Browse Health
Internist, Preventive Medicine / Wellness
24 years of experience
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).

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Specialties & Research

Dr. John Schaller, MD, MPH is board certified in Internal Medicine and Occupational Medicine.


Education & Awards

Dr. Schaller graduated from University of Arizona, Tucson.


> > > > Dr. John Schaller, MD, MPH

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Additional Information
Dr. John Lawrence Schaller MD and MPH is a male Internist, has 24 years of experience and practices in Internal Medicine, Occupational Medicine, and Public Health.
Where does Dr. John L. Schaller practice?
Dr. John Schaller has 2 office locations.
Dr. John Schaller practices Internal Medicine, Occupational Medicine, and Public Health near Phoenix, AZ.
See Phoenix Internists and Phoenix Preventive Medicine Specialists.