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Pathology

Joel Santiago Martinez, MD

Works at hospitals in Carolina, PR · Manati, PR · Puerto Rico

Summary

Dr. Joel Santiago Martinez, MD is a pathologist at Torre Medica I Dr Pedro, Manati, PR 00674. Phone: (787) 884-2445. May accept Medicare assignment. In 2024, Joel Santiago Martinez had 58 Original Medicare patients and 632 services. NPI 1568815306. 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 Joel Santiago Martinez, 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 Joel Santiago Martinez accept Medicare assignment?
Medicare's clinician data says Joel Santiago Martinez may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Joel Santiago Martinez see?
In 2024, CMS data shows 58 Original Medicare patients and 632 services for Joel Santiago Martinez. This counts Original Medicare only and measures volume, not quality.
What is Joel Santiago Martinez's NPI number?
1568815306. 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 Joel Santiago Martinez, 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 patients58
Services billed to Medicare632
Different services or procedures16
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Special stained specimen slides to identify organisms including interpretation and report (88312)191 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)137 services
  3. Special stained specimen slides to examine tissue including interpretation and report (88313)102 services
  4. Pathology examination of tissue using a microscope, intermediate complexity (88305)72 services
  5. Special stained specimen slides to examine tissue, initial procedure (88342)56 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 cholesterol67%
  • Diabetes59%
  • Arthritis55%
  • Chronic kidney disease38%
  • Depression21%

Hospitals where Joel Santiago Martinez works

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

Group practices

Medicare enrollment lists Joel Santiago Martinez as a member of this group (CMS data updated October 2, 2026).

  • Northwest Pathology CSP5 clinicians in the group

Specialties

Find other Pathology doctors in Puerto Rico →

Other pathologists in Manati

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

All pathologists in Manati →

Other clinicians in Northwest Pathology CSP

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolPonce School Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1568815306
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