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

Gastroenterology

Longyue L. Cao

Sees patients in Boston, MA · Massachusetts

Summary

Longyue L. Cao is a gastroenterologist at 300 Longwood Ave, Boston, MA 02115. Phone: (617) 355-6000. Accepts Medicare assignment. NPI 1922502228. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 300 Longwood Ave, Boston, MA 02115 · Directions
  • Phone: (617) 355‑6000
  • Medicare: Accepts Medicare assignment
  • Group practice: Children's Hospital Pediatric Associates, Inc
  • Medical school: Albert Einstein College Of Medicine Of Yeshiva University · graduated 2018 (8 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Longyue L. Cao, 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 Longyue L. Cao accept Medicare assignment?
Yes. Medicare's clinician data says Longyue L. Cao 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 Longyue L. Cao's NPI number?
1922502228. 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 Longyue L. Cao is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Longyue L. Cao as a member of this group (CMS data updated October 2, 2026).

  • Children's Hospital Pediatric Associates, Inc328 clinicians in the group

Specialties

Find other Gastroenterology doctors in Massachusetts →

Other gastroenterologists in Boston

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

All gastroenterologists in Boston →

Other clinicians in Children's Hospital Pediatric Associates, Inc

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

Clinician information

Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922502228
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