Mark J. Hamilton, MD
NPI 1689889255ActiveIndividual· Family Medicine· Mt Vernon, TX
Family Medicine (MD) in Mt Vernon, Texas, trained at University of Oklahoma College of Medicine (class of 2007). 225 Medicare patients in 2024, $33,411 paid; nearly all of their 152 Part D prescriptions were generic (90%).
Overview
| NPI | 1689889255 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 14, 2007 |
| Last updated in NPPES | Jan 4, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | N1667 | 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 - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 225 |
|---|---|
| Services billed | 465 across 14 procedure codes |
| Paid by Medicare | $33,411 |
Part D prescriptions in 2024
| Prescriptions (claims) | 152 · 174 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $4,980 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Family Practice |
Medical groups
- Century Integrated Partners, IncWaco, TX · 340 clinicians
- Hospital Care Consultants of Corpus ChristiSan Antonio, TX · 21 clinicians
Hospital affiliations
- South Texas Spine and Surgical HospitalSan Antonio, TX
- The Heart Hospital Baylor DentonDenton, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Family Medicine providers in Mt Vernon
- 1780871988
- 1922922962