Bruce O'Neil, M.D.
NPI 1255399580 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bruce O'Neil, M.D. is a Internal Medicine Physician provider in Oakland, CA (NPI 1255399580).
Provider details
- NPI number
- 1255399580
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A23100 (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
- 2006-05-03
- Last updated
- 2012-01-05
Frequently asked questions
- What is Bruce O'Neil's NPI number?
- Bruce O'Neil's National Provider Identifier (NPI) is 1255399580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bruce O'Neil's specialty?
- Bruce O'Neil is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bruce O'Neil located?
- Bruce O'Neil's practice location on file with NPPES is 2700 International Blvd, Oakland, CA 94601-1520.
- What is Bruce O'Neil's phone number?
- The practice phone number listed in the NPPES registry for Bruce O'Neil is (510) 532-2500.
- Does Bruce O'Neil accept Medicare?
- Bruce O'Neil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bruce O'Neil's NPI active?
- Yes — Bruce O'Neil's NPI (1255399580) is active in the NPPES registry as of the last update on 2012-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.