Michael Lloyd McMahon II, M.D.
NPI 1548240641ActiveIndividual· Internal Medicine· Nederland, TX
Internal Medicine (M.D.) in Nederland, Texas, trained at University of Texas Medical Branch at Galveston (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $994,141 for 13,444 claims, against $289,931 paid for services in 2024.
Overview
| NPI | 1548240641 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 17, 2006 |
| Last updated in NPPES | Jan 6, 2021 |
| Certified by provider | Jan 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | K0347 | TX |
| Pediatrics | 208000000X | K0347 | TX |
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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 660 |
|---|---|
| Services billed | 4,160 across 28 procedure codes |
| Paid by Medicare | $289,931 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,444 · 14,514 30-day fills |
|---|---|
| Patients | 574 |
| Total drug cost | $994,141 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mid County Medical Group PANederland, TX · 7 clinicians
Hospital affiliations
- Chi St Lukes Health Memorial LivingstonLivingston, TX
- Christus Southeast Texas- St ElizabethBeaumont, TX
- The Medical Center of Southeast TexasPort Arthur, TX
- Tyler County HospitalWoodville, TX
Other facilities
- Accentcare Home Health of TexasHome health agency · Beaumont, TX
- Centerwell Home HealthHome health agency · Beaumont, TX
- Theracare Home HealthHome health agency · San Antonio, TX
- Heart To Heart Hospice of Lufkin LLCHospice · Lufkin, TX
- Heart To Heart Hospice of the Gulf CoastHospice · Beaumont, TX
- Olive Branch HospiceHospice · Jasper, TX
- Pam Rehabilitation Hospital of BeaumontInpatient rehabilitation facility · Beaumont, TX
- Beaumont Health Care CenterNursing home · Beaumont, TX
- Bonne VieNursing home · Port Arthur, TX
- College Street Health Care CenterNursing home · Beaumont, TX
- Oak Grove Nursing HomeNursing home · Groves, TX
- Sabine Heights Nursing and Rehabilitation CenterNursing home · Port Arthur, TX
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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