GEORGE HENRY COLLYER MD
Prescription History 1215025713
Psychiatry & Neurology - Psychiatry in San Francisco, CA
What does Dr. Collyer prescribe?
In 2024, Dr. Collyer wrote 491 Medicare prescriptions for 19 medications. The most prescribed was Bupropion Xl (bupropion hcl), with 64 prescriptions.
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. Collyer prescribes.
Medications 19 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
This medication is used to treat depression.
Compared with California prescribers
Dr. Collyer wrote 64 prescriptions for Bupropion Xl, about 1.8 times as often as the typical California prescriber of it (35). Medicare paid $22.23 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
This medication is used to treat anxiety.
Compared with California prescribers
Dr. Collyer wrote 52 prescriptions for Lorazepam, about 1.2 times as often as the typical California prescriber of it (43). Medicare paid $9.96 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
This medication is used to treat depression.
Compared with California prescribers
Dr. Collyer wrote 52 prescriptions for Trintellix, about 1.7 times as often as the typical California prescriber of it (31). Medicare paid $474.59 per fill, versus $595.60 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
Lamotrigine is used alone or with other medications to prevent and control seizures.
Compared with California prescribers
Dr. Collyer wrote 37 prescriptions for Lamotrigine, about as often as the typical California prescriber of it (39). Medicare paid $3.83 per fill, versus $14.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat the panic and anxiety symptoms associated with panic disorder.
Compared with California prescribers
Dr. Collyer wrote 33 prescriptions for Alprazolam Xr, about 2.2 times as often as the typical California prescriber of it (15). Medicare paid $38.79 per fill, versus $19.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with California prescribers
Dr. Collyer wrote 30 prescriptions for Duloxetine Hcl, about 74% as often as the typical California prescriber of it (40). Medicare paid $18.39 per fill, versus $24.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with California prescribers
Dr. Collyer wrote 27 prescriptions for Dextroamphetamine-Amphetamine, about as often as the typical California prescriber of it (26). Medicare paid $22.62 per fill, versus $28.60 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 used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with California prescribers
Dr. Collyer wrote 25 prescriptions for Escitalopram Oxalate, about half as often as the typical California prescriber of it (48). Medicare paid $7.89 per fill, versus $11.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Dr. Collyer wrote 22 prescriptions for Mirtazapine, about half as often as the typical California prescriber of it (40). Medicare paid $9.43 per fill, versus $19.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with California prescribers
Dr. Collyer wrote 19 prescriptions for Buspirone Hcl, about half as often as the typical California prescriber of it (37). Medicare paid $28.17 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with California prescribers
Dr. Collyer wrote 19 prescriptions for Zolpidem Tartrate Er, about 1.2 times as often as the typical California prescriber of it (16). Medicare paid $15.00 per fill, versus $25.25 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 a certain sleep problem (insomnia).
Compared with California prescribers
Dr. Collyer wrote 16 prescriptions for Eszopiclone, about 78% as often as the typical California prescriber of it (20). Medicare paid $24.75 per fill, versus $24.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This 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. Collyer wrote 16 prescriptions for Quetiapine Fumarate, about 29% as often as the typical California prescriber of it (55). Medicare paid $11.64 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with California prescribers
Dr. Collyer wrote 15 prescriptions for Gabapentin, about 19% as often as the typical California prescriber of it (80). Medicare paid $15.22 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
Clonazepam is used to prevent and control seizures.
Compared with California prescribers
Dr. Collyer wrote 14 prescriptions for Clonazepam, about 35% as often as the typical California prescriber of it (40). Medicare paid $3.45 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
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, irritability associated with autistic disorder).
Compared with California prescribers
Dr. Collyer wrote 13 prescriptions for Risperidone, about 26% as often as the typical California prescriber of it (49). Medicare paid $0.80 per fill, versus $13.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Dr. Collyer wrote 13 prescriptions for Trazodone Hcl, about 23% as often as the typical California prescriber of it (57). Medicare paid $0.97 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
This combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with California prescribers
Dr. Collyer wrote 12 prescriptions for Dextroamphetamine-Amphet Er, about half as often as the typical California prescriber of it (21). Medicare paid $15.58 per fill, versus $49.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with California prescribers
Dr. Collyer wrote 12 prescriptions for Fluoxetine Hcl, about 36% as often as the typical California prescriber of it (33). Medicare paid $28.34 per fill, versus $11.85 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. Collyer’s prescriptions
What does Dr. Collyer prescribe most?
In 2024 Medicare Part D data, Dr. Collyer's most prescribed medications were Bupropion Xl (64), Lorazepam (52) and Trintellix (52).
How does Dr. Collyer's prescribing compare with other California prescribers?
Of the 19 medications with a state comparison, Dr. Collyer prescribes 3 more often than the typical California prescriber, 5 about as often and 11 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Collyer 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.
