At the Behavioral Health Program at New West Physicians, our mission is to provide readily accessible and quality healthcare to children, adolescents, adults, and families in an atmosphere that promotes trust, compassion, and respect.  Our team of practitioners provides a broad range of  integrated services to who will work with you to give you the tools needed for recovery.

We are located at the Specialty Center in Lakewood, Colorado.

Dr. Harrison completed her Doctor of Medicine degree at the University of Illinois at Chicago College of Medicine, and her residency training in Park Ridge, Illinois at Advocate Lutheran General Hospital. She is dedicated to providing expert psychiatric care through active listening, exhibiting compassion, and taking a collaborative approach to treatment planning. As a board certified psychiatrist, Dr. Harrison has specialized skills and knowledge to diagnose and treat all adult mental health conditions, but her areas of interest include depression, anxiety, bipolar disorder, and psychosis.

Dr. Oseroff has been a psychiatrist for over thirty years. He is Board Certified in Adult Psychiatry and Child and Adolescent Psychiatry. In the office his intention is to listen attentively and respectfully, complete a thorough assessment and form a partnership with his patients focused on improving their emotional and physical well-being.

Lisa is a board certified Clinic Nurse Specialist in Adult Psychiatric and Mental Health Nursing. She brings her expertise in psychiatric illnesses, substance abuse and eating disorders to the treatment of adult patients. Lisa completed her Master of Nursing degree in Psychosocial Nursing at the University of Washington in Seattle. Her sub-specialty is Substance Abuse, with an emphasis on eating disorders. In her free time, Lisa enjoys hiking, gardening, cooking, jewelry making and spending time with her husband, son and friends. Lisa enjoys hiking, gardening, cooking, jewelry making and spending time with her husband, son and friends.

New West Physicians Specialty Center

Mark Henningsen,
LPC, CACIII

Mark holds’ a Master’s degree in Agency Counseling from the University of Northern Colorado. He is a Licensed Professional Counselor and a Certified Addiction Counselor. Mark specializes in addiction counseling and teaches mindfulness-based stress reduction techniques for anxiety, and depressive disorders.

New West Physicians Specialty Center-Behavioral Health Team

Lynn Leventhal,  LCSW

Lynn has a Master’s in Social Work from the University of Denver with specialties in the Aging Process and Chemical Dependency. Lynn has been in private practice since 1993. She has a wide range of experience with specialties including drugs and alcohol, addiction, mood disorders, anxiety, grief and loss, chronic illness, pain management, stress, relationship issues, life transitions including retirement, aging, and occupational problems.

New West Physicians Specialty Center-Behavioral Health Team

Ron Morley,  M.D.

Dr. Morley completed his general psychiatry training and his sub-specially training in child and Adolescent Psychiatry at the University of Colorado. He is double Board Certified in Adult Psychiatry and in Child and Adolescent Psychiatry.

New West Physicians Specialty Center-Behavioral Health Team

Janice Barbee,
MA, LPC, CACIII

Janice has a Master’s degree in Psychotherapy from Naropa University and is licensed by the state of Colorado as a professional Counselor, and Certified Addictions Counselor III. She works primarily with adults on a variety of issues including grief and loss, anxiety, depression and problems related to substance/alcohol use or abuse.