Quick answers
- Does Ricardo Fernandez accept Medicare assignment?
- Yes. Medicare's clinician data says Ricardo Fernandez 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 Ricardo Fernandez see?
- In 2024, CMS data shows 124 Original Medicare patients and 410 services for Ricardo Fernandez. This counts Original Medicare only and measures volume, not quality.
- What is Ricardo Fernandez's NPI number?
- 1588764013. 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 Ricardo Fernandez, 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 | 124 |
|---|---|
| Services billed to Medicare | 410 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)204 services
- Test to measure expiratory airflow and volume (94010)38 services
- Test to determine lung volumes using gas dilution or washout (94727)34 services
- Test to examine how well the lungs exchange gases (94729)34 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)26 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%
- Diabetes69%
- Arthritis47%
- Chronic kidney disease40%
- Asthma40%
Hospitals where Ricardo Fernandez works
Medicare's Facility Affiliation Data lists Ricardo Fernandez 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
- San Juan Municipality HospitalRio Piedras, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400015
Practice locations
Addresses where Ricardo Fernandez is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Grand Paseo Blvd, 106aSan Juan, PR 00926 (787) 755‑4245
Specialties
Other internal medicine doctors in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 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) | 1588764013 |
| 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