Children’s ProgramAdult ServicesPartial Hospitalization Program

Our Medical Staff

Raymond Mays, MD          

Dr. MaysDr. Raymond Mays is Board Certified in Psychiatry. Dr. Mays has been working with River Crest since 1995, and has held several medical director positions throughout his career. Dr. Mays’ expertise includes depression, addiction, ADHD, and panic disorder. Dr. Mays is a graduate of Trinity University, San Antonio, and the University of Texas Medical Branch.



Annelise Arze, MD 

Arze2Dr. Arze comes to River Crest from Texas Tech Health Science Center, where she was an assistant professor in the Department of Psychiatry. Dr. Arze did her psychiatryresidency at Texas Tech. She earned her medical degree from the Universidad Mayor de San Simon in Cochabamba, Bolivia. She is board certified by the American Board of Psychiatry and Neurology



Mercy Mugalla, PMHNP-BC

mercyMercy is a Primary Mental Health Nurse Practitioner with primary care background in behavioral healthcare and additional nursing experience in rehabilitation and medical surgical settings. She comes to River Crest from Sweetser Behavioral Healthcare Services in Saco, Maine where she provided outpatient and inpatient mental health care to children and adolescents both in crisis and with chronic mental health conditions. Mercy received her Master’s Degree in the Child and Adolescent Psychiatric Mental Health Nurse Practitioner Program at the University of Rochester School of Nursing.

  Our Programs

River Crest Hospital offers various programs from child, adolescents, adults and military. For adults, we offer partial hospitalization program and detox & rehab.

  News & Events

View our upcoming events at River Crest Hospital

  Contact Us

It’s comforting to know that other people have problems similar to yours. It’s also comforting to know there’s a place you can go for support, guidance, and professional treatment. Contact our admissions staff at 800-777-5722.

Physicians are on the medical staff of River Crest Hospital, but, with limited exceptions, are independent practitioners who are not employees or agents of River Crest Hospital. The facility shall not be liable for actions or treatments provided by physicians.

Model representations of real patients are shown. Actual patients cannot be divulged due to HIPAA regulations.