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Pediatric Medicine

Viviana M. Plaz Hernandez, MD

Sees patients in Somerville, MA · Massachusetts

Summary

Dr. Viviana M. Plaz Hernandez, MD is a pediatrician at 399 Revolution Dr, Suite 458, Somerville, MA 02145. May accept Medicare assignment. NPI 1871297788. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 399 Revolution Dr, Suite 458, Somerville, MA 02145 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2018 (8 years since medical school)
  • Gender (as listed): Female
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Viviana M. Plaz Hernandez, 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 Viviana M. Plaz Hernandez accept Medicare assignment?
Medicare's clinician data says Viviana M. Plaz Hernandez may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Viviana M. Plaz Hernandez's NPI number?
1871297788. 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 Viviana M. Plaz Hernandez is enrolled with Medicare (CMS data updated October 2, 2026).

  • 399 Revolution Dr, Suite 458Somerville, MA 02145
  • Mass General Brigham Provider Enrollment, 399 Revolution Drive Suite 458Somerville, MA 02145

Specialties

Find other Pediatric Medicine doctors in Massachusetts →

Other pediatricians in Somerville

Clinicians with the same Medicare primary specialty in Somerville, MA — not a recommendation.

All pediatricians in Somerville →

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1871297788
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 October 2, 2026, retrieved October 29, 2026
  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