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

Internal Medicine

Chien K. Chiang, MD

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

Summary

Chien K. Chiang, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in New York, NY and Flushing, NY. NPI 1255341723. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Chien K. Chiang, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
State University Of New York At Stony Brook, School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Chien K. Chiang see patients?
Medicare's clinician data lists 2 practice locations, including New York, NY and Flushing, NY. Call before your visit to confirm the address.
What is Chien K. Chiang's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Gastroenterology.
Does Chien K. Chiang accept Medicare assignment?
Yes. Medicare's clinician data says Chien K. Chiang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Chien K. Chiang?
(212) 941-7856, as listed in official Medicare / NPI Registry data.
What is Chien K. Chiang's NPI number?
1255341723. 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 Chien K. Chiang is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

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

All internal medicine doctors in New York →

Clinician information

CredentialMD
Medical schoolState University Of New York At Stony Brook, School Of Medicine
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255341723
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 2026-10-02, retrieved 2026-10-29
  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