Madeline L. O'Sullivan, MD
NPI 1770111353ActiveIndividual· Internal Medicine, Rheumatology· Tulsa, OK
Internal Medicine, Rheumatology (MD) in Tulsa, Oklahoma, trained at University of Oklahoma College of Medicine (class of 2020). Part D covered 16 prescriptions written in 2024, 88% of them generic.
Overview
| NPI | 1770111353 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2020 |
| Last updated in NPPES | Aug 2, 2026 |
| Certified by provider | Aug 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 48229 | OK |
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 - Internal Medicine (OK) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 40 30-day fills |
|---|---|
| Total drug cost | $2,504 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Rheumatology |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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