About Us

About Us

Dr. Waterbrook's Philosophy

A prominent part of Waterbrook’s practice is his emphasis on treating the whole patient — not just whatever physical challenge the patient brings. “I like the motto of the medical school at Loma Linda University, which is To Make Man Whole``. In fact, along with helping patients deal with the emotional aspects of their diagnosis and treatments, I have integrated prayer into my general surgery practice, as long as the patient is comfortable with it. I tend to let my patients lead”. As a Seventh Day Adventist Christian, I view Jesus Christ as “the Great Physician” and I try my best to emulate Christ’s model as a healer, preacher, and teacher. Especially when they face health challenges, many patients must contend with emotional and spiritual concerns. “There can be a lot of anxiety. I try to provide support by exploring the patient’s support systems, and how they and their families are handling a diagnosis and treatment that may include surgery, radiation, or chemotherapy. I can help them plug into a breast cancer support group, or assist them in navigating their emotions. I try to help them understand what they’re facing, offer support, and if appropriate I pray with them. ”There have been studies that assert the positive impact of prayer in healing, but I am content to simply witness the comfort it can bring to patients. “To me, it’s an individual patient experience, and very personal. “I’ve never seen prayer do any harm; I’ve only seen it help. ”Sometimes, a physical cure is just not possible. But emotional and spiritual healing is”. In fact, I nearly took a spiritual path. While an undergrad at the University of Michigan, I struggled between choosing the ministry and becoming a physician. I prayed over it and fasted. In the end, I felt led to medicine. I knew that through medicine I would help heal a patient’s body, but as a physician, I could also address their emotional and spiritual concerns.

Why Grass Valley

Dr. Waterbrook loves small towns, pine trees, hiking, mountain biking, walking, and water and snow skiing. That may explain why he and his wife, Katie and their young children selected Grass Valley as the location for his general surgery practice. And it didn’t hurt that it was closer to the grandparents. Before moving to Grass Valley Dr. Waterbrook previously practiced in Dayton, Ohio.

Meet Our Team

Tammy Hughes

Tammy CPC, CPPM Tammy brings 28 years of experience in the medical field to our office. She is a Certified Professional Coder
and a Certified Professional Practice Manager. She enjoys the challenges the medical profession brings. She is married to her husband of 35 years, they have two grown children and three grandchildren. In her spare time she enjoys biking, kayaking, crafting and spending time in her gardens.


Kristi has been a resident of Nevada County for 30 years. She has been working in the medical field for the past 28 years, from convalescent to newborn babies, medical billing and now with patients needing surgery . She is married to her husband of 24 years and has 2 grown children and a new grandbaby. She loves the great outdoors, kayaking, and live music events.

Professional Affiliations

Fellow of the American College of Surgeons
California Medical Association
Placer-Nevada County Medical Society
Loma Linda University Alumni -Lifetime member
Association of International Medical Services


Sierra Nevada Memorial Hospital
155 Glasson Way
Grass Valley CA 95945
(530) 274-6000

Grass Valley Surgery Center
408 Sierra College
Grass Valley CA 95945
(530) 271-2282

Wound Healing and Hyperbaric Medicine Center
300 Sierra College Drive, Suite 270
Grass Valley Ca 95945
(530) 272-8619

Our Office