Quick answers
- Does Roberto F. Marchan Matta accept Medicare assignment?
- Yes. Medicare's clinician data says Roberto F. Marchan Matta 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 Roberto F. Marchan Matta see?
- In 2024, CMS data shows 348 Original Medicare patients and 685 services for Roberto F. Marchan Matta. This counts Original Medicare only and measures volume, not quality.
- What is Roberto F. Marchan Matta's NPI number?
- 1023091410. 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 Roberto F. Marchan Matta, 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 | 348 |
|---|---|
| Services billed to Medicare | 685 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- X-ray of chest, 2 views (71046)93 services
- X-ray of knee, 1-2 views (73560)93 services
- X-ray of hand, minimum of 3 views (73130)51 services
- X-ray of shoulder, minimum of 2 views (73030)50 services
- X-ray of lower and sacral spine, 2-3 views (72100)48 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%
- Arthritis64%
- Diabetes63%
- Chronic kidney disease32%
- Osteoporosis32%
Practice locations
Addresses where Roberto F. Marchan Matta is enrolled with Medicare (CMS data updated October 2, 2026).
- Ave De Diego 126 Sein Medical Plaza O, Reparto MetropolitanoSan Juan, PR 00921 (787) 753‑4631
- Ave De Diego 126 Sein Medical Plaza Oficina, 1 Reaprto MetropolitanoSan Juan, PR 00921
Group practices
Medicare enrollment lists Roberto F. Marchan Matta as a member of this group (CMS data updated October 2, 2026).
- Roberto J Sein and Rafael M Rivera PTR5 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Other clinicians in Roberto J Sein and Rafael M Rivera PTR
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 (52 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023091410 |
| 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