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).
Our records indicate this doctor is retired.
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Specialties & Research
Dr. Lennig Chang, MD is board certified in Internal Medicine and Rheumatology.
- He has special expertise in 4 areas:
- Hip Osteoarthritis
- Knee Osteoarthritis
- Osteoarthritis (Hand and Wrist)
- Rheumatic Diseases
Education & Awards
Dr. Chang graduated from University of California at San Francisco.
Dr. Chang has 11 hospital affiliations:
- Beth Israel Deaconess Medical Center
- Faulkner Hospital
Accepted Insurance Plans
Dr. Chang accepts these health insurances in at least one office:
- Tufts Health Plans - 6 plans
- United Healthcare - 19 plans
- Blue Cross Blue Shield of Massachusetts - 16 plans
- Unicare - 12 plans
- Evercare - 3 plans
- Cigna - 14 plans