Marissa C. Grant, DO
NPI 1134784796ActiveIndividual· Anesthesiology· Columbus, OH
Anesthesiology (DO) in Columbus, Ohio, trained at Arizona College of Osteopathic Medicine Mid Western University (class of 2019). Medicare paid $5,495 for services to 44 patients in 2024. Heron Therapeutics, Inc. reported $16.77 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1134784796 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 8, 2019 |
| Last updated in NPPES | Mar 18, 2026 |
| Certified by provider | Mar 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 34.016761.MIL | OH |
| General Practice | 208D00000X | 0102206367 | VA |
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 | 44 |
|---|---|
| Services billed | 55 across 28 procedure codes |
| Paid by Medicare | $5,495 |
Education and affiliations
| Medical school | Arizona College of Osteopathic Medicine Mid Western University |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Anesthesiology |
Medical groups
- Osu Observation Medicine, LLCColumbus, OH · 436 clinicians
- Phs Anesthesia Billing, LLCMiddletown, OH · 249 clinicians
Hospital affiliation
- Miami Valley HospitalDayton, OH
Industry payments (Open Payments)
- 2025$16.77 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heron Therapeutics, Inc. | $16.77 | 1 |
What the 2025 payments were for
- Food and Beverage$16.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 437 anesthesiologists in Columbus · All anesthesiologists in Ohio