Quick answers
- Does Bernardo J. Marques Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Bernardo J. Marques Diaz 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 Bernardo J. Marques Diaz see?
- In 2024, CMS data shows 522 Original Medicare patients and 4,965 services for Bernardo J. Marques Diaz. This counts Original Medicare only and measures volume, not quality.
- What is Bernardo J. Marques Diaz's NPI number?
- 1013910231. 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 Bernardo J. Marques Diaz, 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 | 522 |
|---|---|
| Services billed to Medicare | 4,965 |
| Different services or procedures | 99 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)3,575 services
- Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml (A9579)249 services
- X-ray of chest, 2 views (71046)98 services
- Dxa bone density measurement of hip, pelvis, spine (77080)83 services
- X-ray of knee, 1-2 views (73560)67 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%
- Diabetes63%
- Arthritis53%
- Osteoporosis32%
- Chronic kidney disease31%
Practice locations
Addresses where Bernardo J. Marques Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 310 Ave Lomas Verdes, Suite 208San Juan, PR 00927 (787) 751‑3150
Group practices
Medicare enrollment lists Bernardo J. Marques Diaz as a member of this group (CMS data updated October 2, 2026).
- Santa Maria Radiology, PSC2 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.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ponce School Of Medicine |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013910231 |
| 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