Quick answers
- Does Catharine A. Kollars accept Medicare assignment?
- Yes. Medicare's clinician data says Catharine A. Kollars 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.
- What is Catharine A. Kollars's NPI number?
- 1578543435. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Catharine A. Kollars is enrolled with Medicare (CMS data updated October 2, 2026).
- 4499 Medical DrSan Antonio, TX 78229
- 6800 I 10, Suite 100San Antonio, TX 78201 (210) 575‑8289
- 6800 W Ih, 10 Suite 130San Antonio, TX 78201 (210) 932‑1487
Group practices
Medicare enrollment lists Catharine A. Kollars as a member of this group (CMS data updated October 2, 2026).
- Methodist Physician Practices PLLC175 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Texas →
Other cardiologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Methodist Physician Practices PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mayo Medical School |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578543435 |
| 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
- 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