Catherine Ahn, MD
NPI 1245308022ActiveIndividual· Anesthesiology· Arlington Heights, IL
Anesthesiology (MD) with Northwestern Medical Faculty Foundation and 3 other groups, practicing in Arlington Heights, Illinois. Medicare paid $24,554 for services to 153 patients in 2024. Pacira Pharmaceuticals Incorporated reported $44.88 in payments in 2025, mostly food and beverage. Lists Advocate Lutheran General Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1245308022 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 1, 2006 |
| Last updated in NPPES | Mar 3, 2026 |
| Certified by provider | Mar 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 036113618 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 153 |
|---|---|
| Services billed | 192 across 40 procedure codes |
| Paid by Medicare | $24,554 |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
- City of Hope Medical Group of Illinois PLLCZion, IL · 129 clinicians
- Midwest Anesthesia Partners LLCHinsdale, IL · 119 clinicians
Hospital affiliations
- Advocate Lutheran General HospitalPark Ridge, IL
- Midwestern Region Med Center, IncZion, IL
Industry payments (Open Payments)
- 2025$44.88 · 1 payment from 1 company
- 2024$121.81 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pacira Pharmaceuticals Incorporated | $44.88 | 1 |
What the 2025 payments were for
- Food and Beverage$44.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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