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Hematology/Oncology

Marvin Matta Rivera, MD

Sees patients in San Juan, PR · Bayamon, PR · Puerto Rico

Summary

Marvin Matta Rivera, MD (Hematology/Oncology) is enrolled with Medicare at 2 practice locations in San Juan, PR and Bayamon, PR. NPI 1629357488. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(787) 274‑3387 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Marvin Matta Rivera, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
MaleGender (as listed)
Pro Health Clinical Services LLCGroup practice (+1 more)

Quick answers

Where does Marvin Matta Rivera see patients?
Medicare's clinician data lists 2 practice locations, including San Juan, PR and Bayamon, PR. Call before your visit to confirm the address.
What is Marvin Matta Rivera's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does Marvin Matta Rivera accept Medicare assignment?
Yes. Medicare's clinician data says Marvin Matta Rivera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Marvin Matta Rivera?
(787) 274-3387, as listed in official Medicare / NPI Registry data.
What is Marvin Matta Rivera's NPI number?
1629357488. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Marvin Matta Rivera is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Marvin Matta Rivera as a member of these groups (CMS data updated 2026-10-02).

  • Pro Health Clinical Services LLC20 clinicians in the group
  • PR Cancer Specialists LLC2 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Puerto Rico →

Other hematologist-oncologists in San Juan

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

All hematologist-oncologists in San Juan →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629357488
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians