Donald J. Johann Jr., M.D. Hematologist/Oncologist
Primary Location
UAMS Medical Center
4301 W. Markham St.
Little Rock, AR 72205
- Appointment Phone Number
- 501-686-8000
New and Returning Patients
Overview
- Area of Expertise
- Cancer Care
- Patient Type
- Adults
- Language
- English

About Dr. Johann
Clinical Biography
As a medical oncologist, I focus on the application of advanced molecular profiling and high-throughput technologies for the characterization of genetic-based alterations in cancer cells. Areas of emphasis include cancer biology and bioinformatics; Next-Gen Sequencing (NGS), high-resolution identity-based mass spectrometry (proteomics) and laser capture microdissection (LCM).
I became a physician as a second career. Prior to medical school, I worked as an engineer for the Sperry/Unisys Corp for six years. Rising through the ranks, I directed a group of five engineers on research and development projects involving systems-level software (OS, compilers), avionic software and instrumentation.
Dr. Johann's Academic Background
Faculty Appointments
- Department of Biomedical Informatics
- Associate Professor
- Department of Internal Medicine — Division of Hematology and Oncology
- Associate Professor
Dr. Johann's Areas of Expertise

Cancer Care
The UAMS Winthrop P. Rockefeller Cancer Institute is Arkansas’ most comprehensive cancer treatment and research facility.
Locations Where Dr. Johann Practices

UAMS Medical Center , Primary Location
4301 W. Markham St.
Little Rock, AR 72205
- Appointment Phone Number
- 501-686-8000
New and Returning Patients