Meet the current residents in the Department of Radiology.

Radiology Chief Residents

PGY-4 Daniel McKenzie, DO

Daniel McKenzie, DO

Senior Chief

  • Internship: St. Anthony Hospital Transitional Year
  • Medical School: Arkansas College of Osteopathic Medicine
  • Areas of Interest in Radiology: MSK, General and Emergency Radiology
  • Outside Interests: Family time outdoors, skiing, fly fishing, scuba diving, cinema
Junior Chief, John Cleek III

John Cleek III, MD

Junior Chief

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: MSK, Neuro, Breast
  • Outside Interests: Time with my wife and 3 kids. Cheering on the Mizzou Tigers and KC Chiefs. Working out. Investing. Grilling and smoking some tasty meats.

R1, PGY-2 Residents

Samantha Baxter, DO

Samantha Baxter, DO

Interventional Radiology - Integrated

  • Internship: University of Missouri - Columbia, General Surgery Prelim
  • Medical School: Kansas City University College of Medicine
  • Areas of Interest in Radiology: Peds IR, Interventional Radiology, and MSK
  • Outside Interests: Pilates, cooking, photography, gardening, calligraphy, and learning new languages.
Jack Dirnberger, MD

Jack Dirnberger, MD

Diagnostic Radiology

  • Internship: University of North Dakota Transitional Year
  • Medical School: University of North Dakota School of Medicine
  • Areas of Interest in Radiology: MSK and Neuro
  • Outside Interests: 
Lauren Gann, MD

Lauren Gann, MD

Diagnostic Radiology

  • Internship: University of Missouri - Columbia, Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia School of Medicine
  • Areas of Interest in Radiology:
  • Outside Interests: 
Joshua Greaser, MD

Joshua Greaser, MD

Diagnostic Radiology

  • Internship: University of Missouri - Columbia, General Surgery Prelim
  • Medical School: University of Missouri - Columbia School of Medicine
  • Areas of Interest in Radiology:
  • Outside Interests: 
Ryan Lei, DO

Ryan Lei, DO

Diagnostic Radiology

  • Internship: Trinity Health Grand Rapids Transitional Year
  • Medical School: Des Moines University College of Osteopathic Medicine
  • Areas of Interest in Radiology:
  • Outside Interests: 
Ravi Patel, MD

Ravi Patel, MD

Diagnostic Radiology

  • Internship: University of Missouri - Columbia, Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia School of Medicine
  • Areas of Interest in Radiology:
  • Outside Interests: 
Travis Rushton, DO

Travis Rushton, DO

Diagnostic Radiology

  • Internship: HCA Healthcare Sunrise Health Internal Medicine Prelim
  • Medical School: A.T. Still University College of Osteopathic Medicine
  • Areas of Interest in Radiology:
  • Outside Interests: 

R2, PGY-3 Residents

Alexander Alvarado, MD

Alexander Alvarado, MD

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: MSK and IR
  • Outside Interests: Woodworking, home improvement projects, gardening, lifting, and taking care of my family
Jacob Benson, MD

Jacob Benson, MD

Interventional Radiology - Integrated

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Washington School of Medicine
  • Areas of Interest in Radiology: General IR, Interventional Oncology, PAD, Peds IR
  • Outside Interests: Hiking, skiing, pickleball, teaching my dog new tricks, lifting
Katherine LaFoe, DO

Katherine LaFoe, DO

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: A.T. Still University Kirksville College of Osteopathic Medicine
  • Areas of Interest in Radiology:
  • Outside Interests:
Amy Marr, MD

Amy Marr, MD

Diagnostic Radiology

  • Internship: University of Chicago Preliminary Medicine
  • Medical School: Chicago Medical School, Rosalind Franklin University of Medicine & Science
  • Areas of Interest in Radiology: Musculoskeletal and IR
  • Outside Interests: my two dogs and two cats, reading, embroidery, medieval history
Colby Neumann, DO

Colby Neumann, DO

Diagnostic Radiology

  • Internship: Ascension St Vincent Hospital Indianapolis - Transitional Year
  • Medical School: Kansas City University College of Osteopathic Medicine
  • Areas of Interest in Radiology: Neuro and MSK
  • Outside Interests: Premier league, basketball, reading, working out, movies, traveling, spending time with family and friends
Vishruth Thaghalli Sunilkumar, MD

Vishruth Thaghalli Sunilkumar, MD

Diagnostic Radiology

  • Internship: Sutter Health Family Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology:
  • Outside Interests:
Prasun Sharma, MD

Prasun Sharma, MD

Diagnostic Radiology

  • Internship: University of Pennsylvania - Urology
  • Medical School: Oakland University William Beaumont School of Medicine
  • Areas of Interest in Radiology: Neuro, MSK, and IR
  • Outside Interests: Personal Finance, Exploring CoMo outdoors with my wife and dog, Hanging out with my co-residents

R3, PGY-4 Residents

Brayton Ballenger, MD, MHA

Brayton Ballenger, MD

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: MSK, Neuro
  • Outside Interests: Golf, Tablerock lake, Travel, Mizzou athletics, Kansas City Chiefs football
John Cleek, MD

John Cleek, MD

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: MSK, Neuro, Breast
  • Outside Interests: Time with my wife and 3 kids. Cheering on the Mizzou Tigers and KC Chiefs. Working out. Investing. Grilling and smoking some tasty meats.
James Farmer, DO

James Farmer, DO

Diagnostic Radiology - ESIR Track

  • Internship: Creighton University General Surgery Prelim
  • Medical School: A.T. Still University Kirksville College of Osteopathic Medicine
  • Areas of Interest in Radiology: Interventional Radiology
  • Outside Interests: Cooking for friends, photography, Scuba diving, mountain climbing, and going to the gym.
Alexander Holm, MD

Alexander Holm, MD

Diagnostic Radiology

  • Internship: University of South Dakota Transitional Year
  • Medical School: Creighton University School of Medicine
  • Areas of Interest in Radiology: Neuroradiology
  • Outside Interests: Reading, sports, and board games
Abdelazeez Ihmeidan, DO

Abdelazeez Ihmeidan, DO

Diagnostic Radiology

  • Internship: HCA Healthcare LewisGale Medical Center Transitional Year
  • Medical School: New York Institute of Technology College of Osteopathic Medicine
  • Areas of Interest in Radiology:
  • Outside Interests:
Andrew LaRow, DO

Andrew LaRow, DO

Diagnostic Radiology

  • Internship: University of Illinois College of Medicine at Peoria Transitional Year
  • Medical School: A.T. Still University Kirksville College of Osteopathic Medicine
  • Areas of Interest in Radiology: Neuro, MSK, procedures
  • Outside Interests: Discovering new music, playing piano, reading, weightlifting, ultimate frisbee, 90s film/music
Maggie Sherrard, DO

Maggie Sherrard, DO

Interventional Radiology - Integrated

  • Internship: University of Kentucky College of Medicine Transitional Year
  • Medical School: University of Pikeville Kentucky College of Osteopathic Medicine
  • Areas of Interest in Radiology: Interventional Radiology
  • Outside Interests: In my spare time I enjoy traveling, spending time with friends and family, trying new restaurants and coffee shops in Columbia, and taking my dog Gus on neighborhood walks.

R4, PGY-5 Residents

Maamoon Amor, MD

Maamoon Amor, MD

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: Musculoskeletal Imaging
  • Outside Interests:
Jaime Gass, MD

Jaime Gass, MD

Diagnostic Radiology

  • Internship: MU General Surgery Prelim
  • Medical School: Creighton University School of Medicine
  • Areas of Interest in Radiology: Neuroradiology
  • Outside Interests:
Daniel McKenzie, DO

Daniel McKenzie, DO

Diagnostic Radiology

  • Internship: St. Anthony Hospital Transitional Year
  • Medical School: Arkansas College of Osteopathic Medicine
  • Areas of Interest in Radiology: MSK, General and Emergency Radiology
  • Outside Interests: Family time outdoors, skiing, fly fishing, scuba diving, cinema
Daniel Morcos, MD

Daniel Morcos, MD

Interventional Radiology - Integrated

  • Internship: University of California - Riverside General Surgery Prelim
  • Medical School: Northeast Ohio Medical University
  • Areas of Interest in Radiology: Interventional Radiology
  • Outside Interests:
Quayd Robertson, DO

Quayd Robertson, DO

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: Arkansas College of Osteopathic Medicine
  • Areas of Interest in Radiology: MSK, Neuro, Spine imaging/pathology
  • Outside Interests: 80s music/films, Spending time with my wife, Hunting/Fishing, Home renovation, Chiefs football, and Travel
Andrew Tarim, MD

Andrew Tarim, MD

Diagnostic Radiology

  • Internship: MU Internal Medicine Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: Neuroradiology
  • Outside Interests: NBA basketball, German cars, music
Jonathan Thacker, MD

Jonathan Thacker, MD

Diagnostic Radiology

  • Internship: MU General Surgery Prelim
  • Medical School: University of Missouri - Columbia
  • Areas of Interest in Radiology: Body and General Radiology
  • Outside Interests: Time with wife and kids, Fortnite, Japanese language and culture