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

Mark K Chang, MD

Individual provider Orthopaedic Surgery Physician · NPI 1871607507

Mark K Chang, MD is an Orthopedic Surgery in Dyer, Indiana. Graduated from Medical University of South Carolina College of Medicine in 1990, 36 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Indiana.

Years since qualifying
36
Trained at
Medical University of South Carolina College of Medicine
Licensed in
IL, IN
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1100 Joliet St Ste 104
Dyer, IN 46311-1996
Phone: (219) 836-4955
Fax: (219) 865-2377
Show map & directions

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

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 036095817 (IL)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 200033540A (IN)

Record details

NPI number1871607507
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 19, 2006
Last updated in NPPESFebruary 5, 2025
Certification dateFebruary 5, 2025
Mailing address1100 Joliet St, Ste 104, Dyer, IN 46311-1996

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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