Nathan Michael O'Brien, M.D.
NPI 1558628578ActiveIndividual· Emergency Medicine· Ocoee, FL
Emergency Medicine (M.D.) in Ocoee, Florida, trained at Vanderbilt University School of Medicine (class of 2012). 208 Medicare patients in 2024, $31,326 paid; nearly all of their 75 Part D prescriptions were generic (96%).
Overview
| NPI | 1558628578 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 15, 2012 |
| Last updated in NPPES | Jun 30, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | ME 127854 | FL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Emergency Medicine (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 208 |
|---|---|
| Services billed | 369 across 20 procedure codes |
| Paid by Medicare | $31,326 |
Part D prescriptions in 2024
| Prescriptions (claims) | 75 · 76 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $2,429 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Emergency Medicine |
Medical group
- Emergency Physicians of Central Florida LLPLakeland, FL · 153 clinicians
Hospital affiliation
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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