Rogers Behavioral Health

Medical Staff Directory


As one of the largest multi-specialty behavioral health practices in the U.S., our patients have a care team committed to their individual road to success.

Our team is backed by strong medical and clinical leadership in a private, non-academic setting. More than 75 board-certified psychiatrists and 40 psychologists, are part of a medical staff of nearly 150 who are specialists in mental health and addiction who work as a team and partner with a premier multidisciplinary group of behavioral specialists, nurses, therapists, and dietitians.

Tatyana Siminak, MS, APNP, PMHNP-BC

Psychiatric Nurse Practitioner

Tatyana Siminak, MS, APNP, PMHNP, is a psychiatric nurse practitioner in West Allis where she works with adults in inpatient care and Mental Health and Addiction Recovery adult residential care.

Tatyana received her bachelor’s degree in Business Science and Accounting from the University of Phoenix. She then received an Associate Nursing Degree from Spokane Community College, in Spokane, Washington, and a Psychiatric Mental Health Nurse Practitioner degree in 2021 from Walden University.

Tatyana is a member of member of The American Nurse Association and is bilingual in English and Russian. She is passionate about reducing mental health stigma, addiction treatment in vulnerable population and immigrants. In her free time, she likes to read, cook, hike, and spend time with husband, children, and two furry babies.

Staff Directory

Call 800-767-4411 or go to to request a free screening.