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. Hui-Yen Chang:
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Specialties & Research
- He has special expertise in 2 areas:
- Diabetes Complications
Education & Awards
Dr. Chang graduated from Taipei Medical University.
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- Additional Information
- Dr. Hui-Yen B Chang MD is a male Internist, has 45 years of experience and practices in Internal Medicine.
- Where does Dr. Hui-Yen B. Chang practice?
- Dr. Hui-Yen Chang has 1 office location.
Dr. Hui-Yen Chang practices Internal Medicine near Merced, CA.
See Merced Internists.