Nathan Eitan, MD
Endocrinology, Diabetes & Metabolism Physician · Whittier, CA
Nathan Eitan, MD is an endocrinology, diabetes & metabolism physician with a practice address in Whittier, California, and NPI 1609986975, issued on Aug 30, 2006. Check the license (California A36074, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathan Eitan
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A36074 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9200 Colima RD, Whittier, CA 90605
- Phone
- (562) 945-2833
- Enumerated
- Aug 30, 2006
- Record last updated
- Jun 24, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (562) 945-3883
- Medicaid ID
- 00A360740 CA
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathan Eitan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A36074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
32 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Nathan Eitan among 1,131 endocrinology, diabetes & metabolism physician records in California
Nathan Eitan, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2010 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Whittier → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Edward Reece, M.D.Whittier, CA 906021235253576
- Amir KhanMontebello, CA 906401801277447
- Minou Tran, M.D.Pico Rivera, CA 906601538137054
- Ahl Jeffrey Caseja, MDSanta Fe Springs, CA 906701699169649
- Steven Sherman, MDCerritos, CA 907031922318385
- Nidhi Agarwal, MDTorrance, CA 905051518387125
- Aarthi Arasu, MDTorrance, CA 905051326218249
- Soubhi Bahna, M.D.Torrance, CA 905051497069751
Common questions
What is Nathan Eitan, MD's NPI number?
Nathan Eitan, MD's National Provider Identifier (NPI) is 1609986975, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nathan Eitan, MD located?
The NPPES record lists a practice address at 9200 Colima RD, Whittier, CA, 90605. Phone: (562) 945-2833. Providers update this record themselves, so call before visiting.
How can I verify Nathan Eitan, MD's license?
NPPES lists California license number A36074, 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 Nathan Eitan, MD prescribe under Medicare Part D?
In 2024, Nathan Eitan, MD had 32 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.