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).
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Yih Chang is Excellent.
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Specialties & Research
Dr. Yih Chang, MD is board certified in Internal Medicine.
- He has special expertise in 2 areas:
- Diabetes Mellitus
Education & Awards
Dr. Chang graduated from University of Miami .
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- Additional Information
- Dr. Yih Chang MD is a male Internist, has 22 years of experience and practices in Internal Medicine.
- Where does Dr. Yih Chang practice?
- Dr. Yih Chang has 1 office location.
Dr. Yih Chang practices Internal Medicine near Martinez, CA.
See Martinez Internists.