Dr. Horn completed her medical education at Carol Davila Medical School in Bucharest, Romania. She moved to the United States in 2003 to complete an internal medicine residency at Jacobi Medical Center, followed by a one-year fellowship in Geriatrics at Albert Einstein College of Medicine.

She was then recruited as faculty in the Division of Geriatrics at Montefiore Medical Center and is currently an assistant professor of medicine and Director of the Geriatrics Inpatient Service at Moses.

Dr. Wanda Horn's interest in care of geriatrics hip fracture patients started in 2010 with the introduction of the geriatrics- orthopedics co-management of these patients. She presented her data at the 2013 American Geriatrics Society Meeting in Dallas. Her other clinical interests are related to the Geriatrics Hospitalist Service and include transition of care, safe hospital discharge, and improvement of inpatient care for elderly adults.

In 2015 Dr Horn started comanaging all trauma patients admitted under orthopedics service at Wakefield campus. She is providing preoperative assessment and postoperative evaluation with a goal towards improving medical care for elderly fracture patients. 

In 2017 she undertook the role of comanaging the elective joint replacement patients at Wakefield campus. She is directing a service that provides outpatient preoperative assessments for joint replacement patients and then comanages the same patients postoperatively in an effort to reduce complications and provide more satisfactory care for patients admitted to the Joint Replacement Center.