Quick answers
- Does Aristotelis C. Papayannis accept Medicare assignment?
- Yes. Medicare's clinician data says Aristotelis C. Papayannis 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 Aristotelis C. Papayannis see?
- In 2024, CMS data shows 897 Original Medicare patients and 2,651 services for Aristotelis C. Papayannis. This counts Original Medicare only and measures volume, not quality.
- What is Aristotelis C. Papayannis's NPI number?
- 1528325339. 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 Aristotelis C. Papayannis, 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 | 897 |
|---|---|
| Services billed to Medicare | 2,651 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)676 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)492 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)341 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)281 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)175 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 blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease53%
- Chronic kidney disease45%
- Heart failure42%
Hospitals where Aristotelis C. Papayannis works
Medicare's Facility Affiliation Data lists Aristotelis C. Papayannis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baptist Medical CenterSan Antonio, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450058
- Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388
- Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055
Practice locations
Addresses where Aristotelis C. Papayannis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1139 E Sonterra Blvd, Suite 520San Antonio, TX 78258 (210) 490‑6000
Group practices
Medicare enrollment lists Aristotelis C. Papayannis as a member of this group (CMS data updated October 2, 2026).
- Cardiology Clinic of San Antonio, PLLC126 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 Cardiology Clinic of San Antonio, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528325339 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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