DR. SUN-YOUNG AHN MD
NPI 1164676375
Pediatrics in Washington, DC
About Dr. Sun-young Ahn Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SUN-YOUNG AHN MD (NPI 1164676375) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (MD041426) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Sun-young Ahn 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 Reassignment
Medicare enrollment records show Sun-young Ahn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20010 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.
WASHINGTON, DC 20010
WASHINGTON, DC 20010
WASHINGTON, DC 20010
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 Sun-young Ahn's NPI number?
The NPI number for Sun-young Ahn is 1164676375. It was assigned to this individual provider in the NPPES registry on November 14, 2008.
Where is Sun-young Ahn located?
Sun-young Ahn practices at 111 Michigan Ave NW, Washington, DC 20010. The listed phone number is (202) 476-5058.
What is Sun-young Ahn's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Sun-young Ahn enrolled in Medicare?
Yes. Sun-young 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 Sun-young Ahn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sun-young Ahn reassigns Medicare benefits to Children's Hospital (Washington, DC). 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 Sun-young 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 Sun-young Ahn was last updated on August 22, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Sun-Young Ahn, MD · NPI 1164676375
Pediatrics physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since November 14, 2008.
## Identity
- **NPI:** 1164676375 (Entity type: Individual)
- **Enumerated:** November 14, 2008
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** MD041426 (District of Columbia)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 MICHIGAN AVE NW, Washington, DC 20010-2916
- **Phone:** (202) 476-5058 · **Fax:** (202) 476-3475
## 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:** Children's Hospital (NPI 1780800128, Washington, DC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** August 22, 2013
- **Other identifiers:** Medicaid 1516164 (TN)
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Source: [NPI Profile](https://npiprofile.com/npi/1164676375) · Data from the CMS NPPES public registry.