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

Individual provider Internal Medicine Physician · NPI 1871171561

Dr. Changtai Tian, MD is an Internal Medicine Physician in Stony Brook, New York. Works from 2 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
Specialties on file
3
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

101 Nicolls Rd
Stony Brook, NY 11794-3806
Phone: (631) 689-8333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 600 S Paulina St Ste 403, Chicago, IL 60612-3806 — (312) 942-7100

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 125-077594 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125.077594 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1871171561
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2021
Last updated in NPPESJune 19, 2024
Certification dateJune 19, 2024

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