Quick answers
- Does Rafael F. Guindin accept Medicare assignment?
- Yes. Medicare's clinician data says Rafael F. Guindin 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 Rafael F. Guindin see?
- In 2024, CMS data shows 17 Original Medicare patients and 75 services for Rafael F. Guindin. This counts Original Medicare only and measures volume, not quality.
- What is Rafael F. Guindin's NPI number?
- 1770618654. 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 Rafael F. Guindin, 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 | 17 |
|---|---|
| Services billed to Medicare | 75 |
| Different services or procedures | 2 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Psychotherapy, 45 minutes (90834)65 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%
- Depression71%
Practice locations
Addresses where Rafael F. Guindin is enrolled with Medicare (CMS data updated October 2, 2026).
- 29 Calle WashingtonSan Juan, PR 00907 (787) 429‑9129
- 29 Washington, Ashford Medical Center Suite 104San Juan, PR 00907
- 29 Washington St, Ashford Medical Center Suite 104San Juan, PR 00907
- Carr 144 Km 1Jayuya, PR 00664 (787) 429‑9129
Specialties
- Psychiatryprimary
Other psychiatrists in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Graduation year | 1983 (43 years since medical school) |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770618654 |
| 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