Doctor profile · Federal record
Dr. Henry Hamilton, M.D.
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Internal Medicine Physician · San Mateo, CA
- NPI 1417927534
- Accepts Medicare
- 51 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
136 N San Mateo Dr Ste 101
San Mateo, CA 944012779
(650) 375-1800
fax (650) 375-8269
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- May 19, 2025
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State licenses (2)
- California #A36569 · California #A39569
- Medicaid
- CA #00A395690
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1417927534. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
401
Distinct HCPCS
7
Medicare allowed
$25,805
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 81 | 44 | $101 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 79 | 79 | $43 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 70 | 70 | $50 | |
G0328 |
Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous | 59 | 59 | $18 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 54 | 45 | $64 | |
76830 |
Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 43 | 38 | $145 | |
81002 |
Urinalysis, manual test | 15 | 14 | $3 |
In context: peer comparison
Among 6 peers in San Mateo Obstetrics & Gynecology Physician, average services per provider: 46. This provider delivers 8.7× the peer median.Open Payments
Industry payments received
All-time total
$356
Transactions
20
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Mayne Pharma Commercial LLC | 13 | $174.94 | |
| Pfizer INC. | 2 | $58.02 | |
| Ethicon US, LLC | 1 | $34.57 | |
| Minerva Surgical, INC | 1 | $29.35 | |
| Hologic Sales and Service, LLC | 1 | $22.01 | |
| Aspira Women's Health INC | 1 | $20.64 | |
| Sumitomo Pharma America, INC. | 1 | $16.84 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
32
Patients
15
Total drug cost
$1,618
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefdinir | Generic | 16 | 15 | $308 |
| Estradiol | Generic | 16 | 0 | $1,309 |
Hospital affiliations
Frequently asked questions
What is Dr. Henry Hamilton's medical specialty?
Dr. Henry Hamilton practices Obstetrics & Gynecology Physician in San Mateo, CA.
Where does Dr. Henry Hamilton practice?
Dr. Henry Hamilton practices at 136 N San Mateo Dr Ste 101, San Mateo, CA 944012779. Office phone: 6503751800.
What is Dr. Henry Hamilton's NPI?
Dr. Henry Hamilton's National Provider Identifier (NPI) is 1417927534, issued by NPPES.
Does Dr. Henry Hamilton accept Medicare assignment?
Yes. Dr. Henry Hamilton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Henry Hamilton commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (HCPCS Q0091). Source: CMS Medicare Physician & Other Practitioners file.