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Internist, Oncology Specialist (cancer)
15 years of experience
Accepting new patients
Video profile
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).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Charles Ryan is Good. Dr. Ryan has been reviewed by 4 patients who have provided 1 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 2.8
Courteous Staff 3.2
Accurate Diagnosis 3.2
Bedside Manner 3.7
Spends Time with Me 3.2
Follows Up After Visit 3.0

Specialties & Research

Dr. Charles Ryan, MD is board certified in Medical Oncology.

  • He has special expertise in 5 areas:
  • Cancer
  • Epidemiology
  • Prostate Cancer (Prostatic Neoplasm)
  • Urogenital Cancer (Genitourinary)
  • Urologic Cancer

Education & Awards

Dr. Ryan graduated from University of Wisconsin at Madison.


Dr. Ryan has 4 hospital affiliations:

  • UCSF Medical Center / Moffitt-Long Hospitals 
  • Medical Center at UCSF 


  • Spanish

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Additional Information
Dr. Charles James Ryan MD is a male Internist, has 15 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Charles J. Ryan practice?
Dr. Charles Ryan has 3 office locations.
Dr. Charles Ryan practices Internal Medicine and Medical Oncology near San Francisco, CA.
See San Francisco Internists and San Francisco Oncologists.