A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Gregory Chang:
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Specialties & Research
Dr. Gregory Chang, MD is board certified in Neurology.
He has special expertise in 4 Areas, including Brain Disorder, Brain Ischemia, and Coma.1 more special expertise area
More Specialties & Research
Education & Awards
Dr. Chang graduated from University of California at San Diego, La Jolla.More Education & Awards
Dr. Chang has 10 hospital affiliations:
- Los Angeles County + University of Southern California Medical Center
- CHANDLER REGIONAL Medical Center
Accepted Insurance Plans
Dr. Chang accepts these health insurances in at least one office:
- Health Choice Arizona - 1 plan
- Humana - 16 plans
- Cigna - 6 plans
- United Healthcare - 16 plans
- Unicare - 12 plans
- CaIOPTIMA - 5 plans
- Anthem Blue Cross - 3 plans
- Blue Shield of California - 77 plans
More Accepted Insurance
Similar doctors nearby
- Additional Information
- Where does Dr. Gregory Y. Chang practice?
Dr. Gregory Chang practices Neurology and Clinical Neurophysiology near Phoenix, AZ.
Additional practice locations include: Orange, CA.
See Phoenix Neurologists.