Quick answers
- Does Rogelio Mercado-Seda accept Medicare assignment?
- Yes. Medicare's clinician data says Rogelio Mercado-Seda 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 Rogelio Mercado-Seda see?
- In 2024, CMS data shows 50 Original Medicare patients and 124 services for Rogelio Mercado-Seda. This counts Original Medicare only and measures volume, not quality.
- What is Rogelio Mercado-Seda's NPI number?
- 1427359157. 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 Rogelio Mercado-Seda, 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 | 50 |
|---|---|
| Services billed to Medicare | 124 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)57 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)17 services
- Destruction of skin growth, 1-14 growths (17110)13 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 cholesterol75%
- High blood pressure74%
- Diabetes66%
- Arthritis50%
- Chronic kidney disease44%
- Osteoporosis38%
Practice locations
Addresses where Rogelio Mercado-Seda is enrolled with Medicare (CMS data updated October 2, 2026).
- 27 Calle Dr Nelson Perea, Suite 105Mayaguez, PR 00680 (787) 831‑1000
Specialties
- Dermatologyprimary
Other dermatologists in Puerto Rico
Clinicians with the same Medicare primary specialty in Puerto Rico — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427359157 |
| 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