Norton Medical Group welcomes these new providers as of August 1, 2019

Author: Norton Healthcare

Published: August 18, 2019 | Updated: August 5, 2026

Sarah H. Callahan, M.D.

Norton Breast Radiology

Medical degree: University of Louisville School of Medicine
Residency: Radiology, University of Louisville Hospital

Leigh Ann Gebhardt, APRN

Norton Community Medical Associates – Shelbyville

Degree: Chamberlain University College of Nursing, Downers Grove, Illinois

Rangaraj K. Gopalraj, M.D., Ph.D.

Norton Community Medical Associates – Geriatrics

Medical degree: Kilpauk Medical College, Chennai, India
Doctorate degree: Physiology, University of Kentucky, Lexington
Residency: Family medicine, University of Kentucky, Lexington
Fellowship: Geriatric medicine and palliative medicine, University of Louisville School of Medicine

Kyle Hawkins, M.D.

Hawkins, Kyle M.D.

Norton Children’s Neonatology

Medical degree: University of Louisville School of Medicine
Residency: Pediatrics, St. Louis University School of Medicine, SSM Health Cardinal Glennon Children’s Hospital, St. Louis, Missouri

Chrystal L. Justice, APRN

Norton Heart & Vascular Institute

Degree: Northern Kentucky University, Highland Heights

Sayeed U. Khan, D.O.

Norton Children’s Medical Associates – Fern Creek

Medical degree: Kansas City University of Medicine and Biosciences, Kansas City, Missouri
Residency: Pediatrics, University of Louisville School of Medicine

Summer R. Lewis

Certified Surgical First Assistant
Norton Cardiothoracic Surgery – Audubon

Degree: Bluegrass Community & Technical College, Lexington, Kentucky

Daniel H. March, M.D.

Norton Orthopedic Specialists – Brownsboro

Medical degree: University of Cincinnati College of Medicine, Ohio
Residency: Orthopedics, University of Pittsburgh Medical Center, Pennsylvania

Scotty R. Newcomer, D.O.

Norton Orthopedic Institute

Medical degree: Philadelphia College of Osteopathic Medicine, Pennsylvania
Residency: Family medicine, University of Tennessee College of Medicine, Chattanooga, Tennessee
Fellowship: Primary care sports medicine, University of Louisville School of Medicine

Shannon O’Donnell, APRN

Norton Community Medical Associates – Dixie

Degree: University of Louisville

Tiffani Payne, M.D.

Norton Children’s Medical Associates – Okolona

Medical degree: University of Louisville School of Medicine
Residency: Pediatrics, University of Louisville

Michael J. Petry, M.D.

Norton Community Medical Associates – Crestwood

Medical degree: University of Louisville School of Medicine
Residency: Family medicine, University of Louisville School of Medicine

Renita D. Price, M.D.

Norton Children’s Medical Associates – Windy Hills

Medical degree: University of Louisville School of Medicine
Residency: University of Louisville School of Medicine
Fellowship: Pediatric critical care, University of Louisville School of Medicine

Danielle M. Roberts, APRN, CNM

Advocates for Women’s Health, a Part of Norton Women’s Care – St. Matthews

Degree: Frontier Nursing University, Hyden, Kentucky

Melissa O. Schellenberger, APRN

Schellenberger, Melissa O. APRN

Norton Neurology Services – St. Matthews

Degree: Spalding University, Louisville, Kentucky

Steve M. Schmidt, D.O.

Norton Inpatient Care Specialists

Medical degree: Chicago College of Osteopathic Medicine at Midwestern University, Downers Grove, Illinois
Residency: Primary care, Rush University Medical Center/Cook County Hospital, Chicago, Illinois

Gerasimos S. Stavens, M.D.

Norton Heart Specialists

Medical degree: University of Kentucky College of Medicine, Lexington
Residency: Internal medicine, St. Louis University Hospital/John Cochran VA Medical Center, St. Louis, Missouri
Fellowships: Cardiology, Long Island Jewish Medical Center, Queens, New York; clinical cardiac electrophysiology, Duke University Medical Center, Durham, North Carolina; cardiology, NewYork-Presbyterian Brooklyn Methodist Hospital, Brooklyn, New York; research/nuclear cardiology, Hartford Hospital, Connecticut

J. Ryan Stewart, D.O.

Norton Urogynecology Center – Downtown

Medical degree: Edward Via College of Osteopathic Medicine, Blacksburg, Virginia
Residency: Obstetrics and gynecology, Indiana University School of Medicine, Indianapolis
Fellowship: Female pelvic medicine and reconstructive surgery, University of Louisville School of Medicine

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