Seamus David Lonergan, M.D.
NPI 1407953391ActiveIndividual· Emergency Medicine· San Francisco, CA
Emergency Medicine (M.D.) in San Francisco, California, trained at University of California, San Francisco School of Medicine (class of 2003). 480 Medicare patients in 2024, $77,337 paid; nearly all of their 196 Part D prescriptions were generic (94%). Gilead Sciences, Inc. was the largest of 2 companies reporting payments in 2025, $16,709 in all, mostly consulting fees.
Overview
| NPI | 1407953391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A90573 | CA |
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 - Emergency Medicine (FL); Practitioner - Emergency Medicine (OK); Practitioner - Emergency Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 480 |
|---|---|
| Services billed | 823 across 32 procedure codes |
| Paid by Medicare | $77,337 |
Part D prescriptions in 2024
| Prescriptions (claims) | 196 · 204 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $5,322 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Emergency Medicine |
Medical group
- Ies ER Oklahoma LLCMuskogee, OK · 143 clinicians
Hospital affiliations
- Baylor Scott & White Medical Center GrapevineGrapevine, TX
- Baylor Scott and White Medical Center Frisco at PgFrisco, TX
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$16,709 · 10 payments from 2 companies
- 2024$13,678 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $14,000 | 8 |
| Roche Diagnostics Corporation | $2,709 | 2 |
What the 2025 payments were for
- Consulting Fee$14,000 · 8 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,559 · 1 payment
- Food and Beverage$150.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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