Doctor profile · Federal record
Dr. Mary de May, M.D.
Geriatric Psychiatry Physician (CMS: Psychiatry) · Psychiatry Physician · San Francisco, CA
- NPI 1134163298
- Accepts Medicare
- MIPS 70.8 / 100 · 2023
- 41 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
350 Parnassus Ave Suite 706
San Francisco, CA 941430001
(415) 476-6880
fax (415) 476-4800 - Mailing address
-
1635 Divisadero Street, Suite 625, Box 1821
San Francisco, CA 941430001
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 19, 2012
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 2084P0805X — NUCC code
- State license (1)
- California #G62108
- Medicaid
- CA #00G621080
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134163298. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
234
Distinct HCPCS
2
Medicare allowed
$23,189
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 118 | 63 | $162 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 116 | 25 | $35 |
In context: peer comparison
Among 3 peers in San Francisco Geriatric Psychiatry Physician, average services per provider: 83. This provider delivers 2.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
210
Patients
15
Total drug cost
$7,492
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 55 | 15 | $698 |
| Escitalopram Oxalate | Generic | 45 | 0 | $322 |
| Quetiapine Fumarate | Generic | 30 | 0 | $515 |
| Trazodone Hcl | Generic | 30 | 0 | $497 |
| Divalproex Sodium | Generic | 13 | 0 | $604 |
| Galantamine ER (Galantamine Hbr) | Brand | 13 | 0 | $1,856 |
| Olanzapine | Generic | 12 | 0 | $113 |
| Rivastigmine | Generic | 12 | 0 | $2,888 |
Hospital affiliations
Frequently asked questions
What is Dr. Mary de May's medical specialty?
Dr. Mary de May practices Geriatric Psychiatry Physician in San Francisco, CA.
Where does Dr. Mary de May practice?
Dr. Mary de May practices at 350 Parnassus Ave Suite 706, San Francisco, CA 941430001. Office phone: 4154766880.
What is Dr. Mary de May's NPI?
Dr. Mary de May's National Provider Identifier (NPI) is 1134163298, issued by NPPES.
Does Dr. Mary de May accept Medicare assignment?
Yes. Dr. Mary de May accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary de May commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.