Quick answers
- Does Carlos A. Cardenas accept Medicare assignment?
- Yes. Medicare's clinician data says Carlos A. Cardenas 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 Carlos A. Cardenas see?
- In 2024, CMS data shows 56 Original Medicare patients and 214 services for Carlos A. Cardenas. This counts Original Medicare only and measures volume, not quality.
- What is Carlos A. Cardenas's NPI number?
- 1487643664. 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 Carlos A. Cardenas, 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 | 56 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)111 services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)25 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)20 services
- Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)19 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%
- High blood pressure59%
- Arthritis46%
- Diabetes41%
- Chronic kidney disease23%
Practice locations
Addresses where Carlos A. Cardenas is enrolled with Medicare (CMS data updated October 2, 2026).
- 1303 McCullough Ave, Suite 533San Antonio, TX 78212 (210) 465‑5545
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1969 (57 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1487643664 |
| 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