Timothy J. Sempowski, DO
NPI 1144213760ActiveIndividual· Anesthesiology· Chambersburg, PA
Anesthesiology (DO) in Chambersburg, Pennsylvania, trained at Philadelphia College of Osteopathic Medicine (class of 1991). Medicare paid $17,247 for services to 168 patients in 2024. Merck Sharp & Dohme LLC reported $26.37 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1144213760 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Aug 30, 2005 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | OS007856L | PA |
| Anesthesiology, Pain Medicine | 207LP2900X | OS007856L | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 168 |
|---|---|
| Services billed | 182 across 52 procedure codes |
| Paid by Medicare | $17,247 |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Anesthesiology |
| Secondary specialties | Hospitalist, Interventional Pain Management |
Medical group
- Wellspan Medical GroupEphrata, PA · 2,480 clinicians
Hospital affiliation
- Wellspan Chambersburg HospitalChambersburg, PA
Industry payments (Open Payments)
- 2025$26.37 · 1 payment from 1 company
- 2024$39.57 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $26.37 | 1 |
What the 2025 payments were for
- Food and Beverage$26.37 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 anesthesiologists in Chambersburg · All anesthesiologists in Pennsylvania