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Critical Care (Intensivists)

Marcelo A. Fontenelle Ribeiro Jr., MD

Works at hospitals in Baltimore, MD · Easton, MD · Maryland

Summary

Dr. Marcelo A. Fontenelle Ribeiro Jr., MD is a critical care doctor at 22 S Green St, Baltimore, MD 21201. Phone: (410) 328-6704. Accepts Medicare assignment. NPI 1851124697. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Marcelo A. Fontenelle Ribeiro Jr., 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 Marcelo A. Fontenelle Ribeiro Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Marcelo A. Fontenelle Ribeiro Jr. 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.
What is Marcelo A. Fontenelle Ribeiro Jr.'s NPI number?
1851124697. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marcelo A. Fontenelle Ribeiro Jr. works

Medicare's Facility Affiliation Data lists Marcelo A. Fontenelle Ribeiro Jr. 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 Marcelo A. Fontenelle Ribeiro Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marcelo A. Fontenelle Ribeiro Jr. as a member of this group (CMS data updated October 2, 2026).

  • Shock Trauma Associates PA261 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Maryland →

Other critical care doctors in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All critical care doctors in Baltimore →

Other clinicians in Shock Trauma Associates PA

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

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851124697
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians