Jerald John Thanos, M.D.
Obstetrics & Gynecology Physician · Fullerton, CA
Jerald John Thanos, M.D. is an obstetrics & gynecology physician with a practice address in Fullerton, California, and NPI 1013947738, issued on Jul 5, 2006. Check the license (California A46502, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jerald John Thanos
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A46502 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
- Aug 22, 2022
- Fax
- (714) 990-3133
- Medicaid ID
- 00A465020 CA
- Medicare enrollment
- Enrolled (PECOS I20100806000212); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1987
- 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
- Nicholas Thanos, M.D.Obstetrics & Gynecology Physician1427088194
Verify Jerald John Thanos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A46502Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.3 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
875 Medicare Part D claims for 193 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 17 claims were for opioids.
Most prescribed
- Estradiol462 claims
- Progesterone91 claims
- Premarin39 claims
- Estradiol-Norethindrone Acetat38 claims
- Estradiol (Twice Weekly)33 claims
- Fluconazole23 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.
Jerald John Thanos among 5,088 obstetrics & gynecology physician records in California
Jerald 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 fileYes · 53% of these records are
- Graduated1987 · median 2004 among the 2,700 with a school on file
- Record last updated2022 · 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
- Nicholas Thanos, M.D.Fullerton, CA 928311427088194
- 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 Jerald John Thanos, M.D.'s NPI number?
Jerald John Thanos, M.D.'s National Provider Identifier (NPI) is 1013947738, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jerald 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 Jerald John Thanos, M.D.'s license?
NPPES lists California license number A46502, 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 Jerald John Thanos, M.D. prescribe under Medicare Part D?
In 2024, Jerald John Thanos, M.D. had 875 Medicare Part D claims for 193 beneficiaries; 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.