William Chao, D.M.D.
Dentist · Vallejo, CA
William Chao, D.M.D. is a dentist with a practice address in Vallejo, California, and NPI 1881127785, issued on Apr 7, 2017. Check the license (California 101262, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Chao
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License number
- 101262 CA
Self-reported in NPPES; status is on the state search - Practice location
- 201 Walnut Ave, Vallejo, CA 94592
- Phone
- (707) 562-8283
- Enumerated
- Apr 7, 2017
- Record last updated
- Apr 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 201 Walnut Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Judith Kujawski, NPAdult Health Nurse Practitioner1184694580
- Yugin Lam, DMDStudent in an Organized Health Care Education/Training Program1598472490
- Maclyn Merritt, RDHDental Hygienist1467064584
Verify William Chao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 101262Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average dentist in 2024
15 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
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: $36.15
1 payment: food and beverage; the largest payer was Solventum Corporation. The 31,974 providers of this specialty with any payment received $540.36 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 Chao among 14,729 dentist records in California
William Chao, D.M.D. is one of 14,729 dentist 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. Its NPI, issued in 2017, is newer than 73% of them.
- NPI issued2017 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2017 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 dentist records list a practice address in Vallejo
They are 40 of the 2,836 NPPES records with a practice address in Vallejo, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Vallejo → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Linda Chie, D.D.S.Mare Island, CA 945921689659518
- Anthony Hua, DDSVallejo, CA 945921720702053
- Renu Sharma, DDSMare Island, CA 945921952386625
- Jack TanVallejo, CA 945921073434387
- Dotun AdebiyiVallejo, CA 945911689457848
- Bano Ali, DMDVallejo, CA 945911871130989
- Jerry Annoni, DDSVallejo, CA 945911801162037
- Carolina EsguerraVallejo, CA 945911790870582
Common questions
What is William Chao, D.M.D.'s NPI number?
William Chao, D.M.D.'s National Provider Identifier (NPI) is 1881127785, issued on Apr 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is William Chao, D.M.D. located?
The NPPES record lists a practice address at 201 Walnut Ave, Vallejo, CA, 94592. Phone: (707) 562-8283. Providers update this record themselves, so call before visiting.
How can I verify William Chao, D.M.D.'s license?
NPPES lists California license number 101262, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Chao, D.M.D. prescribe under Medicare Part D?
In 2024, William Chao, D.M.D. had 15 Medicare Part D claims; the average among dentist prescribers was 86. 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.