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Certified Nurse Midwife (CNM)

Massiel Oyanguren, CNM

Sees patients in New York, NY · Brooklyn, NY · New York

Summary

Massiel Oyanguren, CNM is a nurse midwife at 111 Broadway, New York, NY 10006. Phone: (212) 263-9700. Accepts Medicare assignment. NPI 1720442379. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Nurse midwife (Medicare lists Certified Nurse Midwife (CNM))
  • Address: 111 Broadway, New York, NY 10006 · Directions (2 more locations)
  • Phone: (212) 263‑9700
  • Medicare: Accepts Medicare assignment
  • Group practice: New York University
  • School: State University Of New York Downstate Medical Center · graduated 2014
  • Gender (as listed): Female
Call(212) 263‑9700 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Massiel Oyanguren, 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 Massiel Oyanguren accept Medicare assignment?
Yes. Medicare's clinician data says Massiel Oyanguren 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 Massiel Oyanguren's NPI number?
1720442379. 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 Massiel Oyanguren is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Massiel Oyanguren as a member of this group (CMS data updated October 2, 2026).

  • New York University6,134 clinicians in the group

Specialties

Find other clinicians: Certified Nurse Midwife (CNM), New York →

Other nurse midwifes in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All nurse midwifes in New York →

Other clinicians in New York University

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

Clinician information

CredentialCNM
SchoolState University Of New York Downstate Medical Center
Graduation year2014
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720442379
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