New Search Gretchen Van Steenwyk-Marsh D.O. (530) 671-2020 Primary Specialties Family Practice Primary Office Address: Rideout Family Physicians 1233 Plumas Street, Suite A Yuba City, CA 95991 Web Page: RideoutFamilyPhysicians.org Recommend this Physician Get Directions Physician Bio Dr. Marsh has been a resident of the Yuba-Sutter area for over 20 years. A graduate of the College of Osteopathic Medicine of the Pacific, she is board certified in Family Medicine. She took time from practicing medicine to spend time at home with her sons. She is thrilled at the opportunity to serve and educate the families in our community. She has special interest in diabetes and NaPro Technology.