Marissa B. Bothun, P.A.-C.
NPI 1942507207ActiveIndividual· Physician Assistant· Rockwall, TX
Physician Assistant (P.A.-C.) with Matthew D Barrows MD PA, practicing in Rockwall, Texas. Their prescriptions cost Medicare Part D more than their services did: $423,054 for 1,015 claims, against $167,366 paid for services in 2024. Janssen Biotech, Inc. was the largest of 23 companies reporting payments in 2025, $3,015 in all, mostly food and beverage.
Overview
| NPI | 1942507207 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C. |
| Sole proprietor | No |
| NPI issued | Feb 23, 2011 |
| Last updated in NPPES | Dec 8, 2025 |
| Certified by provider | Dec 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA07230 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 803 |
|---|---|
| Services billed | 5,286 across 38 procedure codes |
| Paid by Medicare | $167,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,015 · 1,085 30-day fills |
|---|---|
| Patients | 399 |
| Total drug cost | $423,054 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Matthew D Barrows MD PAMcKinney, TX · 23 clinicians
Industry payments (Open Payments)
- 2025$3,015 · 150 payments from 23 companies
- 2024$3,289 · 166 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $498.32 | 16 |
| Sun Pharmaceutical Industries Inc. | $445.80 | 19 |
| Regeneron Healthcare Solutions, Inc. | $322.69 | 13 |
| Ucb, Inc. | $309.61 | 15 |
| Galderma Laboratories, L.P. | $179.61 | 16 |
What the 2025 payments were for
- Food and Beverage$2,612 · 145 payments
- Education$402.97 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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