Mamak Eatesam, M.D.
Internal Medicine Physician · Irvine, CA
Mamak Eatesam, M.D. is an internal medicine physician with a practice address in Irvine, California, and NPI 1407139314, issued on Sep 27, 2011. Check the license (California A157965, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mamak Eatesam
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A157965 CA
125.060479 IL
01074579B IN
Self-reported in NPPES; status is on the state search - Practice location
- 62 Corporate Park Ste 145, Irvine, CA 92606
- Phone
- (408) 881-4177
- Enumerated
- Sep 27, 2011
- Record last updated
- Nov 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20211015001685); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Mamak Eatesam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
143 Medicare Part D claims for 47 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% 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.
Mamak Eatesam among 17,696 internal medicine physician records in California
Mamak Eatesam, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2002 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Stuart Gilman, MDIrvine, CA 926061184681041
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- Hyesun Kim, M.D.Irvine, CA 926061518157585
- Farhad Nassiri Afshar, MDIrvine, CA 926061639889165
- James Strebig, MDIrvine, CA 926061093716151
- Omid Vesal, M.D.Irvine, CA 926061003856204
- Samy Younis, M.D.Irvine, CA 926061922115203
- Lawrence AhnIrvine, CA 926041942836945
Common questions
What is Mamak Eatesam, M.D.'s NPI number?
Mamak Eatesam, M.D.'s National Provider Identifier (NPI) is 1407139314, issued on Sep 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mamak Eatesam, M.D. located?
The NPPES record lists a practice address at 62 Corporate Park Ste 145, Irvine, CA, 92606. Phone: (408) 881-4177. Providers update this record themselves, so call before visiting.
How can I verify Mamak Eatesam, M.D.'s license?
NPPES lists California license number A157965, 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 Mamak Eatesam, M.D. prescribe under Medicare Part D?
In 2024, Mamak Eatesam, M.D. had 143 Medicare Part D claims for 47 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.