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.

Nathan Valentine, MD, FAPA

Medical Director, Herrington Center for Mental Health and Addiction Recovery, Psychiatrist

Nathan Valentine, MD, FAPA, is board-certified in addiction medicine and general psychiatry who serves as the medical director of the Herrington Center for Mental Health and Addiction Recovery at Rogers Behavioral Health in Oconomowoc.

Dr. Valentine earned his bachelor’s degree from the University of Missouri and his medical degree from the University of Illinois College of Medicine. He completed his residency program in psychiatry at the University of Wisconsin. Prior to coming to Rogers, he worked as a psychiatrist in the greater Milwaukee area, providing treatment for substance use disorders and other mental health problems at inpatient, residential, partial hospitalization, and intensive outpatient levels of care. He also worked as an adjunct clinical faculty member for the UW-Madison School of Nursing for psychiatric mental health nurse practitioner students.

Dr. Valentine is a member of the American Academy of Addiction Psychiatry, and a fellow of the American Psychiatric Association.

Staff Directory

All Medical staff
Campus and Regional Medical Directors
Medical Directors
Clinical Directors

Stephanie Eken, MD, FAAP

Assistant Chief Medical Officer and Medical Director, Outpatient Services

Stephanie C. Eken, MD, FAAP, is a board-certified child and adolescent psychiatrist, adult psychiatrist, and pediatrician. Dr. Eken serves as assistant chief medical officer and medical director ...
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Sean LeNoue, MD

Associate Medical Director, Outpatient Services, Northern and Eastern Service Areas, Psychiatrist

Sean LeNoue, MD, is the associate medical director for Outpatient Services at Rogers Behavioral Health. Dr. LeNoue is a child/adolescent, adult, and addiction psychiatrist, who focuses on the ...
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Christopher Lowden, MD

Associate Medical Director, Outpatient Services, Central Service Area

Christopher Lowden, MD, is a board-certified psychiatrist who works with adults enrolled in the Depression Recovery, Mental Health and Addiction Recovery, and OCD and Anxiety partial ...
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Khazi A. Muqeet, MD, MRCPsych

Medical Director, West Allis and Herrington Center for Mental Health and Addiction Recovery, Psychiatrist

Khazi A. Muqeet, MD, is a board-certified adult and forensic psychiatrist who specializes in the treatment of major mental illnesses and addiction. He serves as medical director of Rogers ...
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Brad E. R. Smith, MD

Medical Director, Oconomowoc Campus and Eating Disorder Recovery, Psychiatrist

Brad E. R. Smith, MD, is a full-time psychiatrist and serves as the medical director for Rogers' Oconomowoc campus as well as the medical director of Eating Disorder Recovery. He is ...
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Christopher Takala, DO

Medical Director, Brown Deer and Child and Adolescent Services, Psychiatrist

Christopher Takala, DO, is a board-certified psychiatrist who serves as the medical director of Rogers' Brown Deer campus as well as the medical director of Child and Adolescent services. Prior to ...
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Medical Staff Directory

Nathan Valentine, MD, FAPA

Medical Director, Herrington Center for Mental Health and Addiction Recovery, Psychiatrist

Taryn Abrams, MD

Psychiatrist

Lara Adeyemi, DNP, MSN, APRN, AGPCNP-C, PMHNP-BC

Psychiatric Nurse Practitioner

Richa Aggarwal, MD

Psychiatrist

Camila Albuquerque De Brito Gomes, MD

Psychiatrist

Shamim Anwar, MD

Psychiatrist

Brenda Bailey, PhD

Executive Director of Clinical Services for Inpatient and Residential Services, Psychologist

Tatjana Barisic-Dujmovic, MD

Psychiatrist

Benjamin Beaumont, MPAS, PA-C

Psychiatric Physician Assistant

Jodi Bellas, MSN, RN, APNP, PMHNP-BC

Psychiatric Nurse Practitioner

Alexandra Bertone, MSN, RN, PMHNP-BC

Psychiatric Nurse Practitioner

Lynn Bertram, MD

Psychiatrist

Cashana Betterly, MD

Psychiatrist

Morgan Borine, MA, MS, PMHNP-BC

Psychiatric Nurse Practitioner

Elizabeth Borst, MSN, PMHNP-BC

Psychiatric Nurse Practitioner

Jenna Bowen, MD

Psychiatrist

Hilary Boyd, MSN, RN, APNP, PMHNP-BC

Psychiatric Nurse Practitioner

Matthew Boyer, MD

Psychiatrist

Holly Brady, APRN, DNP, PMHNP-BC

Psychiatric Nurse Practitioner

Keri Brown, PhD

Clinical Director, Psychologist

Andrew Butchart, DO

Psychiatrist

Alicea Byrne, MSN, APNP, PMHNP-BC

Psychiatric Mental Health Nurse Practitioner

Beth Calvert, APNP

Psychiatric Nurse Practitioner

Julia Carbonella, PhD

Clinical Director, Psychologist

Laura Carlson, MD

Psychiatrist

Simcha Cohen, PMHNP-BC

Psychiatric Nurse Practitioner

Brandon DeJong, PhD

Clinical supervisor, Psychologist

Peter DeVries, MD

Psychiatrist

Ghea Mae Degillo, DNP, RN

Advanced Practice Nurse Practitioner

Amanda Delaney, MPH, MD

Psychiatrist

Anthony Dobner, MD

Psychiatrist

Lauren Ehret, PhD, LP

Clinical Supervisor, Psychologist

Stephanie Eken, MD, FAAP

Assistant Chief Medical Officer and Medical Director, Outpatient Services

Timothy Ellingstad, PhD

Clinical Supervisor, Psychologist

Margaret Enright, CRNP

Psychiatric Nurse Practitioner

Bradley L. Erickson, MD

Medical Director, Child and Adolescent Inpatient Care and OCD, Anxiety, and Depression Center Adolescent Residential Care, Psychiatrist

Narissa R. Etwaroo, MD

Psychiatrist

Gregory Evangelatos, MD

Psychiatrist

William Findlay, MD

Psychiatrist

Kimberly Frank, MD