Medical Staff

Dr. Christina Lasich MD, Medical Director
Dr. Christina Lasich, M.D. began her medical career after graduating from the University of California, Davis School of Medicine with honors. Her interests in orthopedics and physical therapy lead her to the field of Physical Medicine and Rehabilitation. This specialty field serves those with chronic conditions with an emphasis on improving quality of life and independence. After leaving residency training, she returned to her hometown of Grass Valley, CA to open her practice in 2001. She quickly found an underserved population of people with chronic pain, especially women in pain. Her life, her practice, and her book – High Heels To Hormones – all reflect a philosophy that pain is a signal for the individual to improve habits, life-style, and nutrition. She views pain as the ultimate motivator and that pain is also a doorway to transformation.

Dr. Jeffrey Knowles

Dr. Knowles joined CoRR in 2012 to help with the Diagnosis and Treatment of Addiction and Comorbid Disorders.  He is Board Certified in Adult Psychiatry.  He worked as a family practicioner before becoming certified in Addiction Medicine (ASAM) in 1988.  He returned to training at the University of Washington completing his Psychiatry Residency in 1999.  Most recently he has worked at the Sacramento VA Medical Center as an Addiction Psychiatrist dealing with complex issues which include PTSD, Depression, Anxiety and Substance Use Disorders.  He is on staff at University of California at Davis as an Assistant Clinical Professor.  His passion is identifying and continuing treatment of other issues especially trauma to help people move forward in their recovery from Addictive Disorders.


Dr. Aaron Cleveland

AAron-SuperDr. Cleveland, MD graduated from UC Davis Family Medicine Program in 2002.  He is a member of both The American Academy of Family Practice and The American Society of Addiction Medicine.  He is Board Certified in both Addiction Medicine and Family Medicine.  He has had publications as a newspaper columnist in the Mountain Democrat where he wrote on basic medical issues, as well as addiction; he has also published articles in the El Dorado Style Magazine and is soon to be published in the Psychiatric Times.  Dr. Cleveland has given several lectures throughout the state including an audience in front of The California State Director and Deputy Director of Drug, Osteopathic Physician and Surgeons Conference, and California Drug and Alcohol Counselors.

Dr. Cleveland, MD works for the Indian Health Service in treating Substance Dependency and General Medicine, as well as serving as Associate Clinic Director at the Roseville Campus within Community Recovery Resources.  His experience with musculoskeletal pain, psychiatry, chronic pain and addiction, in addition to his core training in Family Medicine makes Dr. Cleveland, MD uniquely qualified to serve CoRR at the highest capacity.

D. Cleveland’s overall approach is to optimize patient care by combining both holistic and allopathic medicine.  Overall, Dr. Cleveland has been serving CoRR for 6 years and is a valued asset to CoRR’s continued mission to serve those troubled with Substance Dependency.