Roberto J. Diaz, MD
NPI 1649591595ActiveIndividual· Anesthesiology, Pain Medicine· San Antonio, TX
Anesthesiology, Pain Medicine (MD) in San Antonio, Texas, trained at University of Texas Medical School at San Antonio (class of 2005). 466 Medicare patients in 2024, $434,784 paid; nearly all of their 3,927 Part D prescriptions were generic (94%). Globus Medical, Inc. was the largest of 13 companies reporting payments in 2025, $1,406 in all, mostly food and beverage.
Overview
| NPI | 1649591595 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2010 |
| Last updated in NPPES | Apr 27, 2022 |
| Certified by provider | Apr 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology, Pain Medicine Primary | 207LP2900X | M7142 | TX |
| Anesthesiology | 207L00000X | M7142 | 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 - Pain Management (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 466 |
|---|---|
| Services billed | 9,140 across 74 procedure codes |
| Paid by Medicare | $434,784 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,927 · 4,123 30-day fills |
|---|---|
| Patients | 540 |
| Total drug cost | $401,602 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Pain Management |
| Secondary specialties | Anesthesiology |
Medical group
- Larina V Gutenberg DO PLLCSan Antonio, TX · 4 clinicians
Industry payments (Open Payments)
- 2025$1,406 · 42 payments from 13 companies
- 2024$2,216 · 80 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $552.95 | 6 |
| Abbott Laboratories | $222.29 | 13 |
| Boston Scientific Corporation | $200.19 | 5 |
| Biotissue Holdings Inc. | $125.00 | 1 |
| Saluda Medical Americas, Inc. | $88.91 | 4 |
What the 2025 payments were for
- Food and Beverage$947.13 · 39 payments
- Travel and Lodging$459.00 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 pain medicine anesthesiologists in San Antonio · All pain medicine anesthesiologists in Texas