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Primary Care Doctor, General Practitioner, Internist
30 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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Additional Information
Dr. Ruben Delfino Ustaris MD is a male General Practitioner, has 30 years of experience and practices in General Practice and Internal Medicine.
Where does Dr. Ruben D. Ustaris practice?
Dr. Ruben Ustaris has 2 office locations.
Dr. Ruben Ustaris practices General Practice and Internal Medicine near Tustin, CA.
Additional practice locations include: Los Angeles, CA.
See Tustin Primary Care Doctors and Tustin Internists.