William Carter Heppenstall
NPI 1023558400ActiveIndividual· Internal Medicine· Philadelphia, PA
Internal Medicine in Philadelphia, Pennsylvania, trained at Philadelphia College of Osteopathic Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $3,326,578 for 23,462 claims, against $48,701 paid for services in 2024. Abbvie Inc. was the largest of 22 companies reporting payments in 2025, $3,244 in all, mostly food and beverage.
Overview
| NPI | 1023558400 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Mar 3, 2017 |
| Last updated in NPPES | Jul 16, 2021 |
| Certified by provider | Jul 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | OS020531 | PA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | 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 | 183 |
|---|---|
| Services billed | 544 across 15 procedure codes |
| Paid by Medicare | $48,701 |
Part D prescriptions in 2024
| Prescriptions (claims) | 23,462 · 43,410 30-day fills |
|---|---|
| Patients | 908 |
| Total drug cost | $3,326,578 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
Medical group
- Einstein Community Health Associates IncPhiladelphia, PA · 224 clinicians
Hospital affiliation
- Jefferson Einstein Philadelphia HospitalPhiladelphia, PA
Other facilities
- Mercy Home HealthHome health agency · Newtown, PA
Industry payments (Open Payments)
- 2025$3,244 · 170 payments from 22 companies
- 2024$3,715 · 217 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $669.77 | 39 |
| Pfizer Inc. | $332.38 | 17 |
| Novo Nordisk Inc | $300.23 | 13 |
| Astrazeneca Pharmaceuticals LP | $223.74 | 21 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $196.59 | 10 |
What the 2025 payments were for
- Food and Beverage$3,244 · 170 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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