood pressure.
Compared with California prescribers
Dr. Thai wrote 15 prescriptions for Hydrochlorothiazide, about 24% as often as the typical California prescriber of it (62). Medicare paid $1.77 per fill, versus $5.71 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
This medication is used alone or with other medications to treat Parkinson's disease.
Compared with California prescribers
Dr. Thai wrote 15 prescriptions for Ropinirole Hcl, about half as often as the typical California prescriber of it (27). Medicare paid $46.44 per fill, versus $15.64 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 California prescribers
Dr. Thai wrote 15 prescriptions for Trazodone Hcl, about 26% as often as the typical California prescriber of it (57). Medicare paid $18.11 per fill, versus $9.93 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
Lisinopril is used to treat high blood pressure.
Compared with California prescribers
Dr. Thai wrote 14 prescriptions for Lisinopril, about 14% as often as the typical California prescriber of it (98). Medicare paid $15.24 per fill, versus $8.30 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with California prescribers
Dr. Thai wrote 14 prescriptions for Montelukast Sodium, about 29% as often as the typical California prescriber of it (49). Medicare paid $13.88 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with California prescribers
Dr. Thai wrote 14 prescriptions for Omeprazole, about 18% as often as the typical California prescriber of it (78). Medicare paid $23.46 per fill, versus $11.26 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Thai wrote 13 prescriptions for Atenolol, about 26% as often as the typical California prescriber of it (50). Medicare paid $11.31 per fill, versus $9.20 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with California prescribers
Dr. Thai wrote 13 prescriptions for Ezetimibe, about 26% as often as the typical California prescriber of it (51). Medicare paid $212.02 per fill, versus $26.00 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
Pramipexole is used alone or with other medications to treat Parkinson's disease.
Compared with California prescribers
Dr. Thai wrote 12 prescriptions for Pramipexole Dihydrochloride, about half as often as the typical California prescriber of it (25). Medicare paid $1.63 per fill, versus $16.59 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
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with California prescribers
Dr. Thai wrote 11 prescriptions for Valacyclovir, about half as often as the typical California prescriber of it (22). Medicare paid $46.05 per fill, versus $35.75 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. Thai’s prescriptions
What does Dr. Thai prescribe most?
In 2024 Medicare Part D data, Dr. Thai's most prescribed medications were Atorvastatin Calcium (89), Gabapentin (52) and Alendronate Sodium (48).
How does Dr. Thai's prescribing compare with other California prescribers?
Of the 41 medications with a state comparison, Dr. Thai prescribes 5 about as often than the typical California prescriber and 36 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Thai 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 California 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.
