Are you Dr. Chan? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileWhere to find John K. Chan, MD
- San Francisco location main office
1100 Van Ness Ave Fl 4, San Francisco, CA 94109 - San Jose location
751 S Bascom Ave, OB/GYN Dept, San Jose, CA 95128
About Dr. Chan
Based in San Francisco, CA, John K. Chan, MD is listed in the NPI registry under gynecological oncology. John graduated from University of California, Geffen School of Medicine in 1995. John is also listed as specializing in obstetrics & gynecology and gynecologic oncology. Medicare claims data shows John provided 514 services to 314 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. NPI 1962596551 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (415) 600-0930
- Email not available
Practice Locations
1100 VAN NESS AVE FL 4
San Francisco, CA 94109
751 S Bascom Ave OB/GYN Dept
San Jose, CA 95128
Procedures Most Often Billed to Medicare
514 services · 314 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less | Procedure | 58571 |
11 | Less often than most peers in Gynecological Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
168 | More than most peers in Gynecological Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
166 | More often than most peers in Gynecological Oncology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
112 | More often than most peers in Gynecological Oncology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
57 | More than most peers in Gynecological Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gynecological oncology specialists in San Francisco 5
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 3
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1995 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Chan specialize in?
Dr. Chan is a gynecological oncology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Chan located?
Dr. Chan is listed at 1100 Van Ness Ave Fl 4, San Francisco, CA 94109. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Chan's phone number?
The number on file is (415) 600-0930. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Chan?
Dr. Chan's National Provider Identifier is 1962596551. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Chan go to medical school?
Dr. Chan attended University of California, Geffen School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chan have?
Dr. Chan has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Chan do most often?
According to Medicare billing data, Dr. Chan performs procedures including removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.