James Leon Winterton, D.D.S
Dentist · Newport Beach, CA
James Leon Winterton, D.D.S is a dentist with a practice address in Newport Beach, California, and NPI 1386990471, issued on Jul 26, 2012. Check the license (California 63531, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Leon Winterton
- Credential
- D.D.S
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 63531 CA
28238 TX
Self-reported in NPPES; status is on the state search - Practice location
- 400 Newport Center Dr, Newport Beach, CA 92660
- Phone
- (949) 760-6022
- Enumerated
- Jul 26, 2012
- Record last updated
- Jan 9, 2015 (not updated in 11 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 400 Newport Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Leon Winterton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 63531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average dentist in 2024
86 Medicare Part D claims for 61 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
- Amoxicillin40 claims
- Amoxicillin-Clavulanate Potass19 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: $43.09
2 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, 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 Leon Winterton among 14,729 dentist records in California
James Leon Winterton, 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 2012, is newer than 57% of them.
- NPI issued2012 · 57% of these records are older, 40% 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 updated2015 · 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).
55 dentist records list a practice address in Newport Beach
They are 55 of the 4,414 NPPES records with a practice address in Newport Beach, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Newport Beach → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- John Anderson, DDSNewport Beach, CA 926601649375387
- Michael Barnes, DDSNewport Beach, CA 926601801002787
- James Correa, DDSNewport Beach, CA 926601659496404
- Banafsheh Dadgarian Shoushtari, DMD, FAGDNewport Beach, CA 926601871700385
- Tandis Eftekhari, DMDNewport Beach, CA 926601063628816
- Kimberly Genc, DDSNewport Beach, CA 926601912119652
- Omid Haroonian, DDSNewport Beach, CA 926601780702936
- Edward Huster, D.D.S.Newport Beach, CA 926601598976482
Common questions
What is James Leon Winterton, D.D.S's NPI number?
James Leon Winterton, D.D.S's National Provider Identifier (NPI) is 1386990471, issued on Jul 26, 2012. An NPI identifies a provider in billing; it is not a license.
Where is James Leon Winterton, D.D.S located?
The NPPES record lists a practice address at 400 Newport Center Dr, Newport Beach, CA, 92660. Phone: (949) 760-6022. Providers update this record themselves, so call before visiting.
How can I verify James Leon Winterton, D.D.S's license?
NPPES lists California license number 63531, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Leon Winterton, D.D.S prescribe under Medicare Part D?
In 2024, James Leon Winterton, D.D.S had 86 Medicare Part D claims for 61 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.