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Diagnostic Radiology

Gina Kim-Ahn, MD

Works at hospitals in East Norriton, PA · Philadelphia, PA · Clinton, MD … · Pennsylvania, Maryland, District of Columbia, New Jersey

Summary

Dr. Gina Kim-Ahn, MD is a radiologist at 12 Medstar Blvd, Bel Air, MD 21015. Phone: (443) 625-5430. Accepts Medicare assignment. In 2024, Gina Kim-Ahn had 721 Original Medicare patients and 3,530 services. NPI 1245217835. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Gina Kim-Ahn, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Gina Kim-Ahn accept Medicare assignment?
Yes. Medicare's clinician data says Gina Kim-Ahn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gina Kim-Ahn see?
In 2024, CMS data shows 721 Original Medicare patients and 3,530 services for Gina Kim-Ahn. This counts Original Medicare only and measures volume, not quality.
What is Gina Kim-Ahn's NPI number?
1245217835. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Gina Kim-Ahn, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients721
Services billed to Medicare3,530
Different services or procedures42
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Screening 3d breast mammography (77063)367 services
  2. Screening mammography (77067)366 services
  3. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)278 services
  4. Diagnostic mammography of both breasts (77066)183 services
  5. Limited ultrasound scan of 1 breast (76642)167 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis46%
  • Diabetes45%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)36%
  • Chronic kidney disease28%

Hospitals where Gina Kim-Ahn works

Medicare's Facility Affiliation Data lists Gina Kim-Ahn at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Gina Kim-Ahn is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Gina Kim-Ahn as a member of these groups (CMS data updated October 2, 2026).

  • MedStar Medical Group II LLC3,767 clinicians in the group
  • Einstein Practice Plan Inc794 clinicians in the group
  • Physician Imaging of Washington Hospital Center LLC104 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Maryland →

Other radiologists in Bel Air

Clinicians with the same Medicare primary specialty in Bel Air, MD — not a recommendation.

All radiologists in Bel Air →

Other clinicians in MedStar Medical Group II LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniformed Services Uhs Fe Hebert School Of Med
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245217835
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians