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

Pediatric Medicine

Haiyun Gong

Sees patients in Boston, MA · Massachusetts

Summary

Haiyun Gong is a pediatrician at 800 Washington St, Boston, MA 02111. Phone: (617) 636-5000. Accepts Medicare assignment. NPI 1336461656. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 800 Washington St, Boston, MA 02111 · Directions
  • Phone: (617) 636‑5000
  • Medicare: Accepts Medicare assignment
  • Group practice: Pratt Pediatric Associates Inc
  • Medical school: graduated 1991 (35 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Haiyun Gong, 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 Haiyun Gong accept Medicare assignment?
Yes. Medicare's clinician data says Haiyun Gong 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 Haiyun Gong's NPI number?
1336461656. 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 Haiyun Gong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Pratt Pediatric Associates Inc7 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in Massachusetts →

Other pediatricians in Boston

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

All pediatricians in Boston →

Other clinicians in Pratt Pediatric Associates Inc

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

Clinician information

Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336461656
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