Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Cardiovascular Disease (Cardiology)

Christina Ronai, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Christina Ronai, MD is a cardiologist at 300 Longwood Ave, Boston, MA 02115. Phone: (617) 355-6000. Accepts Medicare assignment. NPI 1619131901. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Cardiologist (Medicare lists Cardiovascular Disease (Cardiology))
  • Address: 300 Longwood Ave, Boston, MA 02115 · Directions
  • Phone: (617) 355‑6000
  • Medicare: Accepts Medicare assignment
  • Hospital: Boston Children's Hospital
  • Group practice: Boston Childrens Heart Foundation Inc
  • Medical school: graduated 2008 (18 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Christina Ronai, 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 Christina Ronai accept Medicare assignment?
Yes. Medicare's clinician data says Christina Ronai 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 Christina Ronai's NPI number?
1619131901. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Christina Ronai works

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

Group practices

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

  • Boston Childrens Heart Foundation Inc100 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →

Other cardiologists in Boston

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

All cardiologists in Boston →

Other clinicians in Boston Childrens Heart Foundation Inc

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

Clinician information

CredentialMD
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619131901
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