In May 2025, physicians logged on and voted for their peers, who are active physicians in Marion, Hamilton, Madison, Boone, Johnson, Hendricks, Hancock, Morgan, and Shelby counties, in the 2025 Indianapolis Monthly Top Docs. This year 138 employed Ascension St. Vincent physicians, listed below, were recognized as leaders in providing clinical excellence, in addition to several affiliated physicians,
We are honored to have such dedicated physicians who are called to bring health, healing and hope to all. Read below what our service line leaders have to say about our award-winning providers.
Behavioral Health
At Ascension St. Vincent, when you have something on your mind, we’re here to listen.
Psychiatry
- Charles A. Class, M.D.
Cardiovascular
Choose Ascension St. Vincent to be your first choice – from heart and vascular screenings to surgery.
Advanced Heart Failure & Transplant Cardiology
- Kathleen L. Morris, D.O.
- Ashwin K. Ravichandran, M.D.
Cardiac Electrophysiology
- Jasen L. Gilge, M.D.
- Sandeep A. Joshi, M.D.
- Eric N. Prystowsky, M.D.
Cardiac Surgery
- David A. Heimansohn, M.D.
- Scott A. Hittinger, M.D.
- Peter A. Walts, M.D.
- Giorgio Zanotti, M.D.
Cardiology
- Atul R. Chugh, M.D., FACC, RPVI
- Thomas J. Failinger, M.D.
- Amanda Jo Lyon, M.D.
- Charles R. Taylor, M.D.
- William B. Wince, M.D.
Interventional Cardiology
- James B. Hermiller Jr., M.D.
- Jason Jayroe, M.D.
- Navneet Lather, M.D.
Interventional Radiology
- Kannan Natarajan, M.D.
Thoracic Surgery
- Anthony J. Ascioti, M.D.
- Vijay K. Nuthakki, M.D.
- Nakul Valsangkar, M.D.
Vascular Surgery
- Danielle N. Campbell, M.D.
- Sajjad M. Hussain, M.D.
- Randy J. Irwin, M.D.
- Brent D. Marsden, M.D.
- Kevin M. Sheridan, M.D.
- Sarah E. Strot, D.O.
Hospital
Serving Indiana since 1872, Ascension St. Vincent is dedicated to providing care and support in your healing journey.
Anesthesiology
- Daniel Price, M.D.
Emergency Medicine
- Jennifer Barker, M.D.
- Tonya Joy Hole, M.D.
- Jason D. Little, M.D.
- Molly C. Wormley, M.D.
Hospice & Palliative Medicine
- Peter H. Baenziger, M.D.
- Colleen C. Brown, M.D.
- Kayla M. Herget, M.D.
- Lindsay A. Schroeder, M.D.
- Natasha J. Tomlinson, M.D.
Internal Medicine
- Devon N. Kendrick, M.D.
Internal Medicine, Geriatric Medicine
- Katherine Palmisano, M.D.
Pediatrics
Get all the care your child needs, from pediatric primary care to advanced specialty care and emergency care.
Adolescent Medicine
- Lanette C. Brown-Jones, M.D.
Clinical Cytogenetics And Genomics
- Bradley T. Tinkle, M.D.
Clinical Cytogenetics And Genomics, Neonatology
- Luis F. Escobar, M.D.
Neonatal and Perinatal Medicine
- Jonathan W. Buechler, M.D.
- Shaun A. Hicks, M.D.
- Melissa B. Leedy, M.D.
- Taha Ben Saad, M.D.
Pediatric Cardiology
- Saif Ali Shakir Aljemmali, M.D.
- Anil Kumar, M.D.
- Sanjay R. Parikh, M.D.
- Leonard A. Steinberg, M.D.
Pediatric Critical Care Medicine
- Andrew L. Beardsley, M.D.
- Michelle Gombas, D.O.
- Kay A. Sichting, M.D.
Pediatric Developmental Behavioral
- Parul Vasant Vora, M.D.
Pediatric Developmental Behavioral, Neurodevelopmental Disabilities
- Jessica Nell Green, M.D.
Pediatric Endocrinology & Diabetes
- Jason L. Buckner, M.D.
- Eric Kirtwei Chang, M.D.
Pediatric Gastroenterology-Digestive Health
- Sheela Deivanayagam, M.D.
- Rachel K. Dunn, M.D.
- Elizabeth A. Schaefer, M.D.
- Eric E. Tibesar, M.D.
Pediatric Hematology and Oncology
- Douglas A. Cipkala, M.D.
- Jessica F. Goodman, M.D.
- Bassem I. Razzouk, M.D.
Pediatric Hospitalist
- Elizabeth Carroll Dodson, M.D.
- Rebecca J. Rothstein, D.O.
Pediatric Infectious Disease
- Christopher E. Belcher, M.D.
Pediatric Nephrology
- Daniel W. McKenney, M.D.
- Elizabeth M. Spiwak, M.D.
Pediatric Nephrology, Pediatric Endocrinology & Diabetes
- Mona A. Zawaideh, M.D.
Pediatric Neurology, Child And Adolescent Neurology
- Lauren B. James, M.D.
Pediatric Neurology, Child And Adolescent Neurology, Epilepsy
- Lisa M. McGuire, M.D.
- James C. Pappas, M.D.
Pediatric Orthopedic Surgery
- Matthew D. Abbott, M.D.
- Joseph F. Bellflower, M.D.
- Jonathan H. Wilhite, M.D.
Pediatric Otolaryngology - Ear, Nose & Throat
- Ronda A. Hamaker, M.D.
- Richard C. Miyamoto, M.D.
Pediatric Plastic/Cosmetic Surgery
- Jason M. Blocksom, M.D.
Pediatric Pulmonology
- Nizar M. Kherallah, M.D.
- Chandar Ramanathan, M.D.
- Ramindrajit S. Sufi, M.D.
- Olatunji W. Williams, M.D.
Pediatric Sleep Medicine
- Leyla Akanli, M.D.
Pediatric Surgery
- Brett W. Engbrecht, M.D., MPH
- Evan R. Kokoska, M.D.
- Chad A. Wiesenauer, M.D.
Primary and Specialty Care
Doctors at Ascension St. Vincent are here for all your care needs, including new symptoms and concerns, chronic conditions and emotional health.
Endocrinology
- Vishal Sehgal, M.D.
Endocrinology, Diabetes & Metabolism
- Brian J. Ulmer, M.D.
Family Medicine
- Cathy A. Bryant, M.D.
- Sarah M. Coleman, M.D.
- Kimberly N. Smith, D.O.
Gastroenterology - Digestive Health
- Murad A. Aburajab, M.D.
- Mazen Alsatie, M.D.
- Amanda F. Swingley, D.O.
- Sweta R. Tandra, M.D.
Geriatric Medicine
- Staci L. Hollar, M.D.
- Anne N. Knox, M.D.
- Kevin M. McNulty, D.O.
- Nicole A. Slaten, D.O.
Infectious Disease
- Markian R. Bochan, M.D., PhD
- Hassan A. Elmalik, M.D.
- Omar Elsheikh, M.D.
- Tracey R. Ikerd, M.D.
- Chad E. Tewell, M.D.
Internal Medicine
- Marla C. Current, M.D.
- Rachelle Grace C. Greist, M.D.
- Paul J. Hamori, M.D.
- Matt B. Helmen, M.D.
- Stephen J. Knaus, M.D.
- Samantha R. Loeser, M.D.
- Karen C. Wendowski, M.D.
Otolaryngology - Ear, Nose & Throat
- Joshua B. Greene, M.D.
- Joseph W. Tortorich, D.O.
Pediatrics
- Amanda Ruth Beach, M.D.
- Jim G. Megremis, M.D.
- Sarah Olvey, D.O.
- Katherine M. Pedersen, M.D.
Pulmonary Medicine
- Emily J. Cochard, M.D.
- Mark A. Mastrodicasa, M.D.
- Brent M. Toney, D.O.
Surgery
Experienced surgeons at Ascension St. Vincent deliver advanced surgical care that’s right for you.
General Surgery, Bariatric Surgery
- David Diaz, M.D.
Plastic And Reconstructive Surgery, Cosmetic Surgery
- Riesa M. Burnett, M.D.
- Jeffrey T. Gibbs, M.D.
- Justin W. Hart, D.O.
- Robert M. Paul, M.D.
- Ian C. Sando, M.D.
Women’s Services
Whether you need a wellness exam, OB-GYN or maternity care, cancer screenings or other care, doctors at Ascension St. Vincent are here for you.
Breast Surgery
- Erica M. Giblin, M.D.
- Kristen B. Govert, M.D.
- Christina J. Kim, M.D.
Gynecologic Oncology
- Megan E. Buechel, M.D.
- Michael J. Callahan, M.D.
- Sarah K. Goodrich, M.D.
- Hilary D. Hinshaw, M.D.
Maternal & Fetal Medicine
- Tovah A. Buikema, D.O.
- Dawn Zimmer, M.D.
Obstetrics & Gynecology
- Maram A. Said, D.O.
