Heather Wark, MD
NPI 1063422749ActiveIndividual· Internal Medicine· Northampton, MA
Internal Medicine (MD) in Northampton, Massachusetts, trained at University of Vermont College of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $96,787 for 2,019 claims, against $51,526 paid for services in 2024.
Overview
| NPI | 1063422749 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 8, 2006 |
| Last updated in NPPES | Apr 9, 2021 |
| Certified by provider | Apr 9, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 76508 | MA |
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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 143 |
|---|---|
| Services billed | 757 across 11 procedure codes |
| Paid by Medicare | $51,526 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,019 · 2,031 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $96,787 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
Medical group
- Heather Wark MD LLCNorthampton, MA · 3 clinicians
Hospital affiliation
- Cooley Dickinson Hospital Inc,theNorthampton, MA
Other facilities
- Ascend HospiceHospice · Worcester, MA
- Care One at NorthamptonNursing home · Northampton, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 internal medicine physicians in Northampton · All internal medicine physicians in Massachusetts