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License & Identifications

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. Joel Katz:

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Specialties & Research

Dr. Joel Katz, MD is board certified in Internal Medicine.

Education & Awards

Dr. Katz graduated from New York University.


Dr. Katz has 1 hospital affiliations:

  • Hoag Memorial Hospital Presbyterian 


  • Spanish

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Additional Information
Dr. Joel Alan Katz MD is a male Internist, has 15 years of experience and practices in Internal Medicine.
Where does Dr. Joel A. Katz practice?
Dr. Joel Katz has 2 office locations.
Dr. Joel Katz practices Internal Medicine near Newport Beach, CA.
Additional practice locations include: Irvine, CA.
See Newport Beach Internists.