Mark Min-Young Ahn, M.D.
Anesthesiology Physician · Gilroy, CA
Mark Min-Young Ahn, M.D. is an anesthesiology physician with a practice address in Gilroy, California, and NPI 1417934670, issued on Dec 29, 2005. Check the license (California G81655, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Min-Young Ahn
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G81655 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9400 N Name Uno, Gilroy, CA 95020
- Phone
- (408) 848-2000
- Enumerated
- Dec 29, 2005
- Record last updated
- Jan 2, 2022
- Medicaid ID
- 00G816550 CA
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 9400 N Name Uno
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Burke, M.D.Emergency Medicine Physician1316961055
- David Carl, MDAnatomic Pathology & Clinical Pathology Physician1750384129
- Kendrick DoMedical-Surgical Registered Nurse1467088955
Verify Mark Min-Young Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G81655Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $173.45
1 payment: food and beverage; the largest payer was Stryker Corporation. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark Min-Young Ahn among 7,571 anesthesiology physician records in California
Mark Min-Young Ahn, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2022 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Gilroy → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Min Lee, M.D.Gilroy, CA 950201083682686
- Mohammed Qadeer, M.D.Gilroy, CA 950201346206299
- Anubhav Sinha, M.D.Gilroy, CA 950201770620817
- Steven Wai, M.D.Gilroy, CA 950201750346508
- Arash Zeighami, D.O.Gilroy, CA 950201376688879
- Peilin Chang, MDFreedom, CA 950191750421939
- Andrew Horsley, M.D.Freedom, CA 950191417020942
- Angela Molina, MDFreedom, CA 950191912979725
Common questions
What is Mark Min-Young Ahn, M.D.'s NPI number?
Mark Min-Young Ahn, M.D.'s National Provider Identifier (NPI) is 1417934670, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Min-Young Ahn, M.D. located?
The NPPES record lists a practice address at 9400 N Name Uno, Gilroy, CA, 95020. Phone: (408) 848-2000. Providers update this record themselves, so call before visiting.
How can I verify Mark Min-Young Ahn, M.D.'s license?
NPPES lists California license number G81655, 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.
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.