William Wah Tom, D.D.S., M.D.
Oral and Maxillofacial Surgery (Dentist) · San Francisco, CA
William Wah Tom, D.D.S., M.D. is an oral and maxillofacial surgery (dentist) with a practice address in San Francisco, California, and NPI 1174697676, issued on Nov 17, 2006. Check the license (California 32771, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Wah Tom
- Credential
- D.D.S., M.D.
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License numbers
- 32771 CA
G075663C CA
Self-reported in NPPES; status is on the state search - Practice location
- 490 Post St, San Francisco, CA 94102
- Phone
- (415) 392-3122
- Enumerated
- Nov 17, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 392-6237
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 987 in California → Look up another NPI →
Also registered at 490 Post St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Negin Agange, MDOphthalmology Physician1760741045
- Evangeline Amores, DDSGeneral Practice Dentistry1811100894
- Christian AnguianoNaturopath1255787305
- Rebecca Armel, D.D.S.General Practice Dentistry1336167428
- Melvyn Bert, M.D.Ophthalmology Physician1336236165
- Liliana Bucay, DDSGeneral Practice Dentistry1821197336
Verify William Wah Tom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 32771Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
236 Medicare Part D claims for 91 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate107 claims
- Amoxicillin106 claims
- Azithromycin17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $47.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Straumann USA LLC. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Wah Tom among 987 oral and maxillofacial surgery (dentist) records in California
William Wah Tom, D.D.S., M.D. is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 66% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in California
There are 987 oral and maxillofacial surgery (dentist) records in California.
All 987 in California → Every provider in San Francisco → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- Anders Nattestad, DDS, PH.D.San Francisco, CA 941031386786606
- Edmond Bedrossian, DDSSan Francisco, CA 941081508988106
- Frank Dalsanto, MD, DDSSan Francisco, CA 941081831255082
- David Ehsan, MD, DDSSan Francisco, CA 941081295764678
- Christopher Gurries, D.D.S.San Francisco, CA 941081750700837
- Peter Lyu, DDS, MDSan Francisco, CA 941081669529368
- Craig McDow, DMD, MSSan Francisco, CA 941081790884393
- William Chan, DDSSan Francisco, CA 941091699857904
Common questions
What is William Wah Tom, D.D.S., M.D.'s NPI number?
William Wah Tom, D.D.S., M.D.'s National Provider Identifier (NPI) is 1174697676, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Wah Tom, D.D.S., M.D. located?
The NPPES record lists a practice address at 490 Post St, San Francisco, CA, 94102. Phone: (415) 392-3122. Providers update this record themselves, so call before visiting.
How can I verify William Wah Tom, D.D.S., M.D.'s license?
NPPES lists California license number 32771, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Wah Tom, D.D.S., M.D. prescribe under Medicare Part D?
In 2024, William Wah Tom, D.D.S., M.D. had 236 Medicare Part D claims for 91 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.