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Michael Oneill, DDS
NPI 1326261025 · General Practice Dentistry · San Ramon, CA
Michael Oneill, DDS is a General Practice Dentistry provider in San Ramon, CA (NPI 1326261025).
Provider details
- NPI number
- 1326261025
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 27814 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(89/100 index)
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
525 Bollinger Canyon Way
Suite 105
San Ramon, CA 94582
Phone: (925) 735-3838
Fax: (925) 735-3866
Street-level locationGet directions
Mailing address
525 Bollinger Canyon Way
San Ramon, CA 94582
Registry dates
- Enumerated
- 2007-04-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Oneill's NPI number?
- Michael Oneill's National Provider Identifier (NPI) is 1326261025, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Oneill's specialty?
- Michael Oneill is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Michael Oneill located?
- Michael Oneill's practice location on file with NPPES is 525 Bollinger Canyon Way, San Ramon, CA 94582.
- What is Michael Oneill's phone number?
- The practice phone number listed in the NPPES registry for Michael Oneill is (925) 735-3838.
- Is Michael Oneill's NPI active?
- Yes — Michael Oneill's NPI (1326261025) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.