DR. PETER JUHEE AHN M.D.
NPI 1063455095
Radiology - Diagnostic Radiology in Manassas, VA
About Dr. Peter Juhee Ahn M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER JUHEE AHN M.D. (NPI 1063455095) is an individual diagnostic radiology provider in Manassas, Virginia, licensed in Virginia (0101245137) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Medstar Saint Mary's Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 2
Accepted Insurance
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
Dr. Peter Juhee Ahn M.d. 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 Reassignments
4Medicare enrollment records show Peter Ahn reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1376887844 (Maryland)
- 3,530 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 178 clinicians in this Medicare group
Hollywood, MD 20636
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 180 clinicians in this Medicare group
Charlottesville, VA 22911
- Reassigned Medicare billing, Virginia enrollment
- 2,820 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 23
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Saint Mary's Hospital
Acute Care Hospitals · Leonardtown, MDMedstar Southern Maryland Hospital Center
Acute Care Hospitals · Clinton, MDSentara Northern Virginia Medical Center
Acute Care Hospitals · Woodbridge, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Peter Ahn's NPI number?
The NPI number for Peter Ahn is 1063455095. It was assigned to this individual provider in the NPPES registry on June 14, 2006.
Where is Peter Ahn located?
Peter Ahn practices at 8700 Sudley Rd, Manassas, VA 20110. The listed phone number is (703) 369-8073.
What is Peter Ahn's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Peter Ahn enrolled in Medicare?
Yes. Peter 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 organizations bill Medicare for Peter Ahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Ahn reassigns Medicare benefits to 4 organizations: Medstar Medical Group II LLC (Washington, DC), Medstar Medical Group Radiology, LLC (Washington, DC), Medstar Medical Group - Southern Maryland LLC (Hollywood, MD) and University Of Virginia Physicians Group (Charlottesville, VA). Each 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 Peter Ahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Ahn accept?
Health plans from Blue Cross and Blue Shield of Texas list Peter Ahn as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Peter Ahn affiliated with any hospitals?
According to CMS data, Peter Ahn is affiliated with Medstar Saint Mary's Hospital, Medstar Southern Maryland Hospital Center and Sentara Northern Virginia Medical Center.
When was this NPI record last updated?
The NPPES record for Peter Ahn was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.