Quick answers
- Does Efrain A. Feliciano accept Medicare assignment?
- Yes. Medicare's clinician data says Efrain A. Feliciano 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 Efrain A. Feliciano see?
- In 2024, CMS data shows 212 Original Medicare patients and 722 services for Efrain A. Feliciano. This counts Original Medicare only and measures volume, not quality.
- What is Efrain A. Feliciano's NPI number?
- 1851439954. 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 Efrain A. Feliciano, 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 | 212 |
|---|---|
| Services billed to Medicare | 722 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)214 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)144 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)73 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)71 services
- Ultrasound of both sides of head and neck blood flow (93880)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%
- Diabetes67%
- Chronic kidney disease60%
- Ischemic heart disease47%
- Arthritis38%
Hospitals where Efrain A. Feliciano works
Medicare's Facility Affiliation Data lists Efrain A. Feliciano 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.
- Auxilio Mutuo HospitalSan Juan, PR · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 400016
Practice locations
Addresses where Efrain A. Feliciano is enrolled with Medicare (CMS data updated October 2, 2026).
- 735 Ave Ponce De LeonSan Juan, PR 00917 (787) 763‑0654
- Ponce De Leon Ave, 715 Stop 37.5San Juan, PR 00918 (787) 771‑7934
Group practices
Medicare enrollment lists Efrain A. Feliciano as a member of this group (CMS data updated October 2, 2026).
- Hospital Espanol Auxilio Mutuo de Puerto Rico, Inc.54 clinicians in the group
Specialties
Other internal medicine doctors in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Other clinicians in Hospital Espanol Auxilio Mutuo de Puerto Rico, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Medical school | University Central Del Caribe Escuela De Medicina |
|---|---|
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851439954 |
| 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