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William Seaman, M,D,
NPI 1679689418 · Rheumatology Physician · San Francisco, CA
William Seaman, M,D, is a Rheumatology Physician provider in San Francisco, CA (NPI 1679689418).
Provider details
- NPI number
- 1679689418
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M,D,
- Sex
- Male
- Sole proprietor
- No
- License
- G033088 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
4150 Clement St
Vamc 111r
San Francisco, CA 94121-1545
Phone: (415) 750-2104
Fax: (415) 750-6920
Street-level locationGet directions
Mailing address
4150 Clement St
San Francisco, CA 94121
Registry dates
- Enumerated
- 2006-08-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Seaman's NPI number?
- William Seaman's National Provider Identifier (NPI) is 1679689418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Seaman's specialty?
- William Seaman is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is William Seaman located?
- William Seaman's practice location on file with NPPES is 4150 Clement St, San Francisco, CA 94121-1545.
- What is William Seaman's phone number?
- The practice phone number listed in the NPPES registry for William Seaman is (415) 750-2104.
- Is William Seaman's NPI active?
- Yes — William Seaman's NPI (1679689418) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.