Kristopher D. Ahn, M.D.
Internal Medicine Physician · Philadelphia, PA
Kristopher D. Ahn, M.D. is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1073967451, issued on Apr 21, 2016. Check the license (Pennsylvania MD470105, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Kristopher D. Ahn
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD470105 PA
Self-reported in NPPES; status is on the state search - Practice location
- 861 E Allegheny Ave Ste Msb 1134, Philadelphia, PA 19134
- Phone
- (215) 302-3600
- Enumerated
- Apr 21, 2016
- Record last updated
- Jul 24, 2024
- Fax
- (215) 329-2369
- Medicare enrollment
- Enrolled (PECOS I20200714000103); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Kristopher D. Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD470105Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,937 Medicare Part D claims for 181 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 41 claims were for opioids.
Most prescribed
- Atorvastatin Calcium205 claims
- Metformin Hcl112 claims
- Omeprazole111 claims
- Trulicity90 claims
- Jardiance82 claims
- Lisinopril81 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.
Bills Medicare through one group practice
- Esperanza Health Center, Inc.Philadelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristopher D. Ahn among 7,300 internal medicine physician records in Pennsylvania
Kristopher D. Ahn, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 65% of them.
- NPI issued2016 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2008 among the 4,208 with a school on file
- Record last updated2024 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Daria Chacon, MDPhiladelphia, PA 191341275735672
- Robert Davies, MDPhiladelphia, PA 191341285725671
- Camila Delgado, MD/PHDPhiladelphia, PA 191341053997585
- Zaida Hernandez, MDPhiladelphia, PA 191341609884675
- Howard Nesbitt, D.O.Philadelphia, PA 191341699730069
- Sky PrestowitzPhiladelphia, PA 191341831725837
- Daisy Rodriguez, M.D.Philadelphia, PA 191341891797015
- Palav Shah, DOPhiladelphia, PA 191341588928287
Common questions
What is Kristopher D. Ahn, M.D.'s NPI number?
Kristopher D. Ahn, M.D.'s National Provider Identifier (NPI) is 1073967451, issued on Apr 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Kristopher D. Ahn, M.D. located?
The NPPES record lists a practice address at 861 E Allegheny Ave Ste Msb 1134, Philadelphia, PA, 19134. Phone: (215) 302-3600. Providers update this record themselves, so call before visiting.
How can I verify Kristopher D. Ahn, M.D.'s license?
NPPES lists Pennsylvania license number MD470105, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kristopher D. Ahn, M.D. prescribe under Medicare Part D?
In 2024, Kristopher D. Ahn, M.D. had 2,937 Medicare Part D claims for 181 beneficiaries; 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.