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

Dr. Stephen T Ang, MD

Individual provider Gastroenterology Physician · NPI 1346251071

Dr. Stephen T Ang, MD is a Gastroenterology in Centralia, Illinois. Graduated from University of California, Geffen School of Medicine in 1991, 35 years ago. Accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
35
Trained at
University of California, Geffen School of Medicine
Licensed in
IL
In the registry since
2006
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

1054 M L King Dr Ste 120
Centralia, IL 62801-3000
Phone: (618) 532-1688
Fax: (618) 532-1689
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X (IL)

Record details

NPI number1346251071
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 10, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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