Quick answers
- Does Mercedes E. De Choudens accept Medicare assignment?
- Yes. Medicare's clinician data says Mercedes E. De Choudens 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 Mercedes E. De Choudens see?
- In 2024, CMS data shows 22 Original Medicare patients and 37 services for Mercedes E. De Choudens. This counts Original Medicare only and measures volume, not quality.
- What is Mercedes E. De Choudens's NPI number?
- 1477504520. 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 Mercedes E. De Choudens, 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 | 22 |
|---|---|
| Services billed to Medicare | 37 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Complete ultrasound scan of 1 breast (76641)17 services
- Screening mammography (77067)16 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%
- Diabetes59%
Practice locations
Addresses where Mercedes E. De Choudens is enrolled with Medicare (CMS data updated October 2, 2026).
- 20 -A Edif 4 LocalBayamon, PR 00957 (787) 730‑4542
- Centro Comercial Bella VistaBayamon, PR 00957 (787) 730‑4542
- Edificio, 8a Centro Comercial Bella VistaBayamon, PR 00957 (787) 730‑4542
Group practices
Medicare enrollment lists Mercedes E. De Choudens as a member of this group (CMS data updated October 2, 2026).
- Ponce Neuroradiological Services PSC4 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Bayamon
Clinicians with the same Medicare primary specialty in Bayamon, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477504520 |
| 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