William Boyce, MD
NPI 1851732366 · Developmental - Behavioral Pediatrics Physician · San Francisco, CA
William Boyce, MD is a Developmental - Behavioral Pediatrics Physician provider in San Francisco, CA (NPI 1851732366).
Provider details
- NPI number
- 1851732366
- Entity type
- Individual
- Primary specialty
- Developmental - Behavioral Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- C42213 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
Mailing address
Registry dates
- Enumerated
- 2013-07-12
- Last updated
- 2013-07-12
Frequently asked questions
- What is William Boyce's NPI number?
- William Boyce's National Provider Identifier (NPI) is 1851732366, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Boyce's specialty?
- William Boyce is listed in the NPPES registry with a primary specialty of Developmental - Behavioral Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is William Boyce located?
- William Boyce's practice location on file with NPPES is 3333 California St, San Francisco, CA 94118-1981.
- What is William Boyce's phone number?
- The practice phone number listed in the NPPES registry for William Boyce is (925) 984-3535.
- Is William Boyce's NPI active?
- Yes — William Boyce's NPI (1851732366) is active in the NPPES registry as of the last update on 2013-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.