Yubadocs has a clinician staff that includes physicians and advanced practice clinicians, or APC’s. APC’s include nurse practitioners and physician assistants.  Nurse practitioners (NP’s) are registered nurses who have received a master’s degree in patient care.  Many have specialized in family medicine, and are also called family nurse practitioners (FNP’s).   Our FNP’s and PA’s have passed national certification exams, indicated by the “C” after their degree, and are supervised by the physicians on staff.  If you would like to see a specific clinician, you can call for an appointment with that person. 

Andrea Harris, MD


Dr. Harris earned a BA in Biochemistry from UC Santa Barbara. She graduated and completed her Emergency Medicine residency training at Wayne State University Medical School in Detroit. Her love for the mountains and her roots in California brought her back home to the Sierra Foothills in1994. Board certified in Emergency Medicine, she brings nearly 20 years of practice experience to Yubadocs. She enjoys being an integral part of our local medical community. Her outside interests include spending time with her son, family and friends; hiking with her dogs; kayaking; and enjoying the beautiful environment in which we all live.

Roger Hicks, MD


Dr. Hicks, Yubadocs Medical Director, earned his BA from Brown University and his MD from Cornell University Medical College.  He completed his Family Practice residency at UC Davis, and became board certified in Family Practice and Emergency Medicine.  He was a Director of the Urgent Care Association of America from 2011 to 2017, and served on its Executive Committee, and as its Treasurer and then Secretary. He is currently the President of the Urgent Care Association of California.  Drawn to Nevada County by the Yuba River, he is the founding president of SYRCL, the South Yuba River Citizens League.  He and his wife, Linda Rachmel, RN, opened Yubadocs in August 2000.


Marcella Pierce, PA-C earned a BA in Biology and a BA in Psychology from UC Santa Cruz. After earning a Master of Public Health degree from Johns Hopkins University, Marcy lived in Indonesia and worked in the field of public health for fourteen years. She earned a Master of Physician Assistant degree from Samuel Merritt University, and returned to California to practice as a Physician Assistant. Marcy settled in this area because of its natural beauty, her great love for the outdoors and the opportunity to apply her skills and commitment to serving individuals and families in this amazing community. 

Marcus rhodenHill, PA-C

Marcus RhodenHIll, L.Ac. PA-C received his BA in Biology from Metropolitan State University of Denver, and started his career in healthcare as an EMT. He went on to earn two Master’s degrees: one in Chinese Medicine from the Five Branches University, and the other in Physician Assistant Sciences from Loma Linda University. Marcus is also a certified whitewater kayaking instructor, and a swift water rescue instructor. He spends his time in the mountains rock climbing, mountain biking, snowboarding, and kayaking with his wife and two children.

Trevor L. Nichols, PA-C graduated with honors from the University of Southern California Keck Schools of Medicine in 2000. During his nineteen years of local practice he has worked eight years in family medicine, five years in emergency medicine and seven years in urgent care. During this time he has proctored several student in each specialty. His interest in the outdoors brought him to Nevada County in 2000. Since that time he has developed a passion for the natural beauty and culture of our community and appreciates the opportunity to help others. During his free time Trevor enjoys mountain biking, playing guitar, cooking, gardening, home improvement and local music.

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