He graduated from the University of the Witwatersrand, Johannesburg. Dr. Lieberthal's residency was performed at The Charlotte Maxeke Johannesburg Academic Hospital and Boston Medical Center. Clinical interests for Dr. Lieberthal include renal artery stenosis, polycystic kidney disease, and kidney stones. He honors Blue Cross/Blue Shield, Viant, Healthfirst, and more. He is professionally affiliated with Northport VA Medical Center.