Matthew W. Parker, M.D.
NPI 1386897817ActiveIndividual· Internal Medicine, Cardiovascular Disease· Worcester, MA
Internal Medicine, Cardiovascular Disease (M.D.) in Worcester, Massachusetts, trained at Georgetown University School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $267,019 for 1,425 claims, against $119,103 paid for services in 2024. Johnson & Johnson Health Care Systems Inc. was the largest of 3 companies reporting payments in 2025, $82.77 in all, mostly food and beverage.
Overview
| NPI | 1386897817 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 28, 2008 |
| Last updated in NPPES | Jul 2, 2025 |
| Certified by provider | Jul 2, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 235308 | MA |
| Internal Medicine | 207R00000X | 235308 | MA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 048896 | CT |
| Nuclear Medicine, Nuclear Cardiology | 207UN0901X | 235308 | 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 - Cardiovascular Disease (Cardiology) (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 3,701 |
|---|---|
| Services billed | 5,321 across 34 procedure codes |
| Paid by Medicare | $119,103 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,425 · 3,829 30-day fills |
|---|---|
| Patients | 262 |
| Total drug cost | $267,019 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
Hospital affiliations
- Milford Regional Medical CenterMilford, MA
- St Vincent HospitalWorcester, MA
- Umass Memorial Health - Harrington HospitalSouthbridge, MA
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$82.77 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Johnson & Johnson Health Care Systems Inc. | $37.62 | 1 |
| Cvrx, Inc. | $26.72 | 1 |
| Abbott Laboratories | $18.43 | 1 |
What the 2025 payments were for
- Food and Beverage$82.77 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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