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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. Timothy Ryan:

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Specialties & Research

Dr. Timothy Ryan, DO, MD is board certified in Emergency Medicine.

Education & Awards

Dr. Ryan graduated from University of Minnesota, Twin Cities, Minneapolis.


Dr. Ryan has 3 hospital affiliations:

  • Glendale Memorial Hospital and Health Center 
  • John Muir Medical Center-Concord Campus 
  • Providence Little Coof Mary 


  • English

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Additional Information
Dr. Timothy Matthew Ryan DO and MD is a male Emergency Medicine Specialist, has 16 years of experience and practices in Emergency Medicine.
Where does Dr. Timothy M. Ryan practice?
Dr. Timothy Ryan has 3 office locations.
Dr. Timothy Ryan practices Emergency Medicine near Torrance, CA.
Additional practice locations include: Glendale, CA.
See Torrance Emergency Physicians.