Gregory Hannabas, M.D.
NPI 1053792200ActiveIndividual· Family Medicine· Elma, WA
Family Medicine (M.D.) in Elma, Washington, trained at Texas Tech University Health Science Center School of Medicine (class of 2015). Part D covered 897 prescriptions written in 2024, 87% of them generic. Exact Sciences Corporation was the largest of 7 companies reporting payments in 2025, $155.17 in all, mostly food and beverage.
Overview
| NPI | 1053792200 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 13, 2015 |
| Last updated in NPPES | May 10, 2024 |
| Certified by provider | May 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD.MD.61537270 | WA |
| Family Medicine | 207Q00000X | S9307 | TX |
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 - Family Practice (TX); Practitioner - Family Practice (WA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 897 · 1,456 30-day fills |
|---|---|
| Patients | 233 |
| Total drug cost | $99,611 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Family Practice |
Medical group
- Grays Harbor County Public Hospital District No 1Elma, WA · 63 clinicians
Hospital affiliations
- Capital Medical CenterOlympia, WA
- Grays Harbor Community HospitalAberdeen, WA
- Providence Centralia HospitalCentralia, WA
- Providence St Peter HospitalOlympia, WA
- Summit Pacific Medical CenterElma, WA
Other facilities
- Assured Home Health and HospiceHome health agency · Centralia, WA
- Harbors Home Health / HospiceHome health agency · Hoquiam, WA
- Harbors Home Health and HospiceHospice · Hoquiam, WA
Industry payments (Open Payments)
- 2025$155.17 · 8 payments from 7 companies
- 2024$16.59 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $40.03 | 2 |
| Collegium Pharmaceutical, Inc. | $24.44 | 1 |
| Viatris Specialty LLC | $19.63 | 1 |
| Novo Nordisk Inc | $19.62 | 1 |
| Glaxosmithkline, LLC. | $18.06 | 1 |
What the 2025 payments were for
- Food and Beverage$155.17 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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