William Warner Fay, DDS
Orthodontics and Dentofacial Orthopedics Dentistry · San Francisco, CA
William Warner Fay, DDS is an orthodontics and dentofacial orthopedics dentistry with a practice address in San Francisco, California, and NPI 1841351376, issued on Dec 12, 2006. Check the license (California DDS22456, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Warner Fay
- Credential
- DDS
- Primary taxonomy
- Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
- License number
- DDS22456 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3501 Fillmore St Apt 301, San Francisco, CA 94123
- Phone
- (415) 994-1188
- Enumerated
- Dec 12, 2006
- Record last updated
- Aug 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 742-9704
- Entity
- Type 1 · individual
8 nearest orthodontics and dentofacial orthopedics dentistry records → All 1,881 in California → Look up another NPI →
Verify William Warner Fay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DDS22456Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Warner Fay among 1,881 orthodontics and dentofacial orthopedics dentistry records in California
William Warner Fay, DDS is one of 1,881 orthodontics and dentofacial orthopedics dentistry records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 78% newer
- In a Medicare fileNo · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2021 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthodontics and Dentofacial Orthopedics Dentistry providers in California
There are 1,881 orthodontics and dentofacial orthopedics dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,881 in California → Every provider in San Francisco → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →
The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes
- Ronnel Azizollahi, DDSSan Francisco, CA 941231891418513
- Antonio Cucalon, D.D.S., M.S.San Francisco, CA 941231316148034
- Mana Jamali, DMDSan Francisco, CA 941231033265368
- Eric Kuo, DDSSan Francisco, CA 941231881628923
- Matthew Cozin, DDSSan Francisco, CA 941221548679319
- Allison Jan, DDSSan Francisco, CA 941221629799358
- Jeffrey Jang, DDSSan Francisco, CA 941221043423445
- Kevin Lee, D.D.S.San Francisco, CA 941221689292047
Common questions
What is William Warner Fay, DDS's NPI number?
William Warner Fay, DDS's National Provider Identifier (NPI) is 1841351376, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Warner Fay, DDS located?
The NPPES record lists a practice address at 3501 Fillmore St Apt 301, San Francisco, CA, 94123. Phone: (415) 994-1188. Providers update this record themselves, so call before visiting.
How can I verify William Warner Fay, DDS's license?
NPPES lists California license number DDS22456, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.