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W. Thayer, D.D.S.
NPI 1346442647 · General Practice Dentistry · Petaluma, CA
W. Thayer, D.D.S. is a General Practice Dentistry provider in Petaluma, CA (NPI 1346442647).
Provider details
- NPI number
- 1346442647
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 22423 (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
511 Hayes Ln
Petaluma, CA 94952-4011
Phone: (707) 763-2654
Fax: (707) 763-3141
Street-level locationGet directions
Mailing address
199 Country Club Dr
Santa Rosa, CA 95401-5551
Registry dates
- Enumerated
- 2007-05-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is W. Thayer's NPI number?
- W. Thayer's National Provider Identifier (NPI) is 1346442647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is W. Thayer's specialty?
- W. Thayer is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is W. Thayer located?
- W. Thayer's practice location on file with NPPES is 511 Hayes Ln, Petaluma, CA 94952-4011.
- What is W. Thayer's phone number?
- The practice phone number listed in the NPPES registry for W. Thayer is (707) 763-2654.
- Is W. Thayer's NPI active?
- Yes — W. Thayer's NPI (1346442647) 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.