Meet the clinical advisory council.

Clinical Leaders Guiding Better Care

Clinical Advisory Council

Adam Koering

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Adam leads Revive’s financial strategy and enterprise planning, aligning capital, growth, and operational performance to support scalable care delivery. With more than 25 years of leadership across healthcare, technology, and high-growth organizations, he specializes in financial transformation, operational discipline, and building sustainable business models that expand access to affordable, whole-person care.

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Gary Douville

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Gary leads enterprise operations, product, engineering, customer success, and member experience across Revive’s integrated care platform. With more than 20 years of leadership in healthcare transformation and telehealth innovation, he focuses on building scalable systems, operational discipline, and connected care models that improve access, efficiency, and continuity of care.

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Dr. John Olsen

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John oversees pharmacy strategy and operations across Revive, expanding access to affordable, high-quality medication services as part of coordinated patient care.

As a healthcare entrepreneur, he has built and scaled pharmacy and healthcare technology platforms designed to improve operational efficiency and patient access. His work focuses on developing connected pharmacy solutions that support adherence, reduce cost barriers, and strengthen overall care delivery.

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Dr. Julie Marshall

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Dr. Marshall ensures behavioral health remains a core part of whole-person care by guiding clinical standards, care delivery models, and quality oversight across mental health services.

Her experience includes clinical quality management, crisis response, and behavioral health program design. She works to integrate mental health into broader healthcare delivery, supporting long-term engagement and continuity of care for patients across diverse populations.

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Kari Dwinnell

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Kari leads enterprise transformation, integration, and strategic execution at Revive, helping align systems, teams, and priorities across the organization. With more than 20 years of healthcare leadership experience, she specializes in operational excellence, organizational integration, and turning strategy into scalable action that improves performance, culture, and member outcomes.

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Mark Orlando

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Mark oversees pharmacy strategy and operations across Revive’s national platform, supporting affordable, high-quality medication access as part of coordinated care delivery. With 30 years of leadership experience across retail, specialty, and enterprise pharmacy, he brings deep expertise in scaling operations, strengthening compliance, and improving patient access and continuity of care.

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Sabrina Graham-Shaw

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Sabrina helps lead clinical and operational excellence across Revive, strengthening care delivery through quality, efficiency, and scalable systems. With more than 20 years of experience spanning patient care, clinical operations, and enterprise transformation, she focuses on optimizing workforce performance and advancing human-centered care at scale.

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Dr. Al Lemerande

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Dr. Lemerande believes that building strong, trusting relationships is at the heart of good medicine. With over 25 years of experience, he brings a thoughtful, down-to-earth approach to caring for individuals and families. He is U.S.-trained, having earned his medical degree from Tulane University, completed his internship at Virginia Baptist Hospital, and finished his Family Medicine residency at Washington Hospital in Pennsylvania. Dr. Lemerande is board certified in Family Medicine since 1999, and has cared for patients across a wide range of settings—including urgent care, emergency medicine, and sports medicine. Whether treating an injury or guiding someone through long-term wellness, he’s dedicated to supporting each patient’s unique journey to better health.

Dr. Andrew Oswari

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Dr. Oswari believes being a physician is both an honor and a profound responsibility. He is committed to treating the whole person—physical, emotional, and spiritual—with the goal of helping patients achieve true healing. He provides comprehensive care and services to Revive’s members. Dr. Oswari is U.S.-trained, having graduated from Loma Linda University School of Medicine, then completed his residency at Virtua Health System in Mt. Holly, NJ. He has been board certified in Family Medicine since 2000 and a Fellow of the American Academy of Family Physicians. He serves as a Clinical Assistant Professor at Robert Wood Johnson Medical School and has been with the Chung Institute of Integrative Medicine since 2004.

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Dr. David Marquis

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Dr. Marquis has spent his career focused on the chronic conditions that most affect patients day to day, including type 2 diabetes, hypertension, asthma, and thyroid disease. Board-certified and known for his clinical precision, he brings deep experience across primary care, urgent care, and weight health. He earned his degree from NYIT College of Osteopathic Medicine and completed his residency at Mount Sinai Medical Center, making him a reliable partner for both long-term health management and immediate medical needs.

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Dr. Sheila Davis

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Dr. Davis is a board-certified Family Medicine physician whose career has spanned private practice, community health centers, and executive leadership as a co-founder and Medical Director. She brings clinical depth and a patient-centered approach to every visit, with a focus on accessible care and building lasting health foundations for individuals and families. She earned her medical degree from the Philadelphia College of Osteopathic Medicine.

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Dr. Andy Eskew

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Dr. Eskew leads clinical strategy and multi-state physician governance, supporting compliant, physician-led care delivery nationwide.

With more than 25 years of clinical and executive leadership experience, he brings expertise in health system operations, medical group leadership, and value-based care transformation. His work focuses on aligning high-quality clinical care with scalable operational models that improve access and efficiency across diverse patient populations.

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