JOONG MO AHN MD PHD
NPI 1851389738
Radiology - Diagnostic Radiology in Hershey, PA
About Joong Mo Ahn Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOONG MO AHN MD PHD (NPI 1851389738) is an individual diagnostic radiology provider in Hershey, Pennsylvania, licensed in Pennsylvania (MD444420) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Penn State Health Holy Spirit Medical Center, and maintains a secondary practice location in Iowa City.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Joong Mo Ahn Md Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Joong Ahn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hershey, PA 17033
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,216 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 17
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Penn State Health Holy Spirit Medical Center
Acute Care Hospitals · Camp Hill, PAWellspan York Hospital
Acute Care Hospitals · York, PAWellspan Good Samaritan Hospital
Acute Care Hospitals · Lebanon, PAWellspan Chambersburg Hospital
Acute Care Hospitals · Chambersburg, PAMilton S Hershey Medical Center
Acute Care Hospitals · Hershey, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 17033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HERSHEY, PA 17033
HERSHEY, PA 17033
HERSHEY, PA 17033
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Joong Ahn's NPI number?
The NPI number for Joong Ahn is 1851389738. It was assigned to this individual provider in the NPPES registry on October 13, 2005.
Where is Joong Ahn located?
Joong Ahn practices at 500 University Dr, Hershey, PA 17033. The listed phone number is (717) 531-6597.
What is Joong Ahn's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Joong Ahn enrolled in Medicare?
Yes. Joong Ahn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Joong Ahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joong Ahn reassigns Medicare benefits to The Milton S Hershey Medical Center Physicians Group (Hershey, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joong Ahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Joong Ahn affiliated with any hospitals?
According to CMS data, Joong Ahn is affiliated with Penn State Health Holy Spirit Medical Center, Wellspan York Hospital, Wellspan Good Samaritan Hospital, Wellspan Chambersburg Hospital and Milton S Hershey Medical Center.
When was this NPI record last updated?
The NPPES record for Joong Ahn was last updated on August 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.