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Internal Medicine

Juan C. Ortiz Santiago, MD

Works at hospitals in Bayamon, PR · Puerto Rico

Summary

Dr. Juan C. Ortiz Santiago, MD is an internal medicine doctor at Centro Comercial Los Prados, Suite E, Caguas, PR 00727. Phone: (787) 961-0091. Accepts Medicare assignment. In 2024, Juan C. Ortiz Santiago had 19 Original Medicare patients and 67 services. NPI 1942403084. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: Centro Comercial Los Prados, Suite E, Caguas, PR 00727 · Directions
  • Phone: (787) 961‑0091
  • Medicare: Accepts Medicare assignment
  • Hospital: Bayamon Medical Center
  • Medical school: University Central Del Caribe Escuela De Medicina · graduated 2004 (22 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Juan C. Ortiz Santiago, 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 C. Ortiz Santiago accept Medicare assignment?
Yes. Medicare's clinician data says Juan C. Ortiz Santiago 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 C. Ortiz Santiago see?
In 2024, CMS data shows 19 Original Medicare patients and 67 services for Juan C. Ortiz Santiago. This counts Original Medicare only and measures volume, not quality.
What is Juan C. Ortiz Santiago's NPI number?
1942403084. 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 C. Ortiz Santiago, 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 patients19
Services billed to Medicare67
Different services or procedures8
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)12 services
  2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)12 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 cholesterol63%

Hospitals where Juan C. Ortiz Santiago works

Medicare's Facility Affiliation Data lists Juan C. Ortiz Santiago 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 C. Ortiz Santiago is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Puerto Rico →

Other internal medicine doctors in Caguas

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

All internal medicine doctors in Caguas →

Clinician information

CredentialMD
Medical schoolUniversity Central Del Caribe Escuela De Medicina
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942403084
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