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

Dr. Ian Chang, DO

Individual provider Internal Medicine Physician · NPI 1407116411

Dr. Ian Chang, DO is an Internal Medicine Physician in Orange, California. Works from 2 locations. Licensed in California and Michigan.

Licensed in
CA, MI
In the registry since
2012
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

101 The City Dr S Bldg 30
Orange, CA 92868-3201
Phone: (714) 456-7720
Show map & directions

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

Additional practice locations (1)

  • 804 Service Road, East Lansing, MI 48824 — (517) 353-4941

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 20A16850 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5101019682 (MI)

Record details

NPI number1407116411
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 23, 2012
Last updated in NPPESMarch 29, 2023
Certification dateMarch 29, 2023
Mailing address200 S Manchester Ave Ste 300, Orange, CA 92868-3219

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