Mary Darcy Slizewski, M.D.
NPI 1053750596ActiveIndividual· Obstetrics & Gynecology· Greenville, SC
Obstetrics & Gynecology (M.D.) in Greenville, South Carolina, trained at Medical University of South Carolina College of Medicine (class of 2013). 25 Medicare patients in 2024, $3,137 paid; nearly all of their 69 Part D prescriptions were generic (96%). Sage Therapeutics, LLC was the largest of 3 companies reporting payments in 2025, $66.56 in all, mostly food and beverage.
Overview
| NPI | 1053750596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 18, 2013 |
| Last updated in NPPES | Jun 12, 2021 |
| Certified by provider | Jun 12, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 35758 | SC |
| Obstetrics & Gynecology | 207V00000X | LL35758 | SC |
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 - Obstetrics/Gynecology (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 48 across 15 procedure codes |
| Paid by Medicare | $3,137 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69 · 104 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $3,082 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Prisma Health University Medical GroupGreenville, SC · 2,493 clinicians
Hospital affiliations
- Prisma Health Patewood HospitalGreenville, SC
- Prisma Health Greenville Memorial HospitalGreenville, SC
Industry payments (Open Payments)
- 2025$66.56 · 3 payments from 3 companies
- 2024$37.74 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sage Therapeutics, LLC | $24.98 | 1 |
| Becton, Dickinson and Company | $24.66 | 1 |
| Optumhealth Care Solutions, LLC | $16.92 | 1 |
What the 2025 payments were for
- Food and Beverage$66.56 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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