Sarah Koscica, MD
Interim Chief Medical Officer
Family Medicine
Site Medical Director
HHS Garden
Dr. Koscica joined the Heartland team in 2014 and brings more than 15 years of experience in family medicine. She values building long-term relationships with her patients and especially enjoys caring for multiple generations within the same family. Outside of work, Dr. Koscica likes staying…
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James Barnett, MD
Family Medicine
HHS Wisconsin
Dr. Barnett joined the Heartland team in 2007. His roots and early medical practice in Africa deeply influenced his appreciation for working with diverse cultures and communities. He strives to bring a "love your neighbor as yourself" philosophy into his medical practice, emphasizing compassionate,…
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Roxie Oliver-Payne, MD
Family Medicine
HHS Wisconsin
Dr. Oliver-Payne joined the Heartland team in 2015. A proud University of Illinois graduate, she completed her medical education across multiple University of Illinois campuses. She is passionate about all aspects of women’s health and family planning and is committed to providing comprehensive,…
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Brogan Bahler, MD
Family Medicine & Obstetrics
Director of Obstetrics
HHS Olt
Dr. Bahler joined the Heartland team in 2022 and has six years of experience practicing medicine. His patient-centered approach emphasizes education, shared decision-making, and advocacy, with a focus on helping patients understand and actively participate in their care. Dr. Bahler has…
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Archana Ramesh, MD
Family Medicine & Obstetrics
HHS Olt
Dr. Ramesh joined the Heartland team in 2022. She is committed to building long-term relationships with her patients and looks forward to growing her practice while actively connecting with the community she serves. EDUCATION Medical School Chicago Medical School Residency University of…
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Brian Bamberger, MD, MPH, FAAP, FACP
After Hours Care Director
Internal Medicine & Pediatric Medicine
HHS Knoxville
Dr. Bamberger has been practicing medicine for over 11 years. He joined the Heartland Health Services team in 2014 as a resident and has continued to serve the community in a variety of roles, including as After Hours Care Director. His clinicial approach emphasizes accessibility, continuity of…
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John Mihelcic, MD
Director of Behavioral Health and Medication Assisted Therapy
Family Medicine & Obstetrics
HHS Wisconsin
Dr. John Mihelcic practices medicine by treating the patient as a whole person, including their emotional, mental, and spiritual health, not just their physical wellbeing. He empowers his patients to take charge of their health and tailor the care plan to the individual. While caring for pregnant women…
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Todd Karas, DPM
Podiatry
HHS Knoxville
Julie Ludlum, CNM, APN
Certified Nurse Midwife
HHS Olt
Julie joined the Heartland team in 2018. Her wide variety of experience contributes to her vast knowledge of patient care. With a passion for Obstetrics, Julie became a Registered Nurse and worked for Pekin Hospitals Baby Place. Board Certified as an AMCB Certified Midwife. Julie is an active member…
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Heather Boore, APN-FPA
Pediatrics, Family Nurse Practitioner
HHS Sheridan & Wisconsin
Heather joined Heartland Health Services in 2025 and is a dedicated healthcare professional with a wealth of experience in nursing and patient care. She has built a diverse career across various nursing specialties, including obstetrics, pediatrics, diabetes care, and leadership. During her leadership…
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Courtney Wyatt, WHNP
Women's Health Nurse Practitioner
HHS Knoxville
Courtney Wyatt joined Heartland Health Services in 2023 and is a Women’s Health Nurse Practitioner who has been working in Women’s Health for the last 12 years. She earned her Bachelor’s degree at Illinois State University in 2009 and shortly after began working on a Labor and Delivery…
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Amanda Boitnott, WHNP-BC
Women's Health Nurse Practitioner
HHS Knoxville
Amanda joined Heartland in 2025 but has been caring for women since 1997 when she graduated from the University of Kentucky Nursing school. She started as a Labor and Delivery nurse at OSF in Bloomington for 10 years. She then pursued her Masters in Nursing and in 2009 obtained her WHNP…
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Dina Witter, WHNP
Women's Health Nurse Practitioner
HHS Wisconsin
Dina joined Heartland in May 2025 bringing with her more than 20 years of nursing experience. She worked as an Advanced Practice Nurse for the eight years exclusively for non-profits prior to joining Heartland Health Services. This past experience and her passion for meeting underserved populations…
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Kristina McCue, PMHNP-BC
Psychiatric Mental Health Nurse Practitioner
HHS Wisconsin
Kristina has been an employee of Heartland Health Services since 2009. She has been in the medical field for 39 years, starting as a pharmacy technician in 1985 later becoming a certified nurse assistant and shortly thereafter entering nursing school, graduating in 1994 from Methodist School of Nursing…
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Yvonne McCall, PA-C
Physician Assistant Certified
HHS Garden
Yvonne joined the Heartland team in 2009 and serves on the provider retention committee. With over 15 years of experience in community health, she is dedicated to promoting overall wellness among her patients. In her personal time, she enjoys running, spending time with family, and watching her two…
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Cindy Kohtz, APRN-FPA, PMHNP-BC
Family Nurse Practitioner, Psychiatric Mental Health Nurse Practitioner
HHS Wisconsin
In Cindy's long career in healthcare, she has not only improved the lives of countless patients during her time as a bedside nurse, but she also sowed the seeds for future generations of nurses, many of whom now also practice at Heartland, as a nursing educator. Now sharing her gifts at Heartland Health…
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Ashley Droege, PA-C
Physician Assistant Certified
HHS Garden
Ashley joined Heartland Health Services as a PA-C in 2018 and then as a PRN in 2019. In 2023, she came back to HHSIL full time in the role of PA-C. Ashley chose Heartland Health Services because she has 2 children who are very busy with sports and being home in the evenings and on the weekends…
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Braden Williams, PA-C
Physician Assistant Certified
HHS Garden
Braden joined Heartland Health Services in 2023 following the completion of his Master's of Physician Assistant degree at St. John's University in Queens, New York. He specializes in internal medicine and pediatrics for youth ages 14+. Braden provides high quality care for all and is dedicated…
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Angela Miller, FNP-C
Family Nurse Practitioner
HHS Carver
Angela joined Heartland Health Services in 2017 in primary care/walk-in clinic. She accepted the role of our Telehealth provider in 2023. Angela enjoys caring for those in our community with the greatest needs. In her spare time, she enjoys shopping and spending time with family. Education Saint…
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Casey Kimler, DNP, APRN, FNP-BC
Family Nurse Practitioner
HHS Knoxville
Casey joined Heartland in 2025 with more than 22 years of experience in healthcare and a deep commitment to patient-centered care. She believes in meeting people where they are and values being both a resource and an advocate for her patients. She looks forward to serving individuals and families facing…
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Susannah Dintzis, APN
Family Nurse Practitioner
HHS Wisconsin
Susannah Dintzis, APN. BC-FNP, joined Heartland Health Services in 2019. She has worked in a variety of settings, including school-based health care, the Chicago Health Department, and urgent care. She enjoys serving culturally diverse patient populations. She spent time…
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Ciara White, APN
Family Nurse Practitioner
HHS Wisconsin
Ciara joined the team in 2022 and serves as a Family Nurse Practitioner for the walk-in clinic at East Bluff. She worked as a pediatric nurse at the Children’s Hospital of Illinois for 7 years before becoming an APN. In her personal time, she enjoys spending time with her family and…
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Jami Wallace, MSN, APN, FNP-BC
Nurse Practitioner
HHS John H. Gwynn
Alison Pendergast, LCPC
Licensed Clinical Professional Counselor
HHS Garden
Alison joined the Heartland team in 2022 and has worked in the industry for 10 years. In her free time, she enjoys hiking, cooking, reading and strength training. Education Bachelor's degree from Loyola University New Orleans Master's degree in Clinical Mental Health Counseling…
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Mary Jennifer Meister, LCSW
Behavioral Health Program Manager
Licensed Clinical Social Worker
HHS Wisconsin
Mary Jennifer received her Masters of Social Work and Masters of Divinity from Loyola University in 2006. She brings with her a wide range of experience including chaplaincy work, hospice, social work, foster care therapy, pastoral care, youth ministry, and community mental health. Mary Jennifer specializes…
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Mallory Hippler, LCPC
Licensed Clinical Professional Counselor
HHS Olt & Vandever
Mallory joined Heartland Heath Services in May 2025 as an Outpatient Behavioral Health Therapist. She is currently piloting the integrated Behavioral Health program at the Olt location in Pekin. The integrated model allows patients to see me the same day as their provider visit, which provides greater…
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Angie Wilson, PMHNP-BC
Psychiatric Mental Health Nurse Practitioner
HHS Garden & Vandever
Angie joined Heartland in 2025. She started her career with a bachelor’s degree in psychology, then graduated in 2008 from Lindenwood University in St. Charles, MO with a master’s degree in professional counseling. In 2015, she returned to Bradley University and completed a second bachelor’s…
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Michaela Reneau, LCSW
Licensed Clinical Social Worker
HHS Wisconsin
Alyssa Adduci, LSW
Licensed Social Worker
HHS Wisconsin
David Gregory, MD
Family Medicine, Tele-Health
Shelly Shallat, MD
Pediatrics
HHS Knoxville
Martha Willi, MD
Ophthalmology
HHS Garden
Peter Alahi, MD
Psychiatry
HHS Knoxville
Saurabh Kumar Bansal, MD
Internal Medicine
HHS Knoxville
Joel Borden, MD
Internal Medicine
HHS Knoxville
Rishi Bothara, MD
Internal Medicine
Chief Resident
HHS Knoxville
Kristen Chambers-Damm, MD
Internal Medicine
Department Director
HHS Knoxville
Tulika Chatterjee, MD
Internal Medicine
HHS Knoxville
Madison Chu, MD
Tele-Psychiatry
HHS Knoxville
Ninah Clegg-Johnson, DO
Internal Medicine, Pediatrics
HHS Knoxville
Katie Crawley, DO
OB/GYN
HHS Knoxville
Joshua Croland, MD
OB/GYN
HHS Knoxville
Kody Dormire, DO
Internal Medicine, Pediatrics
Knoxville-After Hours
Christy Enright, APN
Certified Nurse Midwife
Olt
Andrea Escobar, MD
Internal Medicine, Pediatrics
HHS Knoxville
Bethany Ferguson, NP-C
Family Nurse Practitioner
After Hours
Melvin Fleming, MD
OB/GYN
HHS Knoxville
Jeffrey Galvan, MD
OB/GYN
HHS Knoxville
Deepshikha Garg, MD
Internal Medicine
HHS Knoxville
Jackson Graves, MD
Internal Medicine, Pediatrics
HHS Knoxville
Jessica Hanks, MD
Internal Medicine, Pediatrics
HHS Knoxville
Towanda Harris-Fuller, MD
Family Medicine
HHS Knoxville & After Hours
Gerri Hellhake-Hall, APN, FPA
Family Nurse Practitioner
Carver and After Hours
Javier Hernandez, DO
Internal Medicine, Pediatrics
HHS Knoxville & After Hours
Emily Horvath, MD
Internal Medicine
HHS Knoxville
Kaleb Jacobs, DO
OB/GYN
Department Director
HHS Knoxville
Matthew Jager, DO
Internal Medicine, Pediatrics
HHS Knoxville
Leo Jennetten, MD
Internal Medicine, Pediatrics
Chief Resident
HHS Knoxville
Larry Lindahl, MD
Internal Medicine, Geriatric Medicine
HHS Knoxville
Teresa Lynch, MD
Internal Medicine, Pediatrics
HHS Knoxville
Chad Marshall, DO
Pediatrics
HHS Knoxville & After Hours
Rafael Marquez, MD
OB/GYN
HHS Knoxville
Brendan Minardi, DO
Internal Medicine, Pediatrics
HHS Knoxville
Matthew Mischler, MD
Internal Medicine, Pediatrics
HHS Knoxville
Zohra Moeenuddin, MD
Pediatrics
Department Director
HHS Knoxville
Dana Morrison, MD
OB-GYN
HHS Knoxville
Erin Mowers, MD
Urogynecology
HHS Knoxville
Amir Mubarak Zeid, MD
Pediatrics
Chief Resident
HHS Knoxville
Christopher Nau, MD
Internal Medicine, Pediatrics
HHS Knoxville
Ann Parkin-Cohen, MD
Pediatrics
HHS Knoxville
Bindu Patel, MD
OB/GYN
HHS Knoxville
Nathan Petersen, MD
OB/GYN
HHS Knoxville
Peter Phan, MD
Internal Medicine
HHS Knoxville
Alexis Priddy, MD
Internal Medicine, Pediatrics
HHS Knoxville & After Hours
Christina Pica, DO
Pediatrics
HHS Knoxville
Anne Risk, MD
Internal Medicine, Pediatrics
HHS Knoxville
Kaylee Rosenbaum, MD
Internal Medicine
HHS Knoxville
Tina Saddler, NP-C
Family Nurse Practitioner
After Hours
Rachel Samuel, MD
Pediatrics
Knoxville-After Hours
Sidney Ann Stewart, MD
Internal Medicine, Pediatrics
HHS Knoxville
Gail Streater, MD
Pediatrics
HHS Knoxville
Stephen Thompson, MD
OB/GYN
HHS Knoxville
Neelam Verma, MD
OB/GYN
HHS Knoxville
Samantha Ward, DO
Pediatrics
HHS Knoxville
Michelle Whitelow, NP-C
Family Nurse Practitioner
After Hours
Manajyoti Yadav, MD
Internal Medicine
HHS Knoxville
Donald Yang, MD
Internal Medicine
HHS Knoxville
Sayeeda Yasmin, MD
Internal Medicine
HHS Knoxville
