Christine Sunjung Ahn, MD
NPI 1336307461ActiveIndividual· Emergency Medicine· Stony Brook, NY
Emergency Medicine (MD) in Stony Brook, New York, licensed in NY, with an NPI issued in May 2008. Mostly services rather than prescriptions: Medicare paid $78,216 for 510 patients in 2024, with only 15 Part D claims. Grifols USA, LLC reported $20.37 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1336307461 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 27, 2008 |
| Last updated in NPPES | Jul 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 257406 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 510 |
|---|---|
| Services billed | 597 across 27 procedure codes |
| Paid by Medicare | $78,216 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 15 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $58.31 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$20.37 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $20.37 | 1 |
What the 2025 payments were for
- Food and Beverage$20.37 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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