John Mark McLain, MD
NPI 1366857336ActiveIndividual· Surgery· New Braunfels, TX
Surgery (MD) in New Braunfels, Texas, trained at Wright State University Boonshoft School of Medicine (class of 2014). Mostly services rather than prescriptions: Medicare paid $39,042 for 113 patients in 2024, with only 46 Part D claims. Intuitive Surgical, Inc. was the largest of 3 companies reporting payments in 2025, $283.45 in all, mostly food and beverage.
Overview
| NPI | 1366857336 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 27, 2014 |
| Last updated in NPPES | Apr 22, 2026 |
| Certified by provider | Apr 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | S5985 | TX |
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 - General Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 113 |
|---|---|
| Services billed | 213 across 44 procedure codes |
| Paid by Medicare | $39,042 |
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 46 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $162.09 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Wright State University Boonshoft School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | General Surgery |
Medical group
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
Hospital affiliations
- Christus Santa Rosa Hospital-San MarcosSan Marcos, TX
- Guadalupe Regional Medical CenterSeguin, TX
- Resolute Health HospitalNew Braunfels, TX
Industry payments (Open Payments)
- 2025$283.45 · 5 payments from 3 companies
- 2024$4,161 · 13 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $147.38 | 3 |
| Integra Lifesciences Corporation | $129.07 | 1 |
| Kerecis Limited | $7.00 | 1 |
What the 2025 payments were for
- Food and Beverage$283.45 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 general surgeons in New Braunfels · All general surgeons in Texas