David Mark Zelechoski, M.D.
NPI 1356360085ActiveIndividual· Internal Medicine· Lewisburg, PA
Internal Medicine (M.D.) in Lewisburg, Pennsylvania, trained at Hahnemann University College of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $1,888,417 for 20,897 claims, against $170,119 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 22 companies reporting payments in 2025, $1,171 in all, mostly food and beverage.
Overview
| NPI | 1356360085 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Aug 5, 2026 |
| Certified by provider | Aug 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD039218E | PA |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | MD039218E | PA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD039218E | 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 - Internal Medicine (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,182 |
|---|---|
| Services billed | 5,082 across 42 procedure codes |
| Paid by Medicare | $170,119 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20,897 · 40,618 30-day fills |
|---|---|
| Patients | 1,041 |
| Total drug cost | $1,888,417 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Hahnemann University College of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Internal Medicine |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Wellspan Medical GroupEphrata, PA · 2,480 clinicians
- Evangelical Medical Services OrganizationLewisburg, PA · 248 clinicians
Hospital affiliations
- Geisinger Medical CenterDanville, PA
- Geisinger-Bloomsburg HospitalBloomsburg, PA
- Upmc WilliamsportWilliamsport, PA
- Wellspan Evangelical Community HospitalLewisburg, PA
Other facilities
- Geisinger Home HealthHome health agency · Danville, PA
- Residential Home Health of Nc PA, LLCHome health agency · Lewisburg, PA
- Tnt Health Services, LLCHome health agency · Sunbury, PA
- Vna Health SystemHome health agency · Shamokin, PA
- Wellspan Hospice ServicesHospice · Lewisburg, PA
- Buffalo Valley Lutheran VillagNursing home · Lewisburg, PA
Industry payments (Open Payments)
- 2025$1,171 · 61 payments from 22 companies
- 2024$1,843 · 91 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $239.59 | 13 |
| Pfizer Inc. | $110.33 | 6 |
| Lilly USA, LLC | $94.47 | 5 |
| Novo Nordisk Inc | $91.67 | 5 |
| Grifols USA, LLC | $69.01 | 3 |
What the 2025 payments were for
- Food and Beverage$1,171 · 61 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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