Marsha Nalini Mather, MD
NPI 1831772623ActiveIndividual· Internal Medicine· Hyannis, MA
Internal Medicine (MD) with Physicians of Cape Cod Hospital and 1 other group, practicing in Hyannis, Massachusetts. In 2024 Medicare paid $57,040 for 118 patients, and Part D covered 583 of their prescriptions, 86% of them generic. Stryker Corporation was the largest of 2 companies reporting payments in 2025, $274.99 in all, mostly food and beverage. Lists Cape Cod Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1831772623 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 30, 2021 |
| Last updated in NPPES | Jan 8, 2025 |
| Certified by provider | Jan 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 1018443 | 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 | 118 |
|---|---|
| Services billed | 2,599 across 38 procedure codes |
| Paid by Medicare | $57,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 583 · 1,117 30-day fills |
|---|---|
| Patients | 176 |
| Total drug cost | $49,452 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Physicians of Cape Cod HospitalHyannis, MA · 334 clinicians
- Medical Affiliates of Cape Cod IncHyannis, MA · 229 clinicians
Hospital affiliations
- Cape Cod HospitalHyannis, MA
- Falmouth HospitalFalmouth, MA
- Massachusetts General HospitalBoston, MA
Other facilities
- Bayada Home Health Care , IncHome health agency · Hyannis, MA
- Vna of Cape CodHome health agency · South Dennis, MA
- Spaulding Rehabilitation Hospital - Cape CodInpatient rehabilitation facility · East Sandwich, MA
Industry payments (Open Payments)
- 2025$274.99 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $150.00 | 1 |
| Lilly USA, LLC | $124.99 | 1 |
What the 2025 payments were for
- Food and Beverage$274.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 67 internal medicine physicians in Hyannis · All internal medicine physicians in Massachusetts