Maryam Attar-Seyedi, M.D
Internal Medicine Physician · Costa Mesa, CA
Maryam Attar-Seyedi, M.D is an internal medicine physician with a practice address in Costa Mesa, California, and NPI 1518972330, issued on Jul 30, 2006. Check the license (California C52547, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maryam Attar-Seyedi
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C52547 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1190 W Baker Street, Costa Mesa, CA 92626
- Phone
- (714) 668-2500
- Enumerated
- Jul 30, 2006
- Record last updated
- Dec 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (714) 668-2515
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Maryam Attar-Seyedi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C52547Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
50 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Maryam Attar-Seyedi among 17,696 internal medicine physician records in California
Maryam Attar-Seyedi, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2016 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Costa Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Philip Cheu, MDCosta Mesa, CA 926261568467215
- Ragavi Elangovan, D.OCosta Mesa, CA 926261336587658
- Shelley Han, M.D.Costa Mesa, CA 926261114345683
- Yvonne Kwan, MDCosta Mesa, CA 926261659378966
- Dariush Lavi, M.D.Costa Mesa, CA 926261750449062
- Huong Le, MDCosta Mesa, CA 926261699727537
- Hoan Le, MDCosta Mesa, CA 926261982656740
- Edward Lee, MDCosta Mesa, CA 926261508863499
Common questions
What is Maryam Attar-Seyedi, M.D's NPI number?
Maryam Attar-Seyedi, M.D's National Provider Identifier (NPI) is 1518972330, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maryam Attar-Seyedi, M.D located?
The NPPES record lists a practice address at 1190 W Baker Street, Costa Mesa, CA, 92626. Phone: (714) 668-2500. Providers update this record themselves, so call before visiting.
How can I verify Maryam Attar-Seyedi, M.D's license?
NPPES lists California license number C52547, 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 Maryam Attar-Seyedi, M.D prescribe under Medicare Part D?
In 2024, Maryam Attar-Seyedi, M.D had 50 Medicare Part D claims; 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.