Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Peter Youk-Twoo Chang, MD

Individual provider Gastroenterology Physician · NPI 1366426264

Dr. Peter Youk-Twoo Chang, MD is an Internal Medicine in Nanuet, New York. Graduated from New York Medical College in 1986, 40 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
40
Trained at
New York Medical College
Licensed in
NY
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Old Turnpike Rd Ste 605
Nanuet, NY 10954-2461
Phone: (845) 623-8400
Fax: (845) 623-2451
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 171437 (NY)

Record details

NPI number1366426264
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 5, 2005
Last updated in NPPESDecember 20, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1986 (40 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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