William Brown, M.D.
NPI 1457394926 · Surgery Physician · Fremont, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Brown, M.D. is a Surgery Physician provider in Fremont, CA (NPI 1457394926).
Provider details
- NPI number
- 1457394926
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G46351 (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
20 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
- 2006-06-13
- Last updated
- 2024-01-13
- Certified
- 2024-01-13
Frequently asked questions
- What is William Brown's NPI number?
- William Brown's National Provider Identifier (NPI) is 1457394926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Brown's specialty?
- William Brown is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Brown located?
- William Brown's practice location on file with NPPES is 39470 Paseo Padre Pkwy, Fremont, CA 94538-2310.
- What is William Brown's phone number?
- The practice phone number listed in the NPPES registry for William Brown is (510) 793-2404.
- Does William Brown accept Medicare?
- William Brown is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Brown's NPI active?
- Yes — William Brown's NPI (1457394926) is active in the NPPES registry as of the last update on 2024-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.