Strong, collaborative leadership for a new era of success
A unique health care organization was created in 2019 when Summit Medical Group, one of the nation’s premier independent multispecialty medical groups, merged with CityMD, the leading urgent care provider in the greater New York area. Today, the combined company, Summit Health, is expanding access to a full spectrum of high-quality health care services in the NY/NJ metropolitan area and provide patients with a new kind of care–one that’s kinder and more connected, where every patient has access to the complete care their health deserves. Driven by a shared vision and values, the Summit Health executive team is poised to lead the organization into a new era of growth and success.

Jeff Alter
Chief Executive Officer

Anthony Viceroy
President and Chief Operating Officer

Bethany Percha, MPH, PhD
SVP, Data Science

David Diamond
Chief Human Resources Officer

Rebecca Levy, Esq.
Chief Strategy Officer, General Counsel

Karen Graham, MS
Chief Integrations Officer

Robert Scoskie, MHA
Chief Business Development Officer

Lankford Wade
Chief Financial Officer

David Vignes, MBA
Chief Performance Officer

Jennifer Marchitto
Chief Operating Officer, New Jersey Region

Dan Frogel, MD
Chief Medical Officer, CityMD and NY South

Karen Dolman RN, MA
Chief Operating Officer, NY North

Patricia Calayag, MD
Chief Medical Officer, NY North

Justin Sivill, MHA, CMPE, FACHE
Chief Operating Officer, Oregon

Russ Massine, MD, FACP
Chief Medical Officer, Oregon

Abu Bakar
Chief Information Officer

Matt Gove
Chief Marketing Officer

David Mamikonyan
Chief Information Security Officer

Natalie Thigpen
Senior Vice President, Employee Experience, Culture, DEI

Kristen Lalowski
SVP of Product
