Our Team

Our team

Industry Leadership and Expertise

Our company was founded, and is led by, a group of seasoned healthcare and benefits professionals who have advanced pharmaceuticals, healthcare technology and human resources benefits through physician practices, hospitals, health systems, employer plans and directly to consumers.

Greg Paulus
Founder & CEO

Following 25 years of healthcare leadership at pharmaceutical company Pfizer and healthtech startups athenahealth and Plexus Healthcare Strategies, Greg has dedicated the past two years to the medical hemp and CBD marketplace. As Cohort’s CEO, Greg brings his team management, business development, revenue growth strategies and Cohort’s unique platform to the emerging worlds of cannabinoid science, partner development and product solutions.

Karissa Ostoski
Chief Customer Officer

Karissa has over 12 years of healthcare experience in business development, product design, marketing and advertising. Through her various leadership roles she has developed a proven track record of driving substantial revenue growth in competitive business markets while providing measurable improvements to a company’s brand value. Karissa’s passion for customer-driven healthcare solutions is inspiring and greatly valued on multiple levels.

Fernando Migliassi
Chief Operating Officer

Fernando is a purpose-driven entrepreneur and former corporate executive with a track record of launching new initiatives and businesses to drive company and product awareness, impact and revenues. He is experienced in developing and implementing multiple components of different business model strategies including operations, client services, sales and marketing, and legal within industries including HealthTech, Health & Wellness and 401(k) plan services.

Peter Quinones
Chief Digital & Marketing Officer

Peter is a skilled and creative eCommerce and digital marketing innovator and entrepreneur. He has an extensive background in Search Engine Optimization (SEO) and Marketing (SEM), Programmatic Advertising, SMS Marketing, Custom Analytics, as well as digital and traditional Branding, Advertising and Sales. As CDMO, Peter leads Cohort's external and internal digital development, operations and optimization strategies.

Michelle Weiner, DO, MPH
Medical Advisor

Dr. Weiner is double board certified in Interventional Pain Management and Physical Medicine and Rehabilitation. She practices integrative pain management focusing on the etiology and offering individualized holistic treatment options including CBD and cannabis. Her research focuses on using cannabis as a substitute for opioids in chronic pain patients and amongst seniors. Dr.Weiner completed her residency and fellowship training at the University of Miami.

Trevor Turner, M.D.
Medical Advisor

Dr. Turner is a board-certified Physical Medicine and Rehabilitation (PM&R) physician who specializes in minimally invasive image guided orthopedic procedures to place steroids, platelet rich plasma, and stem cell injections into damaged tissue to help patients recover function faster with lower risk.

Christopher Gay, M.D.
Medical Advisor

Dr. Gay is a board-certified pain physician and an accomplished interventional pain specialist. He earned his medical degree from the University of North Carolina at Chapel Hill, and subsequently completed his residency and fellowship training at New York’s Presbyterian Hospital at Columbia University.

Steve Harmon

Steve is a serial entrepreneur with over 30-years of experience successfully building companies. He has focused on starting companies through the development of strategic concepts, going to market, growth management into established businesses, and in several instances leading to successful exits. Most recently Steve was the CEO of NueHealth.