Mark G. Griffin, MD
NPI 1164416251ActiveIndividual· Specialist· Lincoln, NE
Specialist (MD) in Lincoln, Nebraska, trained at University of Missouri, Kansas City, School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $899,094 for 1,695 claims, against $365,966 paid for services in 2024. Janssen Biotech, Inc. was the largest of 15 companies reporting payments in 2025, $1,029 in all, mostly food and beverage.
Overview
| NPI | 1164416251 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 6, 2005 |
| Last updated in NPPES | Sep 18, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 19772 | NE |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 834 |
|---|---|
| Services billed | 11,429 across 68 procedure codes |
| Paid by Medicare | $365,966 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,695 · 2,547 30-day fills |
|---|---|
| Patients | 749 |
| Total drug cost | $899,094 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Missouri, Kansas City, School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Gastroenterology |
Medical group
- Gastroenterology Specialties PCLincoln, NE · 51 clinicians
Hospital affiliations
- Bryan Medical CenterLincoln, NE
- Chi Health St. ElizabethLincoln, NE
- Columbus Community Hospital, IncColumbus, NE
- Memorial Health Care SystemsSeward, NE
- The Nebraska Medical CenterOmaha, NE
Industry payments (Open Payments)
- 2025$1,029 · 47 payments from 15 companies
- 2024$988.05 · 42 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $261.60 | 19 |
| Genzyme Corporation | $145.43 | 3 |
| Celltrion USA Inc. | $140.24 | 2 |
| Abbvie Inc. | $108.00 | 5 |
| Gilead Sciences, Inc. | $81.42 | 3 |
What the 2025 payments were for
- Food and Beverage$1,029 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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