Louise Ross Wannamaker, MD
NPI 1366962144ActiveIndividual· Obstetrics & Gynecology· Summerville, SC
Obstetrics & Gynecology (MD) in Summerville, South Carolina, trained at Medical University of South Carolina College of Medicine (class of 2017). In 2024 Medicare paid $13,624 for 86 patients, and Part D covered 283 of their prescriptions, 85% of them generic. Astellas Pharma US Inc was the largest of 15 companies reporting payments in 2025, $804.09 in all, mostly food and beverage.
Overview
| NPI | 1366962144 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 22, 2017 |
| Last updated in NPPES | Jul 13, 2026 |
| Certified by provider | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 85710 | 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 | 86 |
|---|---|
| Services billed | 177 across 20 procedure codes |
| Paid by Medicare | $13,624 |
Part D prescriptions in 2024
| Prescriptions (claims) | 283 · 532 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $17,972 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Medical University of South Carolina College of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- Roper Saint Francis Physicians NetworkN Charleston, SC · 528 clinicians
Hospital affiliations
- Bon Secours-St Francis Xavier HospitalCharleston, SC
- Roper HospitalCharleston, SC
- Roper St Francis Hospital-Berkeley IncSummerville, SC
Industry payments (Open Payments)
- 2025$804.09 · 36 payments from 15 companies
- 2024$606.01 · 23 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $250.22 | 8 |
| Mayne Pharma Commercial LLC | $219.81 | 11 |
| Optumhealth Care Solutions, LLC | $51.95 | 3 |
| Millicent US Inc | $33.89 | 2 |
| Smith+nephew, Inc. | $33.62 | 2 |
What the 2025 payments were for
- Food and Beverage$804.09 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 OB-GYNs in Summerville · All OB-GYNs in South Carolina