Quick answers
- Does Frank W. Ayestaran Cassani accept Medicare assignment?
- Yes. Medicare's clinician data says Frank W. Ayestaran Cassani 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 Frank W. Ayestaran Cassani see?
- In 2024, CMS data shows 16 Original Medicare patients and 67 services for Frank W. Ayestaran Cassani. This counts Original Medicare only and measures volume, not quality.
- What is Frank W. Ayestaran Cassani's NPI number?
- 1366715799. 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 Frank W. Ayestaran Cassani, 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 | 16 |
|---|---|
| Services billed to Medicare | 67 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
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%
- Chronic kidney disease75%
Hospitals where Frank W. Ayestaran Cassani works
Medicare's Facility Affiliation Data lists Frank W. Ayestaran Cassani 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.
- Johns Hopkins All Children's HospitalSaint Petersburg, FL · Children's Hospital · Emergency services: listed by Medicare · CCN 103300
- Tampa General HospitalTampa, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100128
Practice locations
Addresses where Frank W. Ayestaran Cassani is enrolled with Medicare (CMS data updated October 2, 2026).
- 17 Davis Blvd, 2nd FloorTampa, FL 33606 (813) 259‑8700
Group practices
Medicare enrollment lists Frank W. Ayestaran Cassani as a member of this group (CMS data updated October 2, 2026).
- University Medical Service Association Inc809 clinicians in the group
Specialties
- Pediatric Medicineprimary
Other pediatricians in Tampa
Clinicians with the same Medicare primary specialty in Tampa, FL — not a recommendation.
Other clinicians in University Medical Service Association Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366715799 |
| 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