Fellows
Nephrology Fellows
First Year Fellows
Ziad Alahmadi, MBBS
Medical School: Umm Al-Qura University, Makkah - Saudi Arabia
Residency: University of Maryland Medical Center, Baltimore, Maryland
Clinical/Research Interests: Medical education innovation drives my passion, particularly the development of interactive learning tools that enhance engagement and clinical reasoning. I have been increasingly intrigued by artificial intelligence and its growing potential applications in nephrology as well. I am also drawn to transplant nephrology and glomerular diseases, especially given the rapid advancements and expanding clinical complexity within these fields.
A Personal Touch: I enjoy reading about history, exploring nature, hiking, and trying different cuisines. Baltimore has been a welcoming home for me since it has plenty of scenic hikes around the area, and neighborhoods that each have their own character and food scene, which I have really enjoyed discovering.
Haya H. Al Suradi, MD
Medical School: The University of Jordan
Residency: Kent Hospital/Brown University
Clinical/Research Interests: Home dialysis modalities, women's health in CKD, paraproteinemia disorders
A Personal Touch: Outside the hospital, I like hiking, especially in the fall and trying new places since I'm new to Baltimore while trying to find the perfect tiramisu.
Kirollos Eskander, MD
Medical School: St. George's University School of Medicine
Residency: University of Connecticut
Clinical/Research Interests: Electrolytes and Acid-Base Disorders
A Personal Touch: I enjoy riding motorcycles and recently adopted a cat who does not ride motorcycles. My favorite thing about Maryland thus far are the civil war battlefield historical sites and pit beef sandwiches as well as its proximity to Shenandoah national park.
Dina R. Gonzalez-Hernandez, MD
Medical School: Universidad del Sinú (Sinú University) in Montería, Colombia
Residency: MedStar Union Memorial Hospital
Clinical/Research Interests: Clinical Nephrology with a focus on Medical Education
A Personal Touch: I enjoy watching the sunrise with a good cup of coffee and love running, recently completed my first half marathon.
Rosario L. Madrid, MD
Medical School: Universidad Catolica de Honduras, Nuestra Señora Reina de la Paz.
Residency: Trinity Health Ann Arbor, Michigan.
Clinical/Research Interests: I'm drawn to Academics, with a special interest in Vasculitis and TMAs.
A Personal Touch: I'm a Salsa dancer and passionate for realistic face drawing. Baltimore perks? Its vibrant food scene and the unbeatable harbor views!
Alison Nguyen, DO
Medical School: Edward Via College of Osteopathic Medicine
Residency: Inova Fairfax Medical Campus
Clinical/Research Interests: Transplant Nephrology and IgA Nephropathy
A Personal Touch: I enjoy spending time with my family whenever I get the chance. I believe in staying active and trying to be active whether it is lifting weights, walking by the water, or being involved with VOLO sports. I am a big foodie and have explored a lot of the Baltimore food scene (which is impressive I must say!). I am hands on and enjoy cooking and doing DIY projects. I love Baltimore because it allows me to be by the water, explore an amazing food scene, and experience southern kindness in a city.
Second Year Fellows
Oluwadamilola “Dami” Adisa M.D
Medical School: University of Ghana Medical School
Residency: Louisiana State University Shreveport
Clinical/Research Interests: Renal Transplantation, Recurrent Glomerular disease after Kidney Transplantation
A Personal Touch: Family time is my happy place; I enjoy spending time with my wife and son. I am a HUGE Liverpool fan. In my spare time I enjoy looking up a travel adventure or binging a good TV show. Proud to call Baltimore home where you get a little bit of everything!
Nickolas Coombs, DO
Medical School: NYIT College of Osteopathic Medicine
Residency: University of Connecticut
Clinical/Research Interests: AKI, CKD, Home Dialysis
A Personal Touch: I love running around the inner harbor and stopping by our favorite ice cream place B’more licks! And more importantly, my wife, Emily, and I just welcomed our first son, Cooper!
Morgan Hedden, DO
Medical school: West Virginia School of Osteopathic Medicine
Residency: INOVA
Clinical/Research Interests: Interested in advocacy for underserved populations.
A Personal Touch: I enjoy sailing in the bay/Potomac!
Colton Jensen, MD
Medical school: University of Iowa Carver College of Medicine
Residency: University of Vermont
Clinical/Research Interests: Medical Education
A Personal Touch: My favorite spot to grab ice cream in Baltimore is B’more Licks!
Aditi Singh, MBBS
Medical School: Gandhi Medical College and Hospital, Secunderabad India
Residency: University of Connecticut, Farmington, CT USA
Clinical/Research Interests: Glomerular diseases, AKI, electrolytes
A Personal Touch: My hobbies include traveling and exploring new places, trying new cuisines, avid tennis fan, baking, and watching crime dramas. Love about Baltimore - waterfront, great seafood, watching a Ravens game.
Christina Tamargo
Medical school: University of Miami
Residency: Johns Hopkins
Clinical/Research Interests: All things nephrology and medical education; plans to work in academic medicine after graduation.
A Personal Touch: Outside of work, I like to run, play pickleball, and go to O’s games. My favorite pastime is boating.
Life in Baltimore
Baltimore Virtual Tour | The Office of Graduate Medical Education at Johns Hopkins Medicine
Johns Hopkins Fellowship | An Inside Perspective
Johns Hopkins University School of Medicine Division of Nephrology Fellowship Training Program
