John Robert Guzek, MD
NPI 1861460545ActiveIndividual· Internal Medicine· Scranton, PA
Internal Medicine (MD) in Scranton, Pennsylvania, trained at University of Pittsburgh School of Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $649,305 for 3,540 claims, against $40,416 paid for services in 2024. Abbvie Inc. was the largest of 30 companies reporting payments in 2025, $2,694 in all, mostly food and beverage.
Overview
| NPI | 1861460545 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 9, 2006 |
| Last updated in NPPES | Jan 8, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD022387E | PA |
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 - Hospitalist (PA); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 820 across 24 procedure codes |
| Paid by Medicare | $40,416 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,540 · 5,788 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $649,305 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Geisinger ClinicDanville, PA · 3,467 clinicians
Hospital affiliations
- Geisinger Wyoming Valley Medical CenterWilkes Barre, PA
- Geisinger-Community Medical CenterScranton, PA
Other facilities
- Traditional Home Health CareHome health agency · Dunmore, PA
Industry payments (Open Payments)
- 2025$2,694 · 160 payments from 30 companies
- 2024$2,612 · 166 payments from 31 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $479.76 | 24 |
| Novo Nordisk Inc | $465.78 | 30 |
| Astrazeneca Pharmaceuticals LP | $208.08 | 17 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $165.56 | 11 |
| Amgen Inc. | $148.78 | 10 |
What the 2025 payments were for
- Food and Beverage$2,694 · 160 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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