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. Robert Sosa:

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Specialties & Research

Dr. Robert Sosa, MD is board certified in Internal Medicine.

Education & Awards

Dr. Sosa graduated from Saint Louis University.


Dr. Sosa has 2 hospital affiliations:

  • Kaiser Foundation Hospital - Martinez/Walnut 
  • Kaiser Foundation Hospital - Walnut Creek 


  • Spanish

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Additional Information
Dr. Robert Joseph Sosa MD is a male Internist, has 15 years of experience and practices in Internal Medicine.
Where does Dr. Robert J. Sosa practice?
Dr. Robert Sosa has 1 office location.
Dr. Robert Sosa practices Internal Medicine near Walnut Creek, CA.
See Walnut Creek Internists.