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Hospitalist

Hnin Hnin Oo, MD

Works at hospitals in Waterbury, CT · Connecticut

Summary

Dr. Hnin Hnin Oo, MD is a hospitalist at 56 Franklin St, Waterbury, CT 06706. Phone: (203) 709-6000. Accepts Medicare assignment. NPI 1184008021. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Hospitalist
  • Address: 56 Franklin St, Waterbury, CT 06706 · Directions
  • Phone: (203) 709‑6000
  • Medicare: Accepts Medicare assignment
  • Hospital: Saint Mary's Hospital
  • Group practice: Trinity Health of New England Provider Network Organization Inc
  • Medical school: graduated 2012 (14 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hnin Hnin Oo, 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 Hnin Hnin Oo accept Medicare assignment?
Yes. Medicare's clinician data says Hnin Hnin Oo 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 Hnin Hnin Oo's NPI number?
1184008021. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Hnin Hnin Oo works

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

Group practices

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

  • Trinity Health of New England Provider Network Organization Inc653 clinicians in the group

Specialties

Find other Hospitalist doctors in Connecticut →

Other hospitalists in Waterbury

Clinicians with the same Medicare primary specialty in Waterbury, CT — not a recommendation.

All hospitalists in Waterbury →

Other clinicians in Trinity Health of New England Provider Network Organization Inc

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

Clinician information

CredentialMD
Graduation year2012 (14 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184008021
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