Quick answers
- Does Paola Mercado Millan accept Medicare assignment?
- Yes. Medicare's clinician data says Paola Mercado Millan 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.
- What is Paola Mercado Millan's NPI number?
- 1689121634. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Paola Mercado Millan works
Medicare's Facility Affiliation Data lists Paola Mercado Millan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Doctors Center Hospital Carolina LLCCarolina, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400132
- Doctors' Center Hospital San JuanSanturce, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400006
Practice locations
Addresses where Paola Mercado Millan is enrolled with Medicare (CMS data updated October 2, 2026).
- Doctor' S Ctr Manat Carr, 2 Km 47.7Manati, PR 00674 (787) 633‑2671
Group practices
Medicare enrollment lists Paola Mercado Millan as a member of this group (CMS data updated October 2, 2026).
- CCS PSC12 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Puerto Rico →
Other cardiologists in Manati
Clinicians with the same Medicare primary specialty in Manati, PR — not a recommendation.
Other clinicians in CCS PSC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689121634 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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