Quick answers
- Does Giovanni C. Casillas accept Medicare assignment?
- Yes. Medicare's clinician data says Giovanni C. Casillas 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 Giovanni C. Casillas see?
- In 2024, CMS data shows 63 Original Medicare patients and 318 services for Giovanni C. Casillas. This counts Original Medicare only and measures volume, not quality.
- What is Giovanni C. Casillas's NPI number?
- 1265455216. 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 Giovanni C. Casillas, 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 | 63 |
|---|---|
| Services billed to Medicare | 318 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)89 services
- Removal of impacted ear wax (69210)63 services
- Comprehensive hearing and speech recognition test (92557)30 services
- Placement of ear probe for computerized measurement of repeated sounds with interpretation and report (92588)30 services
- Comprehensive hearing test (92570)29 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%
- Diabetes70%
- Chronic kidney disease37%
- Arthritis35%
- Ischemic heart disease21%
Practice locations
Addresses where Giovanni C. Casillas is enrolled with Medicare (CMS data updated October 2, 2026).
- Uu43 CalleBayamon, PR 00956 (787) 787‑8669
- Uu43 Calle, Suite 30Bayamon, PR 00956 (787) 787‑8669
Group practices
Medicare enrollment lists Giovanni C. Casillas as a member of this group (CMS data updated October 2, 2026).
- Physiotherapy Rehabilitation Services Inc54 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Bayamon
Clinicians with the same Medicare primary specialty in Bayamon, PR — not a recommendation.
Other clinicians in Physiotherapy Rehabilitation Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1265455216 |
| 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