Andrew Ahn, M.D.
Internal Medicine Physician · Washington, DC
Andrew Ahn, M.D. is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1154785574, issued on Apr 12, 2016. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Andrew Ahn
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101268210 VA
Self-reported in NPPES; status is on the state search - Practice location
- 110 Irving St NW, Washington, DC 20010
- Phone
- (202) 877-8278
- Enumerated
- Apr 12, 2016
- Record last updated
- Feb 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (202) 877-6292
- Medicare enrollment
- Enrolled (PECOS I20200317001756); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 110 Irving St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andrew Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
298 Medicare Part D claims for 137 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass30 claims
- Eliquis14 claims
- Atorvastatin Calcium13 claims
- Simvastatin11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $45.72
2 payments; by number, the most common kind was food and beverage; the largest payer was Canon Medical Systems USA, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Emergency Medicine Associates P.A., P.C.Arlington, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
891 internal medicine physician records list a practice address in Washington
They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.
All 891 in Washington → All 901 in District of Columbia → Every provider in Washington →
Other internal medicine physician records in District of Columbia
- Kathleen AbalosWashington, DC1831451764
- Mohamed Abdelfattah, M.DWashington, DC1164155818
- Diena AbdelmagedWashington, DC1598226391
- Ahmed Abdulameer, MDWashington, DC1295264166
- Fozia Abdulwahabe, M.DWashington, DC1386763373
- Syed Hasan Raza Abidi, MBBSWashington, DC1265127906
- Davis Abongwa, MDWashington, DC1780267559
- Randi Abramson, MDWashington, DC1841379252
- Khadega Abuelgasim Ahmed, M.DWashington, DC1801070297
- Ahmed AbughabanWashington, DC1205100518
Common questions
What is Andrew Ahn, M.D.'s NPI number?
Andrew Ahn, M.D.'s National Provider Identifier (NPI) is 1154785574, issued on Apr 12, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Ahn, M.D. located?
The NPPES record lists a practice address at 110 Irving St NW, Washington, DC, 20010. Phone: (202) 877-8278. Providers update this record themselves, so call before visiting.
How can I verify Andrew Ahn, M.D.'s license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Andrew Ahn, M.D. prescribe under Medicare Part D?
In 2024, Andrew Ahn, M.D. had 298 Medicare Part D claims for 137 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Andrew Ahn, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.