HOON CHANG MD
NPI 1457987364
Internal Medicine - Nephrology in Fairfax, VA
About Hoon Chang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOON CHANG MD (NPI 1457987364) is an individual nephrology provider in Fairfax, Virginia, licensed in Virginia (0101274833) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Other Identifiers 1
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
Hoon Chang Md 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 Hoon Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fairfax, VA 22033
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 19 clinicians in this Medicare group
Fairfax, VA 22033
- Reassigned Medicare billing, District of Columbia enrollment
- 2,492 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAInova Loudoun Hospital
Acute Care Hospitals · Leesburg, VAInova Fairfax Hospital
Acute Care Hospitals · Falls Church, VAInova Fair Oaks Hospital
Acute Care Hospitals · Fairfax, VASentara Northern Virginia Medical Center
Acute Care Hospitals · Woodbridge, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22033 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 2
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 Hoon Chang's NPI number?
The NPI number for Hoon Chang is 1457987364. It was assigned to this individual provider in the NPPES registry on March 23, 2020.
Where is Hoon Chang located?
Hoon Chang practices at 13135 Route 50 Ste 135, Fairfax, VA 22033. The listed phone number is (703) 961-0484.
What is Hoon Chang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Hoon Chang enrolled in Medicare?
Yes. Hoon Chang 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 Hoon Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hoon Chang reassigns Medicare benefits to 2 organizations: Nephrology Associates Of Northern Virginia, Inc (Fairfax, VA) and Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Fairfax, 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 Hoon Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hoon Chang affiliated with any hospitals?
According to CMS data, Hoon Chang is affiliated with Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital, Inova Fair Oaks Hospital and Sentara Northern Virginia Medical Center.
When was this NPI record last updated?
The NPPES record for Hoon Chang was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Hoon Chang, MD · NPI 1457987364
Nephrology physician in Fairfax, Virginia. Individual provider, active in the CMS NPPES registry since March 23, 2020.
## Identity
- **NPI:** 1457987364 (Entity type: Individual)
- **Enumerated:** March 23, 2020
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 0101274833 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 13135 ROUTE 50 STE 135, Fairfax, VA 22033-1907
- **Phone:** (703) 961-0484
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Nephrology Associates Of Northern Virginia, Inc (NPI 1174541049, Fairfax, VA); Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1215058326, Fairfax, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Georgetown University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** June 26, 2025
- **Other identifiers:** Other MT229280 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1457987364) · Data from the CMS NPPES public registry.