Mariel Bagley, MD
NPI 1235622986ActiveIndividual· Family Medicine· San Marcos, TX
Family Medicine (MD) in San Marcos, Texas, trained at Texas A & M University System, Hsc, College of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $218,970 for 1,908 claims, against $42,951 paid for services in 2024. Bolton Medical Inc reported $144.90 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1235622986 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 7, 2018 |
| Last updated in NPPES | Sep 10, 2024 |
| Certified by provider | Sep 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | S8958 | 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 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 139 |
|---|---|
| Services billed | 605 across 27 procedure codes |
| Paid by Medicare | $42,951 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,908 · 4,299 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $218,970 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Texas A & M University System, Hsc, College of Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Family Practice |
Medical group
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
Hospital affiliation
- Christus Santa Rosa Hospital-San MarcosSan Marcos, TX
Other facilities
- Christus HomecareHome health agency · New Braunfels, TX
- Christus Hospice - Central TexasHospice · San Marcos, TX
Industry payments (Open Payments)
- 2025$144.90 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bolton Medical Inc | $144.90 | 2 |
What the 2025 payments were for
- Food and Beverage$144.90 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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