Mary Hinojos Mamut, DO
NPI 1518314939ActiveIndividual· Internal Medicine, Rheumatology· Tulsa, OK
Internal Medicine, Rheumatology (DO) in Tulsa, Oklahoma, trained at Lincoln Mem Univ, Debusk Col of Osteopathic Med (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $422,696 for 714 claims, against $20,312 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $3,394 in all, mostly food and beverage.
Overview
| NPI | 1518314939 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 16, 2016 |
| Last updated in NPPES | Sep 14, 2023 |
| Certified by provider | Sep 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 7230 | OK |
| Internal Medicine, Rheumatology | 207RR0500X | OS16300 | FL |
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 - Rheumatology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 906 across 17 procedure codes |
| Paid by Medicare | $20,312 |
Part D prescriptions in 2024
| Prescriptions (claims) | 714 · 1,422 30-day fills |
|---|---|
| Patients | 193 |
| Total drug cost | $422,696 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Lincoln Mem Univ, Debusk Col of Osteopathic Med |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Rheumatology |
Medical groups
- Warren Clinic IncTulsa, OK · 883 clinicians
- Saint Francis Hospital, Inc.Tulsa, OK · 61 clinicians
Hospital affiliations
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$3,394 · 156 payments from 15 companies
- 2024$3,683 · 165 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $788.75 | 32 |
| Amgen Inc. | $653.17 | 42 |
| Ucb, Inc. | $433.47 | 13 |
| Pfizer Inc. | $412.23 | 18 |
| Astrazeneca Pharmaceuticals LP | $307.49 | 24 |
What the 2025 payments were for
- Food and Beverage$3,394 · 156 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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