Sierra Tucson staff doctors (left to right): Jerry Lerner, M.D.; Derek Schumm, M.D.; Christopher J. Petro, M.D.; Robert R. Johnson, D.O.; James Duffy, M.D., FANPA, FAAHPM, DABMA; Harry Goldwasser, M.D.;James Seymour, M.D.
At Sierra Tucson, we believe that quality medical care should never be a part-time responsibility. Unlike many residential recovery programs (which contract with local physicians to provide limited on-site consultations), we have an on-site team of seven staff physicians whose sole focus is providing world-class treatment to our patients.
When you enter treatment with us, you can rest assured that you will receive the quality medical care that you deserve every single day.
Having this team of talented and dedicated medical professionals on site every day also allows for ongoing communication and collaboration — which means that patient care is always provided in both a comprehensive and highly coordinated manner.
Robert R. Johnson, D.O., has served as Medical Director of Sierra Tucson since April 2008. Board-certified in Psychiatry and Addiction Medicine, Dr. Johnson’s previous roles include Senior Medical Director of College Hospital (a 140-bed facility) for ten years, Vice President for Medical Affairs of College Health IPA, and Behavioral Health consultant for public and private mental health organizations.
Dr. Johnson has done research on psychopharmacology, depression, immune functioning in psychiatric patients, and physical illnesses that produce psychiatric symptoms. He lectures nationally and internationally.
James Duffy, M.D., FANPA, FAAHPM, DABMA
Psychiatrist, Chief of Integrative Medicine
Dr. James Duffy is a graduate of the University of Rhodesia and completed his residency in Psychiatry at Brown University. He then completed Fellowships in Neuropsychiatry at Brown and Harvard. Dr. Duffy has held full professorships at Cornell, University of Texas, and University of Connecticut. He is an elected Fellow of the American Neuropsychiatric Association and also the American Academy of Hospice and Palliative Medicine.
Prior to joining Sierra Tucson in July 2010, Dr. Duffy was Professor of Psychiatry at M.D. Anderson Cancer Center and the University of Texas, and President of the Institute for Spirituality and Health at the Texas Medical Center. Dr. Duffy is Board-certified in adult psychiatry, psychosomatic medicine, integrative medicine, and medical acupuncture.
Dr. Harry Goldwasser, a Board-certified Psychiatrist, has served patients at Sierra Tucson since 2007. His training includes a tour of great southern public institutions: undergraduate degrees in English Literature and Genetics at the University of Georgia; medical school at the University of Alabama in Birmingham and Tuscaloosa and, finally, internship and residency in psychiatry at the University of North Carolina in Chapel Hill.
Dr. Goldwasser has a compelling professional interest in helping others who suffer with psychiatric and addictive diseases. As a physician who has gone through treatment, Dr. Goldwasser brings a real understanding of the struggle that getting clean takes but the reward and serenity that recovery brings.
Wisconsin born and raised, Dr. Jerry Lerner received his medical education and specialty training at the Medical College of Wisconsin. He is Board-certified in Physical Medicine and Rehabilitation and a diplomate of the American Academy of Pain Management. Dr. Lerner has investigated pain from many perspectives.
Dr. Lerner brings a quarter century of clinical and leadership experience to his work. He is the former medical director of Sacred Heart Rehabilitation Hospital, Mount Carmel Health and Rehabilitation Center, Performance Enhancement Rehabilitation, and The Center for Integrative Pain and Rehab.
Dr. Derek Schumm earned his medical degree from the University of Kansas Medical School and completed his residency in General Psychiatry at the University of Arizona Health Sciences Hospital, where he served as Chief Resident his senior year. During residency he received specialized training in mind-body medicine, cognitive behavioral therapy for groups, gestalt therapy, and psycho-oncology.
Dr. Schumm’s professional interests include integrative psychiatry, trauma recovery, addiction medicine, and the connection between Eastern philosophy and Western psychotherapy. Dr. Schumm is a Board-eligible Psychiatrist and belongs to several professional organizations including The American Academy of Addiction Psychiatry and The Association for Transpersonal Psychology.
Dr. James Seymour joined Sierra Tucson’s staff in June 2010. He received his medical degree from the University of Tennessee and completed his psychiatric residency at the University of Virginia in 1983. He studied for three years with the American Institute of Short Term Dynamic Psychotherapy and has practiced in both inpatient and outpatient settings.
His special areas of interest include addictions, eating disorders, trauma recovery, and both Cognitive-Behavioral Therapy and Dialectical Behavior Therapy. Dr. Seymour believes strongly in the resilience of the human spirit and sees the role of the psychiatrist as assisting the person in removing obstacles to the natural healing and recovery process.
For extended biographies of our team of physicians, and for information about all other members of the Sierra Tucson team, please visit our Staff page.
To get help for yourself or a loved one, call us at 800-842-4487 or fill out our confidential online contact form.