Summary

Dr. Johnson graduated from the University of Cincinnati College of Medicine in 2007. He works in San Luis Obispo, CA and 3 other locations and specializes in Radiation Oncology and Internal Medicine. Dr. Johnson is affiliated with Adventist Health Sierra Vista, French Hospital Medical Center and California Mens Colony Hospital.

Quick Facts

  • accepting new patients
  • 19 years of experience
  • speaks English, Spanish
  • University Of Cincinnati College Of Medicine
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 3 hospital affiliations
  • 4 office locations
  • Male

Office Locations

Dr. Robert Ryn Johnson has 4 locations

San Luis Radiation Oncology Center

100 Casa St Ste CSan Luis Obispo, CA 93405
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

French Hospital Medical Center

1911 Johnson AveSan Luis Obispo, CA 93401

Sierra Vista Regional Medical Center

1010 Murray AveSan Luis Obispo, CA 93405

Sutter Health Palo Alto Medical Foundation Palo Alto Center

795 El Camino RealPalo Alto, CA 94301
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Robert Ryn Johnson, MD
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Dr. Robert Ryn Johnson, MDDr. Eric Jason Gray, MDDr. Joseph Stephen Yorke, MDDr. James Poole Cartland, MD
Radiation OncologyDiagnostic RadiologyHospital MedicineDiagnostic Radiology
Accepts New Patients
19 Years of Experience 9 Years of Experience 53 Years of Experience 39 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish
San Luis Obispo , CASan Luis Obispo , CASanta Maria , CATempleton , CA
Med School: University Of Cincinnati College Of Medicine Med School: University Of California Irvine College Of Medicine Med School: Keck School Of Medicine Of The University Of Southern California Med School: Medical University Of South Carolina College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Robert Ryn Johnson

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Robert Ryn Johnson has the following 2 specialties

Specialty Expertise

Dr. Robert Ryn Johnson has the following 2 areas of expertise

  • Cancer
  • Internal Medicine

Certifications, License, & Education

19 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

University Of Cincinnati College Of MedicineGraduated in 2007

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Frequently Asked Questions

Where is Dr. Robert Johnson's office located?
Dr. Robert Johnson's office is located at 100 Casa St Ste C, San Luis Obispo, CA, 93405.
Which hospitals is Dr. Robert Johnson affiliated with?
Dr. Robert Johnson is affiliated with Adventist Health Sierra Vista, French Hospital Medical Center, and California Mens Colony Hospital.
Does Dr. Robert Johnson accept my insurance?
You can see the insurance plans that Dr. Robert Johnson accepts on their Vitals profile.
Does Dr. Robert Johnson accept virtual/telehealth appointments?
Dr. Robert Johnson has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Robert Johnson speak?
Dr. Robert Johnson speaks English and Spanish.

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