Dariusz Kostrzewa, MD
NPI 1154317600ActiveIndividual· Family Medicine· Narragansett, RI
Family Medicine (MD) with Coastal Medical Physicians Inc and 1 other group, practicing in Narragansett, Rhode Island. Their prescriptions cost Medicare Part D more than their services did: $450,272 for 7,508 claims, against $37,479 paid for services in 2024. Tonix Medicines, Inc. reported $14.55 in payments in 2025, mostly food and beverage. Lists Newport Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1154317600 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 21, 2005 |
| Last updated in NPPES | Apr 4, 2024 |
| Certified by provider | Apr 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD11435 | RI |
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 (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 297 |
|---|---|
| Services billed | 1,024 across 41 procedure codes |
| Paid by Medicare | $37,479 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,508 · 16,325 30-day fills |
|---|---|
| Patients | 651 |
| Total drug cost | $450,272 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Coastal Medical Physicians IncWarwick, RI · 225 clinicians
- Alaga Health LLCNarragansett, RI · 2 clinicians
Hospital affiliations
- Newport HospitalNewport, RI
- Rhode Island HospitalProvidence, RI
- South County Hospital IncWakefield, RI
- The Miriam HospitalProvidence, RI
Other facilities
- South County Home HealthHome health agency · Wakefield, RI
- Hopehealth Hospice & Palliative CareHospice · Providence, RI
Industry payments (Open Payments)
- 2025$14.55 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tonix Medicines, Inc. | $14.55 | 1 |
What the 2025 payments were for
- Food and Beverage$14.55 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Narragansett
- 1134129257
- 1265433908
- 1548474778
- 1306365812
- 1306816251
- 1700071271
- 1720959596
- 1851467161