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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. Ricardo Hahn:

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Specialties & Research

Dr. Ricardo Hahn, MD is board certified in Family Medicine.

Education & Awards

Dr. Hahn graduated from University of Washington, Seattle.


Dr. Hahn has 11 hospital affiliations:

  • San Gabriel Valley Medical Center 
  • Valley Presbyterian Hospital 


  • Spanish
  • German

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Additional Information
Dr. Ricardo Guillermo Hahn MD is a male Family Practitioner, has 38 years of experience and practices in Family Medicine.
Where does Dr. Ricardo G. Hahn practice?
Dr. Ricardo Hahn has 4 office locations.
Dr. Ricardo Hahn practices Family Medicine near Los Angeles, CA.
Additional practice locations include: San Gabriel, CA.
See Los Angeles Primary Care Doctors.