Howard S. An, MD
NPI 1255310157ActiveIndividual· Orthopaedic Surgery, Orthopaedic Surgery of the Spine· Chicago, IL
Orthopaedic Surgery, Orthopaedic Surgery of the Spine (MD) in Chicago, Illinois, licensed in IL, with an NPI issued in January 2006. 118 Medicare patients in 2024, $50,904 paid; all of their 178 Part D prescriptions were generic. Medtronic, Inc. reported $38.74 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1255310157 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 10, 2006 |
| Last updated in NPPES | Sep 19, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Orthopaedic Surgery of the Spine Primary | 207XS0117X | 036096491 | 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 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 - Orthopedic Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 331 across 43 procedure codes |
| Paid by Medicare | $50,904 |
Part D prescriptions in 2024
| Prescriptions (claims) | 178 · 186 30-day fills |
|---|---|
| Patients | 69 |
| Total drug cost | $871.20 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$38.74 · 1 payment from 1 company
- 2024$121.65 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $38.74 | 1 |
What the 2025 payments were for
- Food and Beverage$38.74 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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