Mariah Elizabeth Small-O'Sullivan, M.D.
NPI 1477085249ActiveIndividual· Otolaryngology· Hot Springs, AR
Otolaryngology (M.D.) in Hot Springs, Arkansas, trained at University of Arkansas College of Medicine (class of 2017). 421 Medicare patients in 2024, $85,568 paid; nearly all of their 1,287 Part D prescriptions were generic (96%). Aerin Medical Inc. was the largest of 6 companies reporting payments in 2025, $509.16 in all, mostly food and beverage.
Overview
| NPI | 1477085249 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 31, 2017 |
| Last updated in NPPES | May 20, 2022 |
| Certified by provider | May 20, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | E-15155 | AR |
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 - Otolaryngology (AR); Practitioner - Otolaryngology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 421 |
|---|---|
| Services billed | 962 across 87 procedure codes |
| Paid by Medicare | $85,568 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,287 · 1,491 30-day fills |
|---|---|
| Patients | 390 |
| Total drug cost | $25,388 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Arkansas College of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Otolaryngology |
Medical groups
- Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.Rhinelander, WI · 574 clinicians
- Chi St Vincent Medical Group Hot SpringsHot Springs, AR · 185 clinicians
Hospital affiliations
- Chi St. Vincent Hospital Hot SpringsHot Springs, AR
- Mena Regional Health SystemMena, AR
- National Park Medical CenterHot Springs, AR
Industry payments (Open Payments)
- 2025$509.16 · 14 payments from 6 companies
- 2024$196.25 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aerin Medical Inc. | $212.48 | 4 |
| Agiliti Surgical, Inc. | $116.66 | 1 |
| Glaxosmithkline, LLC. | $81.89 | 4 |
| Inspire Medical Systems, Inc. | $60.43 | 3 |
| Regeneron Healthcare Solutions, Inc. | $20.26 | 1 |
What the 2025 payments were for
- Food and Beverage$509.16 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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