NPPES file of Aug 9, 2026

Edward Ahn, M.D.

Specialist · Los Angeles, CA

Edward Ahn, M.D. is a specialist with a practice address in Los Angeles, California, and NPI 1982663795, issued on Mar 21, 2006. Check the license (California A40196, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982663795
Name
Edward Ahn
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
A40196 CA
Self-reported in NPPES; status is on the state search
Practice location
4620 Beverly Blvd, Los Angeles, CA 90004
Phone
(323) 462-6423
Enumerated
Mar 21, 2006
Record last updated
Nov 6, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(323) 462-3904
Medicaid ID
00A401960 CA
Medicare enrollment
Enrolled (PECOS I20110209000516); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Edward Ahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A40196
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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70% fewer Medicare Part D claims than the average specialist in 2024

414 Medicare Part D claims for 89 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Edward Ahn414
  2. Specialty average1,380

Most prescribed

  1. Pantoprazole Sodium50 claims
  2. Oseltamivir Phosphate44 claims
  3. Azithromycin43 claims
  4. Paxlovid20 claims
  5. Omega-3 Acid Ethyl Esters17 claims
  6. Vascepa17 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.

Edward Ahn among 5,749 specialist records in California

Edward Ahn, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1979 · median 1989 among the 1,075 with a school on file
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Myung Choi, M.D.Los Angeles, CA 900041679650675
  2. Rita MandelenisLos Angeles, CA 900041952679037
  3. Patrick Park, M.D.Los Angeles, CA 900041215975594
  4. Gyoung Park, M.D.Los Angeles, CA 900041871532309
  5. Nicole Quaid, LMFTLos Angeles, CA 900041477809788
  6. Marshall Corren, M.D.Los Angeles, CA 900061992731830
  7. Pejman Samouha, M.DLos Angeles, CA 900061437397205
  8. Calvin Toling, PHYSICAL THERAPISTLos Angeles, CA 900061639312341

Common questions

What is Edward Ahn, M.D.'s NPI number?

Edward Ahn, M.D.'s National Provider Identifier (NPI) is 1982663795, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Edward Ahn, M.D. located?

The NPPES record lists a practice address at 4620 Beverly Blvd, Los Angeles, CA, 90004. Phone: (323) 462-6423. Providers update this record themselves, so call before visiting.

How can I verify Edward Ahn, M.D.'s license?

NPPES lists California license number A40196, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Edward Ahn, M.D. prescribe under Medicare Part D?

In 2024, Edward Ahn, M.D. had 414 Medicare Part D claims for 89 beneficiaries; the average among specialist prescribers was 1,380. 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.