Quick answers
- Where does Jiyong Ahn see patients?
- Medicare's clinician data lists 4 practice locations, including Roslyn Heights, NY, Downers Grove, IL and Versailles, KY. Call before your visit to confirm the address.
- What is Jiyong Ahn's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also General Surgery.
- Does Jiyong Ahn accept Medicare assignment?
- Yes. Medicare's clinician data says Jiyong Ahn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is Jiyong Ahn's NPI number?
- 1841298833. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jiyong Ahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 125 Mineola Ave, Suite 200Roslyn Heights, NY 11577
- 2001 Butterfield Rd, Suite 300Downers Grove, IL 60515
- 314 Furlong TrceVersailles, KY 40383
- 33 Church Hill RdNewtown, CT 06470
Specialties
- Vascular Surgeryprimary
- General Surgeryalso
Other vascular surgeons in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841298833 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians