Javier Leoncio Baez Presser, MD
NPI 1023560646ActiveIndividual· Internal Medicine· San Angelo, TX
Internal Medicine (MD) with Shannon Clinic, practicing in San Angelo, Texas. 367 Medicare patients in 2024, $103,133 paid; nearly all of their 393 Part D prescriptions were generic (91%). Abbvie Inc. reported $30.01 in payments in 2025, mostly food and beverage. Lists Shannon Medical Center as a hospital affiliation.
Overview
| NPI | 1023560646 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 31, 2016 |
| Last updated in NPPES | Aug 11, 2023 |
| Certified by provider | Aug 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | U5636 | TX |
| Internal Medicine | 207R00000X | MD61256372 | WA |
| Hospitalist | 208M00000X | MD61256372 | WA |
| 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 367 |
|---|---|
| Services billed | 1,157 across 12 procedure codes |
| Paid by Medicare | $103,133 |
Part D prescriptions in 2024
| Prescriptions (claims) | 393 · 400 30-day fills |
|---|---|
| Patients | 161 |
| Total drug cost | $9,751 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Shannon ClinicSan Angelo, TX · 559 clinicians
Hospital affiliation
- Shannon Medical CenterSan Angelo, TX
Industry payments (Open Payments)
- 2025$30.01 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $30.01 | 1 |
What the 2025 payments were for
- Food and Beverage$30.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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