Doctor profile · Federal record
Dr. John Chan, MD
Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Obstetrics & Gynecology Physician · San Francisco, CA
- NPI 1962596551
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1100 van Ness Ave Fl 4
San Francisco, CA 94109
(415) 600-0930 - Additional location
-
751 S Bascom Ave, OB/GYN Dept
San Jose, CA 95128
(408) 885-5000 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- May 28, 2020
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207VX0201X — NUCC code
- State license (1)
- California #A61661
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1962596551. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
434
Distinct HCPCS
6
Medicare allowed
$92,466
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 131 | 55 | $210 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 113 | 84 | $151 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 100 | 77 | $108 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 65 | 65 | $259 | |
58571 |
Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less | 14 | 14 | $1,006 | |
38572 |
Removal of lymph nodes of both sides of pelvis and abdominal lymph node biopsy using an endoscope | 11 | 11 | $559 |
In context: peer comparison
Among 4 peers in San Francisco Gynecologic Oncology Physician, average services per provider: 53. This provider delivers 8.2× the peer median.Open Payments
Industry payments received
All-time total
$336,565
Transactions
188
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GlaxoSmithKline, LLC. | 59 | $93,340.52 | |
| AstraZeneca Pharmaceuticals Lp | 45 | $89,045.64 | |
| Abbvie INC. | 29 | $51,884.96 | |
| Eisai INC. | 22 | $42,297.88 | |
| Pfizer INC. | 17 | $34,614.33 | |
| Genmab U.S., INC. | 7 | $23,069.61 | |
| Medical Device Business Services, INC. | 2 | $1,265.64 | |
| Myriad Genetic Laboratories, INC. | 4 | $907.04 | |
| Karyopharm Therapeutics INC. | 1 | $102.98 | |
| Merck Sharp & Dohme LLC | 2 | $36.18 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
50
Patients
48
Total drug cost
$173
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 50 | 48 | $173 |
Hospital affiliations
Frequently asked questions
What is Dr. John Chan's medical specialty?
Dr. John Chan practices Gynecologic Oncology Physician in San Francisco, CA.
Where does Dr. John Chan practice?
Dr. John Chan practices at 1100 van Ness Ave Fl 4, San Francisco, CA 94109. Office phone: 4156000930.
What is Dr. John Chan's NPI?
Dr. John Chan's National Provider Identifier (NPI) is 1962596551, issued by NPPES.
Does Dr. John Chan accept Medicare assignment?
Yes. Dr. John Chan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Chan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.