Paola Mercado Millan, MD
NPI 1689121634 · Cardiovascular Disease Physician · Santurce, PR
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paola Mercado Millan, MD is a Cardiovascular Disease Physician provider in Santurce, PR (NPI 1689121634).
Provider details
- NPI number
- 1689121634
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 34888 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 28 | 13 |
| Losartan Potassium | 21 | — |
| Metoprolol Succinate | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$517 across 17 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- University District HospitalPuerto Rico Medical Center Bo. MonacillosSan Juan, PR 00935Phone: (787) 955-6909
Registry dates
- Enumerated
- 2016-09-07
- Last updated
- 2024-07-16
- Certified
- 2024-07-16
Frequently asked questions
- What is Paola Mercado Millan's NPI number?
- Paola Mercado Millan's National Provider Identifier (NPI) is 1689121634, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paola Mercado Millan's specialty?
- Paola Mercado Millan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Paola Mercado Millan located?
- Paola Mercado Millan's practice location on file with NPPES is 1395 Calle San Rafael # 20, Santurce, PR 00909-2518.
- What is Paola Mercado Millan's phone number?
- The practice phone number listed in the NPPES registry for Paola Mercado Millan is (787) 999-7620.
- Does Paola Mercado Millan accept Medicare?
- Paola Mercado Millan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paola Mercado Millan's NPI active?
- Yes — Paola Mercado Millan's NPI (1689121634) is active in the NPPES registry as of the last update on 2024-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.