


Dr. Clayton Hess, MD
Dr. Clayton Hess, MD is a radiation oncologist in Grass Valley, CA and has over 10 years of experience in the medical field. He graduated from Penn State University College of Medicine in 2011. He is affiliated with medical facilities Oroville Hospital and Sierra Nevada Memorial Hospital. He is accepting new patients and telehealth appointments.
Practice
300 Sierra College Dr Ste 150 Grass Valley, CA 95945Make an Appointment
At a Glance
- Area of Expertise
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

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Dr. Hess' Reviews
Likelihood to recommend Dr. Hess
5.0
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How was your experience with Dr. Hess?Overall Patient Satisfaction
Likelihood of recommending Dr. Hess to family and friends is 5 out of 5
About Me
care philosophy
Excellence? in everything.biography
California native. MD MPH. Well educated. Highly trained. Technically skilled. Extensively published. Professionally personable. Dedicated researcher. Commited scientist. Efficient innovator. Careful communicator. Patient advocate. Community leader.Radiation Oncology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
University Of Texas /austin Campus
Internship HospitalPostdoctoral Fellowship Emory University Microbiology And Immunology
2020Dana-farber Canc Inst
2019Dana-farber Cancer Institute Neuro-oncology K12 Research Fellowship
2019Harvard T.h Chan School Of Public Health (mph)
2019Massachusetts Gen Hospital
Fellowship Hospital, 2018University California, Davis
Residency Hospital, 2016University Of California, Davis
Residency Hospital, 2016University Of Texas-austin
Internship Hospital, 2012Penn State University College Of Medicine
Medical School, 2011Brigham Young University (byu) Provo, Ut
Undergraduate School, 2007Brigham Young University (byu)- Provo, Ut
Undergraduate School, 2006
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Affiliated Hospitals
- Recipient of 1
hospital awardView all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
78%Patients said that nurses always listened to them and explained things well3% higher than the national average
- Recipient of 6
hospital awardsView all awardsPatient Safety Excellence Award™ (2025, 2024, 2023)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
80%Patients said they were given information about recovering at home4% lower than the national average
65%Patients said that doctors always listened to them and explained things well11% lower than the national average
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Providers shown based on Dr. Hess' location and specialty. Show more Radiation Oncologists.
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