Mark A. Stonehill, M.D.
NPI 1740267335ActiveIndividual· Anesthesiology· Marietta, OH
Anesthesiology (M.D.) in Marietta, Ohio, trained at Indiana University School of Medicine (class of 2001). Medicare paid $17,914 for services to 194 patients in 2024. Merck Sharp & Dohme LLC reported $21.53 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1740267335 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 27, 2005 |
| Last updated in NPPES | Oct 26, 2026 |
| Certified by provider | Oct 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 35099209 | OH |
| Anesthesiology | 207L00000X | 1060912 | IN |
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 (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 221 across 54 procedure codes |
| Paid by Medicare | $17,914 |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Anesthesiology |
Medical group
- Marietta Memorial HospitalMarietta, OH · 392 clinicians
Hospital affiliation
- Marietta Memorial HospitalMarietta, OH
Industry payments (Open Payments)
- 2025$21.53 · 1 payment from 1 company
- 2024$17.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $21.53 | 1 |
What the 2025 payments were for
- Food and Beverage$21.53 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 anesthesiologists in Marietta · All anesthesiologists in Ohio