Fellows

Nephrology Fellows

First Year Fellows

Sana Ahmed, MBBS

Medical School: Ziauddin Medical College

Residency: New York Presbyterian Brooklyn Methodist Hospital 

Clinical/Research Interests: glomerular diseases, lupus nephritis, transplant, electrolyte and acid-base disorders, hypertension and medical education 

A Personal Touch: I enjoy drawing mandala art, exploring new neighborhoods, attending theater performances and concerts, cycling, playing video games, reading books and spending time with family and friends. Things I like about Baltimore include city's waterfront, historic neighborhoods and vibrant food scene. 

Headshot of Sana Ahmed

Ammar Aladaileh, MBBS 

Medical School: Mu'Tah University, Jordan

Residency: Hennepin Healthcare, Minnesota  

Clinical/Research Interests: Glomerular diseases, home dialysis, nephrology medical education and simplifying complex medical concepts for learners. I am also interested in cardiovascular associations with ESRD and dialysis outcomes. 

A Personal Touch: Outside of medicine, I am a big soccer fan and enjoy watching matches, spending time in nature and exploring new places. I’m looking forward to exploring Baltimore’s waterfront areas and parks.  

Headshot of Ammar Aladaileh

Ishvinder Jeet Singh, MB, BCh, BAO 

Medical School: Trinity College Dublin, Ireland

Residency: MedStar Health Georgetown University, Baltimore

Clinical/Research Interests: Renal replacement therapy and the role of cardiometabolic health.

A Personal Touch: Outside of medicine, I enjoy cooking, collecting stationery and exploring the many hiking trails Baltimore has to offer. 

Headshot of Ishvinder Jeet Singh

Aman Pal, MBChB

Medical school: University of Galway, Ireland 

Residency: Albany Medical Center, Albany, NY 

Clinical/Research Interests: Medical education, acid-base disturbances and glomerulonephritis 

A Personal Touch: I enjoy staying active through soccer and beach volleyball, exploring new restaurants and cuisines, and traveling whenever I get the chance. 

Headshot of Aman Pal

Aleksandr Pospelov, MD

Medical School: Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia 

Residency: Yale-Waterbury Internal Medicine Residency Program (now UConn-Waterbury), Connecticut 

Clinical/Research Interests: I am interested in glomerular diseases, electrolyte and acid-base disorders and academic nephrology. Teaching has become one of the most meaningful parts of my training, and I hope to continue developing as a clinician-educator. 

A Personal Touch: Outside the hospital, I enjoy traveling, hiking, photography, exploring modern art museums and finding good coffee shops. I also speak Russian and Spanish, and I am excited to get to know Baltimore, especially its waterfront, neighborhoods, food scene and local culture.

Headshot of Aleksandr Pospelov

Jackson Rajendran, MD 

Medical School: Cebu Doctors’ College of Medicine, Philippines

Residency: Rutgers Health/Community Medical Center, New Jersey

Clinical/Research Interests: Acute kidney injury, chronic kidney disease, critical care nephrology and outcomes research. 

A Personal Touch: Outside of medicine, I enjoy traveling with my wife, playing chess, volleyball, cricket, and frisbee, and exploring history. As someone who loves historic landmarks, I enjoy visiting Fort McHenry and I am looking forward to continuing to explore Baltimore.

Headshot of Jackson Rajendran

Second 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.


Ziad Alahmadi

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.


Haya Al-Suradi

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. 


Kirollos Eskander

Christina Gaine

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. 


Christina Tamargo

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. 


Dina Gonzalez-Hernandez

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! 


Rosario Madrid

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.


Allison Nguyen

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

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