James William Willis, D.D.S.
Dentist · Cambria, CA
James William Willis, D.D.S. is a dentist with a practice address in Cambria, California, and NPI 1477701142, issued on Sep 5, 2008. Check the license (California 57131, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James William Willis
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 57131 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2150 Main St, Cambria, CA 93428
- Phone
- (805) 927-4811
- Enumerated
- Sep 5, 2008
- Record last updated
- Sep 5, 2008 (not updated in 18 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 2150 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frank Fratto, D.D.S.General Practice Dentistry1114974409
- Phillip Opperman, D.D.S.General Practice Dentistry1407929987
Verify James William Willis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 57131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average dentist in 2024
37 Medicare Part D claims for 23 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Penicillin V Potassium11 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: $103.15
2 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. 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.
James William Willis among 14,729 dentist records in California
James William Willis, D.D.S. 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 2008, is newer than 42% of them.
- NPI issued2008 · 42% of these records are older, 52% 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 updated2008 · 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).
1 dentist record lists a practice address in Cambria
They are 1 of the 50 NPPES records with a practice address in Cambria, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Cambria → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Adam Haws, DDSBuellton, CA 934271932268323
- James Kim, D.D.S.Buellton, CA 934271396851630
- Cheng Hsu Huang, DDSGrover Beach, CA 934331205395639
- Roberto Tinoco, D.D.S.Grover Beach, CA 934331770036279
- Jerry Yu, DDSGrover Beach, CA 934331821318577
- Delmer Bond, D,D,S,Atascadero, CA 934221336357417
- Ronald Chalker, DDSAtascadero, CA 934221871995589
- Matthew Coons, D.D.S.Atascadero, CA 934221750609301
Common questions
What is James William Willis, D.D.S.'s NPI number?
James William Willis, D.D.S.'s National Provider Identifier (NPI) is 1477701142, issued on Sep 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is James William Willis, D.D.S. located?
The NPPES record lists a practice address at 2150 Main St, Cambria, CA, 93428. Phone: (805) 927-4811. Providers update this record themselves, so call before visiting.
How can I verify James William Willis, D.D.S.'s license?
NPPES lists California license number 57131, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James William Willis, D.D.S. prescribe under Medicare Part D?
In 2024, James William Willis, D.D.S. had 37 Medicare Part D claims for 23 beneficiaries; 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.