Quick answers
- Does Maruja Santiago Velez accept Medicare assignment?
- Medicare's clinician data says Maruja Santiago Velez may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Maruja Santiago Velez see?
- In 2024, CMS data shows 105 Original Medicare patients and 279 services for Maruja Santiago Velez. This counts Original Medicare only and measures volume, not quality.
- What is Maruja Santiago Velez's NPI number?
- 1831135367. 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 Maruja Santiago Velez, 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 | 105 |
|---|---|
| Services billed to Medicare | 279 |
| Different services or procedures | 58 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- X-ray of chest, 1 view (71045)52 services
- X-ray of chest, 2 views (71046)21 services
- Ct scan head or brain without contrast (70450)17 services
- Ct scan of abdomen and pelvis without contrast (74176)16 services
- X-ray of lower and sacral spine, 2-3 views (72100)11 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 cholesterol73%
- Diabetes51%
- Chronic kidney disease40%
- Arthritis36%
- Osteoporosis27%
Practice locations
Addresses where Maruja Santiago Velez is enrolled with Medicare (CMS data updated October 2, 2026).
- Carr 132 Km 22, Plaza GabrielaPonce, PR 00728 (787) 812‑3939
Group practices
Medicare enrollment lists Maruja Santiago Velez as a member of this group (CMS data updated October 2, 2026).
- RS Medical Service Corp2 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Ponce
Clinicians with the same Medicare primary specialty in Ponce, PR — not a recommendation.
Other clinicians in RS Medical Service Corp
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ponce School Of Medicine |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1831135367 |
| 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