Personal de Shalom

Equipo directivo

Leonardo Ortega, M.D., M.P.H.

Presidente y Director General

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Margarita Wiersema, M.D.

Director Médico

Dr. Wiersema is a board-certified family practice physician. She has more than 20 years of clinic expertise since graduating Medical School in the former USSR. She previously treated patients at Community Health Medical Center; and also served as a physician with the United States Army, receiving the Meritorious Service medal for her care of troops. Dr. Wiersema treats patients of all ages and has special interest in diabetes, heart disease prevention, women’s health, and medical procedures. She fluently speaks English and Russian.

Mimi Beresky

Directora de Operaciones

Mimi Beresky joined Shalom in 2010 and has held a variety of positions in front desk, scheduling, insurance navigation and Community Outreach. She was appointed to the Chief Operations Officer at Shalom in 2015 and was instrumental in the opening of the 56th St Clinic in 2016. She is fluent in English and Spanish and has worked with a diverse patient and employee population.

Andy Nino

Director Financiero

Michael “Andy” Niño joined Shalom in 2017 after serving eight years on the Board of Directors. He has extensive experience in the banking industry, most recently as Assistant Vice President Branch Manager with BMO Harris Bank. Andy is active in the community, serving on the boards of Fuller Center of Housing and Indiana Latino Expo. He is fluent in English and Spanish.

Staci Walters, MPH

Directora de Calidad y Cumplimiento

Staci Walters holds a Master’s Degree in Public Health. She joined Shalom in 2016 as QAQI Associate and advanced to QAQI Director. Her academic research in medical underserved areas and health professional recruitment and retention developed her passion for serving vulnerable populations.

Donna Vaughan, DBH, LMHC

Director de Salud Mental

La Dra. Vaughan se graduó en el Ashland Theological Seminary con un máster en asesoramiento pastoral clínico y obtuvo su doctorado en salud mental en la Arizona State University. Es consejera de salud mental con licencia en Indiana y Ohio, y ha trabajado en la salud mental de la comunidad, en la práctica privada y en centros de salud calificados por el gobierno federal.

Morella Domínguez

Directora de Mercadeo y Desarrollo

Before joining Shalom in 2014, Morella served as Director of Multicultural Affairs at the Indiana Minority Health Coalition. She also served as Spanish/English Medical Interpreter at Wishard Health Services and Director of Production for the television program”Nuestra Musica” at Butler University. She has a BS in Telecommunications Arts from Butler University.

Teresa Driskell, MSN, FNP-BC

Directora de enfermería

Teresa holds a Master’s Degree in Nursing as a Family Nurse Practitioner from Medical University of South Carolina after earning her Bachelor of Science in Nursing from Indiana University. She has more than 25 years of nursing experience with more than two decades of practice as a nurse practitioner. As the Chief Nursing Officer, Teresa oversees the school-based clinic program and staff of nurses, nurse practitioners, and physician assistants.

Clínicas de atención primaria


Dr. Margarita Wiersema, M.D.

Family Medicine Physician

Dr. Wiersema is a board-certified family practice physician. She has more than 30 years of clinical expertise since graduating from medical school in the former USSR. She previously treated patients at Community Health Medical Center; she served as a physician with the United States Army, receiving the Meritorious Service Medal for her troops’ care. Dr. Wiersema treats patients of all ages and specializes in diabetes, heart disease prevention, women’s health, and medical procedures. She fluently speaks English and Russian.


Dr. Lyle Cortez, D.O.

Family Medicine Physician

Dr. Lyle Cortez was born in Chicago, IL but grew up in Terre Haute, Indiana. He earned his Bachelor of Science Degree from Indiana University in Bloomington, Indiana. He completed medical school at Midwestern University’s Chicago College of Osteopathic Medicine in Downers Grove, IL. He then completed his Family Medicine Residency at Indiana University’s School of Medicine in Indianapolis as part of the Class of 2012. Dr. Cortez is Board Certified in Family Medicine by the American Board of Family Medicine.

Being a D.O., he has been trained in Osteopathic Manipulation Treatment. It is similar to Chiropractic Adjustments. Dr. Cortez takes pride in listening to his patient’s concerns and needs. With his training in rural and urban areas, he is confident in helping people of different cultures. He strives to give the best care possible, and if he needs assistance, he is not reluctant to place a referral to a specialist. He is a true believer in Preventative Medicine by doing Annual Visits. He is also passionate about treating Diabetes, Hypertension, and High Cholesterol.

He comes from a strong family background of medical providers, and being a doctor was something he has always strived to be.

Dr. Hemalatha Hemachandra, M.D.

Pediatra

Dr. Hemachandra has been a Pediatrician for over 25 years, working previously in Neonatal Intensive Care and as an Oncology Specialist.  She has worked in large pediatric practices and with various ethnic populations.  In addition to working in Indianapolis, she has worked in Greenfield (IN), Muncie (IN), Michigan, Washington DC, and Maryland.  She is passionate about being an advocate for children and educating their parents.  Dr. Hemachandra believes that reading from an early age can change the direction of a child’s thinking and future achievements and that children should always come firsts.  She enjoys spending time with her three children and two grandchildren, gardening, and reading poetry.

Ashley Townsend de Lara, PharmD

Farmacéutica

Coming soon.


Tyler Trabel, PA-C

Asistente médico

Tyler is a Physician Assistant from Fort Wayne, IN, who started with Shalom in 2020. He received his Bachelor of Science in Biology/Pre-Physician Assistant from Ball State University and his Master of Science in Physician Assistant Studies from the University of Saint Francis (Fort Wayne). Tyler has a background in emergency medicine but is looking forward to establishing himself in primary care and developing relationships with his patients to help combat acute and chronic conditions/diseases. He prides himself on pushing his patients to be the best that they can be.

Tyler enjoys watching and playing sports in his free time, spending time with family and friends, and traveling with his soon-to-be wife.


Lyndsey Furry, FNP-C

Enfermera de familia

Lyndsey joined Shalom in 2015 as a family nurse practitioner, treating acute and chronic conditions in children and adults. Surviving cancer in her teenage years inspired her passion for serving others and focusing on chronic disease prevention and management through lifestyle modification and access to affordable screenings, medication, and care. Valuing a holistic approach, she seeks to care for her patients as whole, individual people.

Outside of Shalom, Lyndsey enjoys sewing and crafting, playing the ukulele, and spending time with her husband and her dog, Neptune.

Lori Fishburn, MSN, APRN, FNP-C

Enfermera de familia

Lori received a Bachelor of Science in Nursing Degree from Indiana University and a Master of Science in Nursing from Indiana Wesleyan University in 2016. She is a University of Saint Francis student working on a Doctorate in Nursing Practice. Lori has over 20 years of experience in health care, working in many nursing specialties, including ER, ICU, and Occupational Health. Lori also specializes in working with people seeking substance use disorder treatment through Medication Assisted Treatment. 

She is passionate about diversity and acceptance in health care and improving access to care for people through inclusivity. Lori enjoys spending time with her husband, daughter, and two dogs. She also enjoys reading, sports, and music.

Dr. Arthur Galstian

Dr. Arthur Galstian, M.D.

GINECOLOGÍA Y OBSTETRICIA

Dr. Galstian is a board-certified physician in Obstetrics & Gynecology. He has practiced for over 38 years in three countries. Over the last 26 years, he has worked in Indianapolis, first as a Methodist Hospital employee and then for 24 years as a solo practitioner. Dr. Galstian was awarded a Ph.D. for his studies in the field of prematurity and fetal growth restriction. He co-authors the “Immunology of Preeclampsia” chapter in the textbook “Immunological Obstetrics.” He has consistently been named as one of Indiana’s Top Doctors since 2011. He has also been a clinical preceptor for OB-GYN and family practice residents. Dr. Galstian welcomes all patients and performs all surgical procedures pertinent to general Obstetrics and Gynecology. He is fluent in English, Russian, and Armenian.


Donna Vaughan, DBH, LMHC

Director de Salud Mental

Dr. Vaughan has implemented and directed integrated behavioral health programs in healthcare settings since 2008.  She graduated from Arizona State University with a Doctorate in Behavioral Health and from Ashland Theological Seminary with a Masters in Clinical Pastoral Counseling.

She has been a Licensed Mental Health Counselor in Indiana and Ohio, working in community mental health, private practice, and Federally Qualified Health Centers.


Elaine Lerner, MSN, PMHNP-BC

Enfermera de Salud Mental Psiquiátrica

Elaine Lerner has her Master’s Degree in Nursing as a Psychiatric Mental Health Nurse Practitioner from Indiana Wesleyan University.  She has been a nurse for over fifteen years, psychiatry for six of those.  She sees patients of all ages and specializes in bipolar disorder, depression, and substance use disorder. 

Clínicas escolares

Megan Sloan, FNP

Enfermera de familia

Erin Boschert

Flotación y formación NP

Jessie Combs

Jefe de equipo de la clínica escolar

Crista O'Connor, FNP

Enfermera de familia

Stephanie Lewman, FNP

Enfermera de familia

Anna Hession, PNP

Enfermero/a pediátrico/a

Brandi Scroggins, FNP

Enfermera de familia

Haley Vannoy, PNP

Enfermero/a pediátrico/a

Abigail Givan, PA-C

Asistente médico

Mary Lou Palmer, FNP

Enfermera de familia

Emily Yeary, PNP

Enfermero/a pediátrico/a

Savannah Morris, PNP

Enfermero/a pediátrico/a

Alyssa Clark, PNP

Enfermero/a pediátrico/a

Katie Morris, PNP

Enfermero/a pediátrico/a

Heidi Ritter, RN

Enfermera titulada

Margaret Millican, LPN

Enfermero/a práctico/a licenciado/a

Brett Pearlman, PNP

Enfermero/a pediátrico/a

Nicole Cook, FNP

Enfermera de familia

Marie Howard, LPN

Enfermero/a práctico/a licenciado/a

Rachel Gilboy, PNP

Enfermero/a pediátrico/a

Kylie Fletcher, PNP

Enfermero/a pediátrico/a

Krystal Wullschleger, FNP

Enfermera de familia

Jenna Westwick, PNP

Enfermero/a pediátrico/a

Abby Law, FNP

Enfermera de familia

Alli McCarley, FNP

Enfermera de familia

Alli McKinley, PNP

Enfermero/a pediátrico/a
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