Accredited by the
Joint Commission


Michiana Behavioral Health is not just a hospital, it is an environment dedicated to helping patients restore their health and get a fresh start. Located in Plymouth, Indiana in a rejuvenating wooded setting, Michiana Behavioral Health provides each patient with comprehensive behavioral health treatment from compassionate and caring staff. We offer services to children, adolescents, adults and seniors on an inpatient and outpatient basis.

Robert Raster, M.D. 
Medical Director

Dr. Raster has been practicing Psychiatry in the Michiana area for 14 years. After graduating from The University of Notre Dame, Raster received a doctoral degree in medicine from Wayne State University in Detroit and served his residency at Northwestern University in Chicago. In 1997, he earned certification as a diplomate of the American Board of Psychiatry and Neurology.

John Zwerneman, M.D.
Child and Adolescent Unit Coordinator

Dr. Zwerneman attended medical school at the University of North Carolina in Chapel Hill, N.C. He received his undergraduate degree at New Mexico State University in Las Cruces, N.M., and his graduate degree at the University of Notre Dame in South Bend, Ind. Dr. Zwerneman has been practicing Psychiatry in the Michiana area for over 15 years. He also has extensive experience as a medical missionary in various countries including Israel and Grenada, West Indies.

Mallikarjun Patta, M.D.
Adult Unit Coordinator

Patta received his bachelor of medicine and bachelor of surgery from Sri Venkateswara University (SVU) in Tirupati, Andhra Pradesh, India.  He later received his master of medical sciences at the University of Leeds in the United Kingdom and performed his residency in psychiatry at the University of Chicago Hospitals, Chicago. He is board certified in general psychiatry and psychosomatic medicine and has been published in various publications including the British Journal of Psychiatry and Psychiatric Times.

Help is Just a Phone Call Away

We cannot offer diagnosis, counseling or recommendations online, but an Assessment and Referral specialist is available 24 hours/7 days a week at 574.936.3784. If you are currently experiencing an emergency, please dial 911 or go to the nearest emergency room.

If you prefer to contact us via email, please click here to fill out a request information form.