Randy James Grellner, DO
NPI 1356364376ActiveIndividual· Family Medicine· Cushing, OK
Family Medicine (DO) in Cushing, Oklahoma, trained at Oklahoma State University College of Osteopathic Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $1,197,501 for 12,907 claims, against $192,202 paid for services in 2024. Abbvie Inc. was the largest of 18 companies reporting payments in 2025, $1,031 in all, mostly food and beverage.
Overview
| NPI | 1356364376 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | May 1, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 3663 | OK |
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 - Family Practice (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 600 |
|---|---|
| Services billed | 39,774 across 100 procedure codes |
| Paid by Medicare | $192,202 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,907 · 22,600 30-day fills |
|---|---|
| Patients | 761 |
| Total drug cost | $1,197,501 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Oklahoma State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Stillwater Medical Center AuthorityStillwater, OK · 153 clinicians
Hospital affiliations
- Hillcrest Hospital CushingCushing, OK
- O U Medical CenterOklahoma City, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Stillwater Medical CenterStillwater, OK
Other facilities
- Amedisys Home HealthHome health agency · Oklahoma City, OK
- Complete Home Health of Western OklahomaHome health agency · Tulsa, OK
- Genesis Home Health LLCHome health agency · Yale, OK
- Walker Companion Services, LLCHome health agency · Cushing, OK
Industry payments (Open Payments)
- 2025$1,031 · 62 payments from 18 companies
- 2024$1,412 · 89 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $158.57 | 16 |
| Axsome Therapeutics, Inc. | $114.52 | 6 |
| Astrazeneca Pharmaceuticals LP | $104.33 | 5 |
| Glaxosmithkline, LLC. | $100.44 | 6 |
| Pfizer Inc. | $96.40 | 6 |
What the 2025 payments were for
- Food and Beverage$1,031 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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