Mark W. Leach, M.D.
NPI 1619932936ActiveIndividual· Family Medicine· Palmyra, PA
Family Medicine (M.D.) in Palmyra, Pennsylvania, trained at Pennsylvania State University College of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $1,366,120 for 14,178 claims, against $89,562 paid for services in 2024. Shionogi Inc was the largest of 22 companies reporting payments in 2025, $2,754 in all, mostly food and beverage.
Overview
| NPI | 1619932936 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2006 |
| Last updated in NPPES | Nov 30, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD066209L | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 381 |
|---|---|
| Services billed | 2,265 across 48 procedure codes |
| Paid by Medicare | $89,562 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,178 · 28,898 30-day fills |
|---|---|
| Patients | 1,049 |
| Total drug cost | $1,366,120 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Family Practice |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Lebanon Valley Family Medicine IncPalmyra, PA · 9 clinicians
Hospital affiliations
- Milton S Hershey Medical CenterHershey, PA
- Upmc Pinnacle HospitalsHarrisburg, PA
- Wellspan Good Samaritan HospitalLebanon, PA
Other facilities
- Accentcare Home Health of Central PennsylvaniaHome health agency · Elizabethtown, PA
- Residential Home Health of Carlisle, LLCHome health agency · Mechanicsburg, PA
- Wellspan Vna Home CareHome health agency · York, PA
Industry payments (Open Payments)
- 2025$2,754 · 90 payments from 22 companies
- 2024$1,316 · 96 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Shionogi Inc | $1,138 | 1 |
| Glaxosmithkline, LLC. | $253.73 | 18 |
| Astrazeneca Pharmaceuticals LP | $216.60 | 19 |
| Lilly USA, LLC | $170.90 | 8 |
| Astellas Pharma US Inc | $156.65 | 3 |
What the 2025 payments were for
- Food and Beverage$1,518 · 88 payments
- Consulting Fee$1,138 · 1 payment
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 family medicine physicians in Palmyra · All family medicine physicians in Pennsylvania