Nicholas John Thanos, M.D.
Obstetrics & Gynecology Physician · Fullerton, CA
Nicholas John Thanos, M.D. is an obstetrics & gynecology physician with a practice address in Fullerton, California, and NPI 1427088194, issued on Jul 5, 2006. Check the license (California G35873, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicholas John Thanos
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G35873 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2262 N State College Blvd, Fullerton, CA 92831
- Phone
- (714) 990-2900
- Enumerated
- Jul 5, 2006
- Record last updated
- Feb 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (714) 990-3133
- Medicaid ID
- 00G358730 CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 2262 N State College Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janeen Henderson, CNPWomen's Health Nurse Practitioner1942359740
- Vasiliki Tatsis, MDObstetrics & Gynecology Physician1013114719
- Jerald Thanos, M.D.Obstetrics & Gynecology Physician1013947738
Verify Nicholas John Thanos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G35873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
26 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Rhopressa12 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.
Nicholas John Thanos among 5,088 obstetrics & gynecology physician records in California
Nicholas John Thanos, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Fullerton → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Mirna Demirdjian, MDFullerton, CA 928311407085665
- Vasiliki Tatsis, MDFullerton, CA 928311013114719
- Jerald Thanos, M.D.Fullerton, CA 928311013947738
- Christina Borsari, MDFullerton, CA 928351356308704
- Dennis Buchanan, MDFullerton, CA 928351003864737
- Theresa Franks, MDFullerton, CA 928351396700704
- Earl Fuller, M.D.Fullerton, CA 928351053684951
- Brian Gray, MDFullerton, CA 928351457316705
Common questions
What is Nicholas John Thanos, M.D.'s NPI number?
Nicholas John Thanos, M.D.'s National Provider Identifier (NPI) is 1427088194, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas John Thanos, M.D. located?
The NPPES record lists a practice address at 2262 N State College Blvd, Fullerton, CA, 92831. Phone: (714) 990-2900. Providers update this record themselves, so call before visiting.
How can I verify Nicholas John Thanos, M.D.'s license?
NPPES lists California license number G35873, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas John Thanos, M.D. prescribe under Medicare Part D?
In 2024, Nicholas John Thanos, M.D. had 26 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.