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

Warren Jeffrey Chang, MD

Individual provider Ophthalmology Physician · NPI 1902888662

Warren Jeffrey Chang, MD is an Ophthalmology in Bloomington, Indiana. Graduated from Harvard Medical School in 1992, 34 years ago. Practices with Integ Health System PC, an 8-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
34
Trained at
Harvard Medical School
Licensed in
IN
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

1011 W 2nd St
Bloomington, IN 47403-2216
Phone: (812) 334-1213
Fax: (812) 333-5039
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence IN01052241 (IN)

Record details

NPI number1902888662
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 17, 2005
Last updated in NPPESFebruary 14, 2012

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1992 (34 years in practice)
Group practice Integ Health System Pc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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