Mariaileen Sourwine, M.D.
NPI 1528227378ActiveIndividual· Internal Medicine· Arnold, MD
Internal Medicine (M.D.) in Arnold, Maryland, trained at University of Maryland School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $405,009 for 3,567 claims, against $175,088 paid for services in 2024. Lilly USA, LLC was the largest of 2 companies reporting payments in 2025, $42.76 in all, mostly food and beverage.
Overview
| NPI | 1528227378 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2008 |
| Last updated in NPPES | Dec 7, 2021 |
| Certified by provider | Dec 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D72591 | MD |
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 (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 351 |
|---|---|
| Services billed | 3,094 across 56 procedure codes |
| Paid by Medicare | $175,088 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,567 · 8,768 30-day fills |
|---|---|
| Patients | 292 |
| Total drug cost | $405,009 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Privia Care Center LLCArnold, MD · 287 clinicians
Hospital affiliation
- Luminis Health Anne Arundel Medical Center, IncAnnapolis, MD
Other facilities
- Bayada Home Health Care, Inc.Home health agency · Towson, MD
- Hospice of the Chesapeake, Inc.Hospice · Pasadena, MD
Industry payments (Open Payments)
- 2025$42.76 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $22.23 | 1 |
| Resmed Corp | $20.53 | 1 |
What the 2025 payments were for
- Food and Beverage$42.76 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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