Meet Our Caregivers
The primary focus of Adult & Child Health’s Leadership Team is to support our direct care staff and our clients & patients in the long-term attainment of healthy life goals. We believe strong leaders are transformational in nature and empower staff to grow and innovate.
HOPE
COMPASSION
CREATIVITY
A&C’s mission is driven by the incredible compassion of our team. The needs of our growing client and patient base push us to innovate & collaborate in new ways to continuously evolve and strengthen our services.
Board of Directors
Tom Gaunt
Foster Care Parent/Advocate,
Geometric Solutions, LLC
Joe Villanueva
Attorney,
Johnson County Prosecutor's Office
Joel Githiri
VP of Finance, FitzMark, LLC
Amber Clarke
Change Management Consultant,
Simplus
Sue Collins
Retired Registered Nurse
Colleen Gore
Chief Program Officer,
Wheeler Mission
Jim Engmark
Community Liaison,
Johnson County Sheriff's Office
Bonnie Pribush
Professor Emerita,
Franklin College
Leslie Kelly
Director of Programs, Horizon House
Kevin Flood
Retired IT Professional
Executive Leadership Team
Allen Brown
MSSW
President and CEO
Andrea Cruser
Acting Chief Financial Officer
Christine E. Negendank
M.D., M.B.A., C.C.H.P.
Chief Medical Officer
Jessica Stembel
PsyD, HSPP, IMH-E
Chief Clinical Officer
Denise Amato
MBA, SHRM-SCP
Executive Vice President of Operations
Kerri Lewis
Chief Information Officer
Lauran Canady
LCSW
Vice President of Integrated Health
Jennifer Disbro
LCSW
Vice President of Behavioral Health Services
Medical Providers
Christine Negendank, MD, MBA, CCHP
Dr. Negendank is the Chief Medical Officer at Adult & Child Health and provides adult psychiatry services.
Dr. Negendank provides medication management and leads the adult psychiatry team, collaborating with nurse practitioners, and helping develop agency policies and procedures. Dr. Negendank is board-certified in adult psychiatry, forensic psychiatry, and addiction medicine.
She began her medical training at Wayne State University and completed a psychiatric residency at the University of Michigan. Dr. Negendank served as chief resident and devoted many elective hours to the homeless outreach clinic. In her forensic psychiatry fellowship, she developed expertise in violence and suicide risk assessments, provided expert witness testimony, and performed evaluations for those defendants requesting competency and not guilty by reason of insanity.
Since, she has worked in community mental health, often serving and advocating for jailed and homeless individuals. When not working she enjoys spending time with her family, competing in triathlons, & keeping up with her children’s passions of art, music, and archery.
Arman Siddiqui, MD
Dr. Siddiqui is an Associate Medical Director and a Child and Adolescent Psychiatrist.
Dr. Siddiqui is board certified in Psychiatry and in Child & Adolescent Psychiatry, having completed his Residency and Fellowship at New York Medical College.
He has been with Adult & Child since 2015 and has been awarded multiple awards including the Clinical Excellence Award and Outstanding Intern by New York Medical College.
Joe Banks, DO
Dr. Banks is an Associate Medical Director of Primary Care.
Dr. Banks is a primary care physician with his Doctorate of Osteopathic Medicine from Nova Southeastern University College of Medicine. He completed his residency in Family Medicine at Mount Sinai School of Medicine in Jamaica Queens, New York City.
Dr. Banks brings significant family medicine and primary care experience to A&C, working to treat Hoosiers across the state since 2008. Dr. Banks joined Adult & Child Health in at the end of 2021 and is currently accepting new patients.
Charles W. Coats, MD
Dr. Coats is board-certified in General Psychiatry and Child & Adolescent Psychiatry.
Dr. Coats graduated from Indiana University Bloomington with a BA in Biological Sciences before attending IU School of Medicine Indianapolis. He then completed a Residency in Psychiatry and a fellowship in Child and Adolescent Psychiatry.
Dr. Coats served as Chief of Staff of Valle Vista Hospital in Greenwood, IN for 11 years and directed all the Child and Adolescent Programs both Acute and Residential. He came to the Adult and Child Center in 1998 and continued to serve in Child and Adolescent Psychiatry. Served as Medical Director of Adult and Child Health Services until recently, now serving as Associate Chief Medical Officer to Dr. Negendank. His duties include direct patient care of Child and Adolescent patients at the 8320 Madison Ave office and providing collaboration to the Child and Adolescent APN’s. He has also served Intecare as their Medical Director.
He enjoys spending time with his wife and twin daughters.
Joanna Chambers, MD
Dr. Joanna Chambers is a board-certified Psychiatrist.
Dr. Chambers graduated from Medical College of Georgia with her Doctorate of Medicine in 1996 and completed her residency in psychiatry at Yale University School of Medicine. In addition to bringing a wealth of experience, she currently serves as an associate professor at Indiana University School of Medicine where she teaches Clinical Psychiatry.
Dr. Chambers is certified in Addiction Medicine and has a special interest in treating pregnant and postpartum women. She is President of the American Academy of Psychoanalysis and Dynamic Psychiatry Organization as well as a sitting member of many medical association boards. Recently, she won the Residents’ Award for Teaching Excellence in 2020 from Indiana University and has received “Best Doctors Award” in 2010, 2011, and 2014. Dr. Chambers is incredibly active in the medical, academic, and research realms of medicine.
R. Andrew Chambers, MD
Dr. Chambers is a Board Certified Addiction Psychiatrist.
Dr. Chambers received his MD from Duke University in 1996. Since then, he has been active in clinical research including behavioral neuroscience. He has special clinical interest in caring for adolescents and adults with dual diagnoses (mental health and substance disorders), and he serves as the IUSM Director of Addiction Psychiatry and Fellowship Training.
Samantha Wagner, MD
Samantha Wagner is board-certified in General Psychiatry and Child & Adolescent Psychiatry.
Samantha Wagner graduated from Hanover College with a BA in biology before attending IU School of Medicine. She then remained in Indianapolis at the IU School of Medicine and completed a residency in general psychiatry and then fellowship in child and adolescent psychiatry. She grew up in an Indianapolis suburb and has enjoyed living in downtown Indianapolis since graduating from college. She has clinical interests in community mental health, specifically the impacts of social determinants of health and trauma on the development and mental health of children and adolescents. She is also interested in treating substance abuse disorders in young people and working with early on-set psychosis.
In her free time she can be found roaming around downtown with her four-legged best (dog) friend Cricket. She also enjoys painting, refinishing furniture and generally pretending to be crafty. Also a lover of live music and spending time with family and friends.
Shavon Donald, APRN
Shavon Donald is a board-certified Family Nurse Practitioner.
Shavon Donald began her career in health care by working in the stepdown ICU at IU Methodist Hospital and transitioned to inpatient medical psychiatry while at Methodist. She gained experience in retail health, urgent care, and family practice before joining the A&C team in 2016. She has served Adult & Child in both adult psychiatry services and addiction medicine.
In addition to her clinical experience, Shavon’s academic background includes a bachelor’s degree in Nursing and a Master of Science in Nursing from the University of Indianapolis, where she graduated magna cum laude.
In her free time, Shavon enjoys spending time and traveling with her husband and two daughters, reading, and exercising. She is a strong advocate for empowering nurses, and believes that nurses should play a pivotal role in shaping modern health care.
Tina Baxter, APRN, GNP-BC
Tina Baxter is a board-certified gerontological nurse practitioner and adult prescriber.
Tina Baxter holds a master’s degree in nursing education and a post-master’s certificate as gerontological nurse practitioner from the University of Indianapolis. She previously worked as a nurse practitioner in many behavioral health settings and is an educator, previously teaching as adjunct faculty at the University of Indianapolis, Anderson University, and Ivy Tech Community College. She is a faculty member and educator for PESI Healthcare where she serves as a national speaker, building upon her past experience as a national speaker for SAMSHA.
Tina has served in many organizations & board appointments including the Indiana State Nurses Association, American Red Cross, Madison County Minority Health Coalition, Black Nurses Association of Anderson, Indiana INC, Anderson/Madison County Black Chamber of Commerce, Concerned Ministers of Anderson, American Association of University Women, and many others.
She is married to her husband of more than two decades. She serves as an evangelist and a commissioned parish nurse for her local congregation. Baxter enjoys spending time with her family and friends, watching movies and reading.
Hope Lowhorn, APRN
Hope Lowhorn is a board-certified Family Nurse Practitioner.
Hope Lowhorn collaborates with patients of all ages to optimize their overall health and tend to their medical needs.
She started her career as a Registered Nurse at Johnson Memorial Hospital, where she worked on the medical surgical floor, Critical Care and Cardiac Testing for 18 years. She also worked as a PRN at St. Francis as a Sexual Assault Examiner, and at Methodist Hospital in their Behavioral Care Inpatient Unit. She most recently worked as a Nurse Practitioner at IU Bloomington in their urgent care for all ages.
Hope enjoys spending time with her family, shopping, and traveling.
Jennifer White, MSN, FNP-C
Jennifer White is a Family Medicine Advanced Practice Nurse (APN) at the Garfield Park clinic.
Jennifer White has a wide range of clinical experience and a passion to serve.
She has treated patients as an APN with both acute and chronic health conditions and has worked in the Methodist Hospital Level 1 Trauma Center in both the main emergency department and the observation unit.
Prior to becoming an APN, she worked as a registered nurse (RN) in oncology/hematology and has worked as a sexual assault nurse examiner who counseled and supported survivors of assault trauma.
Yolanda Bray, APRN
Yolanda Bray is a board-certified Psychiatric Nurse Practitioner.
Yolanda Bray began her health care career in emergency & trauma medicine. She worked both inpatient & outpatient settings before transitioning to community mental health. She joined the Adult & Child Medical Team in 2014. Her role includes child, adolescent, and adult psychiatry, as well as addiction services.
In addition to her clinical experience, Yolanda’s academic background includes a bachelor’s degree in Nursing and a Master of Science in Nursing from Indiana University. She is a member of APNA and ANCC.
In her free time, Yolanda enjoys spending time with her husband and two children. She is a sports fanatic and loves traveling with her family.
Nicolette Baer, MSN PMHNP-BC
Nicolette Baer is a Psychiatric-Mental Health Nurse Practitioner.
Nicolette Baer, MSN PMHNP-BC, joined A&C in 2018. She specializes in child and adolescent psychiatry.
Nicolette received her ASN from Marian College and her BSN from U of I. She then graduated magna cum laude from Indiana Wesleyan with her MSN.
Nicolette previously spent 20 years in ER/trauma at IU Health Methodist, where she specialized in forensic nursing with sexual and physical abuse, IPV, testifying, and bereavement flight nursing. She also traveled with Indy Racing League and Indianapolis Motor Speedway.
Raised in Indianapolis, Nicolette enjoys spending time with family and friends, entertaining, music, sports, traveling, new adventures, and living life to the fullest.
Christy Dixon, APRN
Christy Dixon is a board certified Nurse Practitioner.
Christy Dixon began her career in health care as a lab assistant in the early 80’s and became a Licensed Practical Nurse in 1985. She obtained her Registered Nurse degree in 1989, and graduated from IUPUI in 2012 as a Nurse Practitioner. All of her clinical experience has been in mental health and she has worked with all populations with Psychiatric-Mental Health needs, in settings including outpatient, inpatient acute care for patients with psychiatric substance abuse needs, inpatient residential care and state hospitals for patients with long-term psychiatric needs.
Christy’s specific interests in psychiatry are patients with mood and thought disorders, as well as caring for patients who have survived trauma. She enjoys precepting nurse practitioner students and is interested in working to streamline systems in healthcare delivery models.
Jessica Cielo, PMHNP-BC
Jessica Cielo is a Psychiatric-Mental Health Nurse Practitioner.
Jessica Cielo was raised in Johnson County then earned her undergraduate degree from Indiana State University and her graduate degree from Indiana University.
Jessica started working in mental health and psychiatry in 2011. She has experience in a range of environments, including inpatient, outpatient, and addictions, as well as across the patient lifespan from children to geriatric individuals.
Caring for the mental health population is one of Jessica’s main interests. She also loves studying psychopharmacology and the brain. When she’s not working, she enjoys spending time with her family and pets. She also loves to travel and loves the Indianapolis Colts.
Let's make a difference together!
Learn more about joining the A&C team.
The A&C mission is driven by the incredible compassion of our team. The needs of our growing client and patient base push us to innovate and collaborate in new ways to continuously evolve and strengthen our services.
Visit our careers page to view all current openings.
Directors
Laura Barrett
LCSW, LCAC
Director of Behavioral Health Services
Aja Bridgewater
LCSW, CYC-P
Director of School Based Services
Kelly Chambers
Director of Support Services
Roshanda Cherimond
Director of Nursing
Carol McKinney
Director of Information Technology
Kevin Rogers
Director of Facilities
Cassie Squillace
LMHC
Director of Culture and Talent
James Stembel
Director of Clinical Informatics
Megan Trible
LCSW
Director of Child Welfare Services
Jeremy Tuterow
Director of Practice Operations
Anna Washburn
MBA, RHIA
Director of Compliance & Performance Operations
Assistant Directors
Tyler Alexander
LMHC
Assistant Director of Clinic Based Services
Kelly Esposito
LCSW
Assistant Director of School Based Services
Aneatria Johnson
LPN
Assistant Director of Nursing
Chrissy Marcum
MHA
Assistant Director of Practice Operations
Michelle Reed
SHRM-CP
Assistant Director of People Operations
Kim Rompala
LMHC
EMR Systems Analyst-Assistant Director
Alannah Rosenbalm
LCSW
Assistant Director of Behavioral Health Services
Alix Rowles
LMHC
Assistant Director of Behavioral Health Services
Liz Stirn
LCSW
Assistant Director of School Based Services
Amanda Vipperman
LSW
Assistant Director of Behavioral Health Services
Aby Wischmeier
LCSW
Assistant Director of School Based Services