William Pereira, MD
NPI 1437485133 · Occupational Medicine Physician · Berkeley, CA
William Pereira, MD is a Occupational Medicine Physician provider in Berkeley, CA (NPI 1437485133).
Provider details
- NPI number
- 1437485133
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G32080 (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
16 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
- 2009-10-30
- Last updated
- 2009-10-30
Frequently asked questions
- What is William Pereira's NPI number?
- William Pereira's National Provider Identifier (NPI) is 1437485133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Pereira's specialty?
- William Pereira is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Pereira located?
- William Pereira's practice location on file with NPPES is 2222 Bancroft Way, Berkeley, CA 94720-4300.
- What is William Pereira's phone number?
- The practice phone number listed in the NPPES registry for William Pereira is (510) 642-6891.
- Is William Pereira's NPI active?
- Yes — William Pereira's NPI (1437485133) is active in the NPPES registry as of the last update on 2009-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.