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Internal Medicine

Pedro D. Santiago, MD

Works at hospitals in Humacao, PR · Puerto Rico

Summary

Dr. Pedro D. Santiago, MD is an internal medicine doctor at 66 Calle Munoz Rivera, Juana Diaz, PR 00795. Phone: (787) 260-7849. Accepts Medicare assignment. In 2024, Pedro D. Santiago had 32 Original Medicare patients and 143 services. NPI 1780965467. 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: 66 Calle Munoz Rivera, Juana Diaz, PR 00795 · Directions
  • Phone: (787) 260‑7849
  • Medicare: Accepts Medicare assignment
  • Hospital: Ryder Memorial Hospital Inc
  • Medical school: San Juan Bautista School Of Medicine · graduated 2010 (16 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Pedro D. 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 Pedro D. Santiago accept Medicare assignment?
Yes. Medicare's clinician data says Pedro D. 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 Pedro D. Santiago see?
In 2024, CMS data shows 32 Original Medicare patients and 143 services for Pedro D. Santiago. This counts Original Medicare only and measures volume, not quality.
What is Pedro D. Santiago's NPI number?
1780965467. 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 Pedro D. 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 patients32
Services billed to Medicare143
Different services or procedures9
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)66 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)26 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)15 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%
  • Diabetes63%
  • Chronic kidney disease53%

Hospitals where Pedro D. Santiago works

Medicare's Facility Affiliation Data lists Pedro D. 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 Pedro D. 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 Juana Diaz

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

All internal medicine doctors in Juana Diaz →

Clinician information

CredentialMD
Medical schoolSan Juan Bautista School Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780965467
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