David R. Giammar, M.D.
NPI 1154307858ActiveIndividual· Colon & Rectal Surgery· Hilliard, OH
Colon & Rectal Surgery (M.D.) in Hilliard, Ohio, trained at Northeastern Ohio University College of Medicine (class of 1996). In 2024 Medicare paid $65,747 for 214 patients, and Part D covered 207 of their prescriptions, 89% of them generic. Glaxosmithkline, LLC. was the largest of 4 companies reporting payments in 2025, $173.50 in all, mostly food and beverage.
Overview
| NPI | 1154307858 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 15, 2005 |
| Last updated in NPPES | Apr 16, 2026 |
| Certified by provider | Apr 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 35.077358 | OH |
| Colon & Rectal Surgery | 208C00000X | 4301102844 | MI |
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 - General Surgery (AK); Practitioner - Colorectal Surgery (Proctology) (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 214 |
|---|---|
| Services billed | 546 across 87 procedure codes |
| Paid by Medicare | $65,747 |
Part D prescriptions in 2024
| Prescriptions (claims) | 207 · 270 30-day fills |
|---|---|
| Patients | 78 |
| Total drug cost | $18,184 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Northeastern Ohio University College of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Colorectal Surgery (Proctology) |
| Secondary specialties | General Surgery |
Medical groups
- Ohio Specialty Physicians CorporationCanton, OH · 65 clinicians
- Jtdm Family Practice LLCSaint Marys, OH · 47 clinicians
- Prime Healthcare Foundation - Coshocton, LLCCoshocton, OH · 27 clinicians
Hospital affiliations
- Aultman HospitalCanton, OH
- Coshocton Regional Medical CenterCoshocton, OH
- Grand Lake Health SystemSaint Marys, OH
- Mercer County Joint Township Community HospitalColdwater, OH
- Riverside Methodist HospitalColumbus, OH
Industry payments (Open Payments)
- 2025$173.50 · 4 payments from 4 companies
- 2024$110.71 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $67.34 | 1 |
| Medtronic, Inc. | $65.62 | 1 |
| Vertex Pharmaceuticals Incorporated | $25.84 | 1 |
| Cumberland Pharmaceuticals, Inc. | $14.70 | 1 |
What the 2025 payments were for
- Food and Beverage$173.50 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other colorectal surgeons in Hilliard
- 1386954899