Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Sellman, MD

Individual provider Family Medicine Physician · NPI 1205999034

Dr. William Sellman, MD is registered under Family Practice in San Francisco, California. Graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1996, 30 years ago. Practices with One Medical Group Inc, a 328-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
30
Trained at
Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

559 Clay St Ste 200
San Francisco, CA 94111-3029
Phone: (415) 644-5265
Fax: (415) 291-0489
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2433 Central Ave, Alameda, CA 94501-6562 — (510) 521-2300

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A65803 (CA)

Record details

NPI number1205999034
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 19, 2006
Last updated in NPPESMay 30, 2024
Certification dateMay 30, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolCLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduated 1996 (30 years in practice)
Group practice One Medical Group Inc — 328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients88
Services billed 216 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at One Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 328 clinicians in the practice; 12 are shown here.

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