Mary Ahn, MD
Mary Ahn, MD is a General Surgery in Winfield, Illinois. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1995, 31 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois.
- Years since qualifying
- 31
- Trained at
- Loyola University of Chicago, Stritch School of Medicine
- Licensed in
- IL
- In the registry since
- 2006
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
25 N Winfield Rd Ste 2202Winfield, IL 60190-1379
Phone: (630) 307-7799
Fax: (630) 307-2277
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Additional practice locations (2)
- 304 Randall Rd, Geneva, IL 60134-4200 — (630) 307-7799
- 4405 Weaver Pkwy, Warrenville, IL 60555-3269 — (630) 307-7799
Specialties & licences
| Surgery Physician (primary) | Taxonomy 208600000X · Licence 036-096682 (IL) |
|---|
Record details
| NPI number | 1407809056 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Female |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | May 17, 2006 |
| Last updated in NPPES | November 13, 2025 |
| Certification date | November 13, 2025 |
| Mailing address | 25 N Winfield Rd Ste 2202, Winfield, IL 60190-1379 |
Medicare enrollment
| Medicare specialty | GENERAL SURGERY |
|---|---|
| Medical school | LOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE |
| Graduated | 1995 (31 years in practice) |
| Group practice | Northwestern Medical Faculty Foundation — 4394 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Practice locations | 2 on file with Medicare |
Other providers in Winfield
-
Associated General Surgeons, SC
25 N Winfield Rd Ste 410, Winfield, IL 60190-1237 · (630) 665-2101
-
Benjamin Chaney
25 N Winfield Rd, Winfield, IL 60190-1379 · (630) 933-6675
-
Dr. David Owen Woodard, MD
25 N Winfield Rd Ste 410, Winfield, IL 60190 · (630) 665-2101