Melissa McCool Senn
NPI 1033735204ActiveIndividual· Physician Assistant· Columbia, SC
Physician Assistant with Carolina Dermatology Grp, practicing in Columbia, South Carolina. Their prescriptions cost Medicare Part D more than their services did: $95,034 for 280 claims, against $46,080 paid for services in 2024. Abbvie Inc. was the largest of 20 companies reporting payments in 2025, $4,226 in all, mostly food and beverage.
Overview
| NPI | 1033735204 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 23, 2020 |
| Last updated in NPPES | Nov 7, 2023 |
| Certified by provider | Nov 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA3575 | SC |
| Physician Assistant, Medical | 363AM0700X | PA3575 | 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 - Physician Assistant (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 272 |
|---|---|
| Services billed | 1,339 across 37 procedure codes |
| Paid by Medicare | $46,080 |
Part D prescriptions in 2024
| Prescriptions (claims) | 280 · 323 30-day fills |
|---|---|
| Patients | 113 |
| Total drug cost | $95,034 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Carolina Dermatology GrpColumbia, SC · 27 clinicians
Industry payments (Open Payments)
- 2025$4,226 · 203 payments from 20 companies
- 2024$2,632 · 135 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $662.19 | 37 |
| Ucb, Inc. | $605.32 | 17 |
| Regeneron Healthcare Solutions, Inc. | $565.59 | 25 |
| Incyte Corporation | $354.07 | 12 |
| Sun Pharmaceutical Industries Inc. | $269.27 | 11 |
What the 2025 payments were for
- Food and Beverage$3,962 · 200 payments
- Education$263.77 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 251 physician assistants in Columbia · All physician assistants in South Carolina