Meet Our Team Home / About / Team Leadership Arden O’Connor Founder and CEO Diana Clark President Dr. Zachary Faas Vice President of Clinical Operations James Kostecki Vice President of Operations and Finance Margaret Stone Director of Employer Services Sam Van Kalkeren Director of Aging Services Dr. Marianna Kessimian Consulting Psychiatrist Christina Cicarella Director of Companion Services Alex McCarthy Director of Marketing Chris Ajemian Director of Operations Natalie Cohen Director of Intake Professionals Kelsy Lynch Employer Services Account Manager Erin Royer Behavioral Health Navigation Specialist David Carrigan Director of Digital Marketing/Clinical Case Manager Laura Menendez Business Development Associate Dr. Matthew Stahl Clinical Case Manager Justine Padula Clinical Case Manager Alex Kurjiaka Clinical Case Manager/Head of Talent Acquisition Glen Harnish Clinical Case Manager Kaitlin Gatti Office Manager Kelly Cochrane Operations Associate Sydney Larson Intake and Business Development Associate Jennie Kramer Senior Clinical Advisor Jeremy Varnum Director of Outdoor and Experiential Programming Sean M. Rose Diversity and Wellness Coach Whitney Johnson Senior Relationship Manager & Clinical Case Manager Dr. Jonathan Green Senior Advisor OPG is Here to Help. Contact Us Today.