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General Practice

Juan Nieves Cintron, MD

Works at hospitals in San Juan, PR · Puerto Rico

Summary

Dr. Juan Nieves Cintron, MD is a general practitioner at 1785 Carr, Suite 21, San Juan, PR 00921. Phone: (787) 548-5986. Accepts Medicare assignment. In 2024, Juan Nieves Cintron had 51 Original Medicare patients and 72 services. NPI 1114386406. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Juan Nieves Cintron, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Juan Nieves Cintron accept Medicare assignment?
Yes. Medicare's clinician data says Juan Nieves Cintron 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 Juan Nieves Cintron see?
In 2024, CMS data shows 51 Original Medicare patients and 72 services for Juan Nieves Cintron. This counts Original Medicare only and measures volume, not quality.
What is Juan Nieves Cintron's NPI number?
1114386406. 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 Juan Nieves Cintron, 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 patients51
Services billed to Medicare72
Different services or procedures10
Participating Medicare providerYes
Average age of these patients81

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)14 services
  2. Emergency department visit with moderate level of medical decision making (99284)11 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%
  • Diabetes65%
  • Arthritis51%
  • Ischemic heart disease35%
  • Chronic kidney disease35%

Hospitals where Juan Nieves Cintron works

Medicare's Facility Affiliation Data lists Juan Nieves Cintron 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.

Practice locations

Addresses where Juan Nieves Cintron is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other General Practice doctors in Puerto Rico →

Other general practitioners in San Juan

Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.

All general practitioners in San Juan →

Clinician information

CredentialMD
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114386406
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians