HONGJOON AHN MOTR/L
NPI 1023731486
Occupational Therapist in Oakton, VA
About Hongjoon Ahn Motr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HONGJOON AHN MOTR/L (NPI 1023731486) is an individual occupational therapist in Oakton, Virginia, licensed in Virginia (0119006495) and active in the NPI registry since September 2022. He is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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
Hongjoon Ahn Motr/l 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
2Medicare enrollment records show Hongjoon Ahn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oakton, VA 22124
- Reassigned Medicare billing, District of Columbia enrollment
North Riverside, IL 60546
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 104 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 4
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.
Other Providers at the Same Location NPPES
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 Hongjoon Ahn's NPI number?
The NPI number for Hongjoon Ahn is 1023731486. It was assigned to this individual provider in the NPPES registry on September 21, 2022.
Where is Hongjoon Ahn located?
Hongjoon Ahn practices at 10346 Southam Ln, Oakton, VA 22124. The listed phone number is (571) 432-7220.
What is Hongjoon Ahn's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Hongjoon Ahn enrolled in Medicare?
Yes. Hongjoon 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 Hongjoon Ahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hongjoon Ahn reassigns Medicare benefits to 2 organizations: Hongjoon Occupational Therapy (Oakton, VA) and Comprehensive Therapeutics Ltd (North Riverside, IL). 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 Hongjoon Ahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Hongjoon Ahn was last updated on September 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.