About our fellows

The Ohio State Division of Nephrology is committed to training the next generation of professionals in kidney care. We offer several fellowship programs that help students strengthen their knowledge of sub-disciplines such as kidney and pancreas transplantation as well as adult-pediatric nephrology.

Nephrology Fellows

Second year fellows

Erica Citrell, DO

Erika Critell, DO 

Abdalla Ismail

Abdalla Ismail, MD 

Ali Rizvi

Ali Rizvi, DO 

Patrick Schaffer, DO

Patrick Schaffer, DO 


First year fellows

Arrsh Bajaj, MBBS

Arrsh Bajaj, MBBS

Medical School: Kasturba Medical College Manipal

Sai Prasad Desikan

Sai Prasad Desikan, MD

Medical School: Ross University

Neha Patel

Neha Patel, MD

Medical School: Avalon University School of Medicine, Caracao

Vince Ngo

Vincent Ngo, MD

Medical School: Saba University School of Medicine

Carter Wallace

Carter Wallace, DO 

Medical School: Touro University Nevada College of Osteopathic Medicine


Glomerular Nephrology Fellows

Madeline Chung

Madeline Chung, MD


Med/Peds Nephrology Fellows

Second year fellows

Mayra Osequera

Mayra Osequera, MD

First year fellows

Denise Kimbrough

Denise Kimbrough

Medical School: Medical University of South Carolina College of Medicine

Past Fellows


  • Madeline Chung, MD - Glomerular Nephrology fellowship at The Ohio State University
  • Marie Fouad, MD - Private practice in Texas
  • Omer Sheikh, MD - Private practice in Akron, OH
  • Luis Soto, MD - Private practice in Columbus, OH
  • Liza Cholin, MD (transplant fellow) - Transplant faculty at The Ohio State University
  • Jessamyn Carter, MD (med/peds fellow) - Faculty at The University of Michigan


  • Dharika Shah, DO – Private practice, Cincinnati, OH
  • Kara Kaplan, MD – Critical care nephrology fellowship at University of Cincinnati
  • Alka Tyagi, DO – Critical care nephrology in St. Louis, MO
  • Karim Attia, MD – Private practice in Columbus (Ohio Kidney Consultants)
  • Priya Yenebere, DO (transplant fellow) – Transplant faculty at Indiana University


  • Mohan Doriaswamy, MD – Critical care nephrology, Texas Tech University, Lubbock TX
  • Brandon Dunmyre, DO – Faculty at Allegheny Health Network, Pittsburgh, PA
  • Karen Flores, MD – Transplant nephrology fellowship at Washington University, St. Louis, MO
  • Tariq Baig, MD – Transplant nephrology fellowship at Iowa University, Iowa City


  • Rasha Alawieh, MD – Transplant nephrology fellowship at University of Washington, Seattle, WA
  • Joe Tasch, DO – Private practice, Lancaster, OH
  • Tyler Gutkoski, MD – Joined OSUWMC nephrology faculty
  • Sherif Metwally, MD – Private practice, Detroit, MI
  • Jessica Nelson, MD (Med peds fellowship) – Joined OSUWMC nephrology faculty