Dr. Rossi's research currently focuses on appropriate medication use in older veterans. Other interests include development and evaluation of new models of care in older adults, dementia care, telehealth and dementia, and cognitive decline and driving safety.

Her teaching activities include a variety of clinical, didactic, and mentoring interactions with medical students, residents and fellows, as well as teaching non-physician clinician trainees (nurse practitioner, physician assistant, psychology, pharmacy, speech therapy, occupational therapy, physical therapy, social work, speech therapy, audiology) in geriatric medicine topics.

Dr. Rossi is the current Associate Director for Clinical Care with the GRECC of the VA Pittsburgh Healthcare System. She is the Director of the Geriatric Evaluation and Management(GEM) Clinic at the VA Pittsburgh Healthcare System. This interdisciplinary outpatient consultative clinic provides frail older veterans with needed comprehensive geriatric assessment.

She also directs the VA Dementia Clinic and the VA TeleDementia Clinic which provide care to Veterans with dementia and support to their families over the course of their illness. In addition, Dr. Rossi is medical director of the VA Geriatric Driving Safety Clinic, which uses an interdisciplinary team to assess driving safety in Veterans with cognitive decline.