William R Crain MD Inc
NPI 1316008147 · Procedural Dermatology Physician · Oakland, CA
William R Crain MD Inc is a Procedural Dermatology Physician organization in Oakland, CA (NPI 1316008147).
Provider details
- NPI number
- 1316008147
- Entity type
- Organization
- Primary specialty
- Procedural Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Crain, Physician Owner(510) 452-4900
- License
- C031924 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-12-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is William R Crain MD Inc's NPI number?
- William R Crain MD Inc's National Provider Identifier (NPI) is 1316008147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William R Crain MD Inc?
- William R Crain MD Inc is classified in the NPPES registry as Procedural Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is William R Crain MD Inc located?
- William R Crain MD Inc's practice location on file with NPPES is 3300 Webster St, Oakland, CA 94609.
- What is William R Crain MD Inc's phone number?
- The practice phone number listed in the NPPES registry for William R Crain MD Inc is (510) 452-4900.
- Who is the authorized official for William R Crain MD Inc?
- The authorized official listed on William R Crain MD Inc's NPPES record is William Crain, Physician Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William R Crain MD Inc's NPI active?
- Yes — William R Crain MD Inc's NPI (1316008147) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.