Quick answers
- Does Sergio G. Martinez accept Medicare assignment?
- Yes. Medicare's clinician data says Sergio G. Martinez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Sergio G. Martinez see?
- In 2024, CMS data shows 89 Original Medicare patients and 97 services for Sergio G. Martinez. This counts Original Medicare only and measures volume, not quality.
- What is Sergio G. Martinez's NPI number?
- 1588123939. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Sergio G. Martinez, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 89 |
|---|---|
| Services billed to Medicare | 97 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Replacement of knee joint, both sides of knee (27447)48 services
- Replacement of thigh bone and hip joint with prosthesis (27130)28 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Arthritis75%
- High blood pressure69%
- Ischemic heart disease29%
- Asthma20%
- Depression19%
Practice locations
Addresses where Sergio G. Martinez is enrolled with Medicare (CMS data updated October 2, 2026).
- 1400 N Ih 35Austin, TX 78701
- 1400 N Ih 35 Ll, Cl400 Tri County Prac AssocAustin, TX 78701 (512) 324‑7300
- 3707 S 2nd St, 100 Ascension Medical Group Seton OrthopediAustin, TX 78704 (512) 246‑4488
- 7900 FMAustin, TX 78737
Group practices
Medicare enrollment lists Sergio G. Martinez as a member of this group (CMS data updated October 2, 2026).
- Seton Family of Doctors792 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Austin
Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.
Other clinicians in Seton Family of Doctors
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2018 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588123939 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians