Andrew H. Ahn, M.D.
Vascular Surgery Physician · Pomona, CA
Andrew H. Ahn, M.D. is a vascular surgery physician with a practice address in Pomona, California, and NPI 1356363543, issued on Jul 24, 2006. Check the license (California A37061, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew H. Ahn
- Credential
- M.D.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- A37061 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1900 Royalty Dr, Pomona, CA 91767
- Phone
- (714) 530-0303
- Enumerated
- Jul 24, 2006
- Record last updated
- Apr 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (714) 530-7703
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Also registered at 1900 Royalty Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rosalia ArmasClinical Social Worker1033887435
- Nicholas ChangPeer Specialist1184512188
- Gabriela CruzDay Training/Habilitation Specialist1275205908
- Victoria Cun, O.D.Optometrist1801226998
- Wesley Curry, M.DEmergency Medicine Physician1194774935
- Jared DiehlCase Manager/Care Coordinator1184006363
Verify Andrew H. Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A37061Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average vascular surgery physician in 2024
30 Medicare Part D claims, against an average of 201 among the 3,936 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.
Andrew H. Ahn among 580 vascular surgery physician records in California
Andrew H. Ahn, M.D. is one of 580 vascular surgery 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 6% of them.
- NPI issued2006 · 6% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2018 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
All 580 in California → Every provider in Pomona → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Jerry Kim, MDPomona, CA 917671912295510
- Alexander Lam, MDPomona, CA 917671205497104
- Ayyampalayam MohanPomona, CA 917671407952229
- Edwin Kendrick, MDOntario, CA 917641265730618
- Rex Manayan, M.D.Ontario, CA 917641649278599
- Gilbert Turner, M.D.Upland, CA 917861407928583
- Khan Hameed, MDWest Covina, CA 917901558329623
- Alfonso Miguel, M.D.Glendora, CA 917401124200381
Common questions
What is Andrew H. Ahn, M.D.'s NPI number?
Andrew H. Ahn, M.D.'s National Provider Identifier (NPI) is 1356363543, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrew H. Ahn, M.D. located?
The NPPES record lists a practice address at 1900 Royalty Dr, Pomona, CA, 91767. Phone: (714) 530-0303. Providers update this record themselves, so call before visiting.
How can I verify Andrew H. Ahn, M.D.'s license?
NPPES lists California license number A37061, 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 Andrew H. Ahn, M.D. prescribe under Medicare Part D?
In 2024, Andrew H. Ahn, M.D. had 30 Medicare Part D claims; the average among vascular surgery physician prescribers was 201. 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.