About Wassim M. Ballan, MD

Wassim Ballan, MD, is a pediatrician specializing in pediatric infectious diseases. Dr. Ballan serves as the division chief of Infectious Diseases and also medical director of the Antimicrobial Stewardship Program and associate director of the Infection Prevention Program. Dr. Ballan came to Phoenix Children's in 2007 and loves the people and patients he works with.

After volunteering with the Lebanese Red Cross as a teenager, Dr. Ballan knew he wanted to fulfill his dream of becoming a physician. He earned his medical degree and did an internship at the American University of Beirut. Dr. Ballan completed a pediatric residency at the State University of New York-Upstate Medical University, followed by a pediatric infectious diseases fellowship at the University of California, San Francisco.

Dr. Ballan is board certified in pediatrics and pediatric infectious diseases by the American Board of Pediatrics. He's a member of the Infectious Diseases Society of America and the Pediatric Infectious Diseases Society. Phoenix Magazine has named him a "Top Doc" for numerous years and one of their "Great 48" in 2021.

Dr. Ballan has advanced his field through research, most recently publishing COVID-related studies. He's also an invited presenter at professional conferences and meetings.

When it comes to patient care, Dr. Ballan takes time to listen and get to know patients and their families beyond their health concerns. He makes it a priority to explain his thought process for making a diagnosis and treatment recommendations.

When he's not working, Dr. Ballan values spending time with his family and friends. He enjoys hiking close to home as well as in national and international parks.

Medical School / Education

American University of Beirut, Lebanon


American University of Beirut, Lebanon


(Pediatrics) SUNY Upstate Medical University, Syracuse, NY


University of California, San Francisco, CA

Pediatrics & Pediatric Infectious Diseases

American Board of Pediatrics

Great 48, PHOENIX magazine, 2021

Top Doctor Recipient, PHOENIX magazine

Professional Affiliations

Member, Pediatric Infectious Diseases Society

Member, Infectious Diseases Society of America

Lapp SA, Abrams J, Lu AT, Hussaini L, Kao CM, Hunstad DA, Rosenberg RB, Zafferani MJ, Ede KC, Ballan W, Laham FR, Beltran Y, Hsiao HM, Sherry W, Jenkins E, Jones K, Horner A, Brooks A, Bryant B, Meng L, Hammett TA, Oster ME, Bamrah-Morris S, Godfred-Cato S, Belay E, Chahroudi A, Anderson EJ, Jaggi P, Rostad CA. Serologic and Cytokine Signatures in Children with Multisystem Inflammatory Syndrone and Coronavirus Diseases 2019. Open Forum Infect Dis. 2022 Feb 24; 9(3)

Godfred-Cato S, Abrams JY, Balachandran N, Jaggi P, Jones K, Rostad CA, Lu AT, Fan L, Jabbar A, Anderson EJ, Kao CM, Hunstad DA, Rosenberg RB, Zafferani MJ, Ede KC, Ballan W, Laham FR, Beltran Y, Bryant B, Meng L, Hammett TA, Oster ME, Bamrah Morris S, Belay ED. Distinguishing Multisystem Inflammatory Syndrome in Children From COVID-19, Kawasaki Disease and Toxic Shock Syndrome. Pediatr Infect Dis J. 2022 Jan 25. Online ahead of print.

Dove M, Jaggi P, Kelleman M, Abuali M, Ang JY, Ballan W, Basu S, Campbell J, Chikkabyrappa S, Choueiter N, Clouser K, Corwin D, Edwards A, Gertz S, Ghassemzadeh R, Jarrah R, Katz S, Knutson S, Kuebler J, Lighter J, Mikesell C, Mongkolrattanoathai K, Morton T, Nakra N, Olivero R, Osborne C, Panesar L, Parsons S, Patel R, Schuette J, Thacker D, Tremoulet A, Vidwan N, Oster M. Multisystem Inflammatory Syndrome in Children: Survey of Protocols for Early Hospital Evaluation and Management. J Pediatr. 2021 Feb; 229:33-40

Cantey PT, Weeks J, Edwards M, Rao S, Ostovar GA, Dehority W, Alzona M, Swoboda S, Christiaens B, Ballan W, Hartley J, Terranella A, Weatherhead J, Dunn JJ, Marx DP, Hicks MJ, Rauch RA, Smith C, Dishop MK, Handler MH, Dudley RW, Chundu K, Hobohm D, Feiz-Erfan I, Hakes J, Berry RS, Stepensaski S, Greenfield B, Shroeder L, Bishop H, de Almeida M, Mathison B, Eberhard M. The Emergence of Zoonotic Onchocerca lupi Infection in the United States - A Case-Series. Clin Infect Dis. 2016 Mar 15;62(6):778-83

Melo KM, Carvalho KI, Bruno FR, Ndhlovu LC, Ballan WM, Nixon DF, Kallas EG, Costa-Carvalho BT. A decreased frequency of regulatory T cells in patients with common variable immunodeficiency. PLoS One. 2009 Jul 29;4(7):e6269.


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