Gregory J. Ferenz, D.O.
NPI 1568696243ActiveIndividual· Psychiatry & Neurology, Neurology· Bend, OR
Psychiatry & Neurology, Neurology (D.O.) in Bend, Oregon, trained at Philadelphia College of Osteopathic Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $371,843 for 2,434 claims, against $121,495 paid for services in 2024. Tg Therapeutics, Inc. was the largest of 2 companies reporting payments in 2025, $35.58 in all, mostly food and beverage.
Overview
| NPI | 1568696243 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | May 8, 2009 |
| Last updated in NPPES | May 19, 2025 |
| Certified by provider | May 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | DO162367 | OR |
| Psychiatry & Neurology, Neurology | 2084N0400X | OT012388 | PA |
| Psychiatry & Neurology, Clinical Neurophysiology | 2084N0600X | DR.0056957 | CO |
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 - Neurology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 344 |
|---|---|
| Services billed | 1,767 across 26 procedure codes |
| Paid by Medicare | $121,495 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,434 · 2,996 30-day fills |
|---|---|
| Patients | 296 |
| Total drug cost | $371,843 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Ohsu Hospital and ClinicsPortland, OR
- St Charles Medical Center - BendBend, OR
- St Charles Medical Center PrinevillePrineville, OR
Industry payments (Open Payments)
- 2025$35.58 · 2 payments from 2 companies
- 2024$214.42 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $22.07 | 1 |
| Abbvie Inc. | $13.51 | 1 |
What the 2025 payments were for
- Food and Beverage$35.58 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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