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Our Team

Advanced Recovery Systems’ mission is to develop a collaborative network of behavioral health treatment facilities that provide premium client-centric care and fiscal stability. This successful, balanced growth requires a synergy among a diverse team of professionals. Our medical, management, and marketing experts collectively focus on promoting a business model that generates success for each organization in Advanced Recovery System’s (ARS) portfolio. Our growth is determined by the success of our clients, and ARS’ executive team has an overwhelming amount of experience dedicated to meeting this goal.

Advanced Recovery Systems’ compassion for the client and expertise in the industry furthers our mission. We see a clear path to advancing the industry as a whole by aligning with behavioral health professionals who share our mission and values. Maximizing the client experience and streamlining the management process has made Advanced Recovery Systems an industry leader and a primary resource for maximizing growth within the behavioral health community.

Meet Our Executive Team

MITCHELL EISENBERG
CEO

Mitchell Eisenberg, MD, co-founded Sheridan Healthcare in 1994. He has served on the board of directors since inception and as its chairman and CEO from 1994 to November 2012. From November 2012 until November 2013, he served as its executive chairman and then as a director until the completion of the merger of Sheridan into AmSurg in July 2014. During his tenure as chairman and CEO, Dr. Eisenberg was instrumental in their multiple financial …

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LEWIS GOLD, MD
CHAIRMAN OF THE BOARD

Lewis Gold, MD, co-founded Sheridan Healthcare in 1994 and was the executive vice chairman. He was also on the board of directors of Sheridan Healthcare. Dr. Gold served on this board since the company’s inception and was instrumental in their its financial transactions, including an IPO in 1995 and four private equity sales since 1994. Dr. Gold was the executive vice president from 1994 to 1999 while Sheridan Healthcare was publicly …

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KEVIN WANDLER, MD
CMO

As the chief medical officer (CMO), Dr. Wandler designs and implements proven models of evidence-based therapeutic programming and ensures that each facility is providing exceptional client care. A national leader in the treatment of substance abuse and eating disorders, a frequent keynote speaker and a highly rated educator, Dr. Wandler brings over 30 years of experience to his new role at ARS …

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ALLISON WALSH
VICE PRESIDENT, BUSINESS DEVELOPMENT & BRANDING

Allison Kreiger Walsh is the vice president of business development and branding for Advanced Recovery Systems and all ARS-owned properties, including facilities in Colorado, Washington, Maryland, Ohio and Florida. As an advocate for quality patient care, Allison manages brand development, oversees marketing communications, negotiates third-party vendor contracts, and provides top-notch customer service to referral sources …

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More Executive Staff Members

JON EISENBERG, JD, MBA
EVP, CHIEF DEVELOPMENT OFFICER

Jonathan Eisenberg oversees acquisitions, development and marketing for ARS. Prior to joining ARS in April 2014, Mr. Eisenberg worked in Credit Suisse’s Mergers and Acquisitions departments across a wide range of industries, including healthcare, technology and consumer/retail. Representative transactions included Neiman Marcus’ sale from TPG and Warburg Pincus to Ares Capital for ~$6 billion, Inhibitex’s sale to Bristol Myers Squibb for ~$2.5 billion, Coastal Energy’s sale to …

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ROBERT FISHMAN
VICE PRESIDENT OF ADMISSIONS

Robert Fishman is the vice president of admissions at Advanced Recovery Systems, a position he has held since May of 2013. Robert prioritizes customer service by ensuring a seamless experience for patients, insurance providers and other partners. Before joining the ARS team, he was the admissions director for The Recovery Place …

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HUNTER MEFFORD
VICE PRESIDENT OF MARKETING

Hunter Mefford oversees marketing for ARS. Prior to joining ARS in September 2015, he worked across a wide variety of industries, including education, e-commerce, direct marketing, technology and consumer/retail. Mr. Mefford has led marketing departments for organizations ranging from small private equity held brands to national direct marketing and e-commerce retailers. He has built …

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MARTA NELSON

CHIEF NURSING OFFICER

Marta Nelson, RN, is the chief nursing officer (CNO) for Advanced Recovery Systems and is responsible for maintaining excellence in quality client care in each facility across the country. She has more than 30 years of experience in nursing and behavioral healthcare, working with clients who struggle with substance abuse, eating disorders and co-occurring disorders …

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STEWART GOLD
CHIEF LEGAL OFFICER

Stewart Gold serves as Advanced Recovery Systems’ general counsel and chief legal officer (CLO). He oversees day-to-day management of legal affairs, including corporate governance, human resources, and compliance. His responsibilities include spearheading ongoing acquisition activity, managing the implementation of a robust compliance program, working with company leaders to standardize core processes in the development of a fast-growing organization, and reviewing and …

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Paul Sorensen, Jr.
Chief Financial Officer

Paul has over 30 years of accounting and finance experience. Paul graduated with a bachelor’s degree at Philadelphia University and received his MBA at Widener University. Prior to joining ARS, Paul served as the CFO for EyeCare Services Partners, a private equity owned vertically integrated physician eye care practice. He also served as the CFO for Home Solutions…

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AMY CHARLEY
GENERAL COUNSEL

Amy Charley is the general counsel and chief compliance officer (CCO) for Advanced Recovery Systems. Ms. Charley graduated from the University of Miami School of Law and then went on to clerk on the United States 11th Circuit Court of Appeals for the Honorable Judge Peter T. Fay. Upon completing her clerkship, she became an associate at Holland & Knight where she worked on multi-district litigation for large international clients …

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LAURA CLARKE
SENIOR VICE PRESIDENT OF OPERATIONS

Laura Clarke is the senior vice president of operations for Advanced Recovery Systems. She is responsible for overseeing the successful management of each ARS treatment facility and recovery residence, always prioritizing quality client care, above all else. Laura has more than 30 years of experience in the healthcare industry and has worked with hundreds of medical and clinical providers across the country to maximize efficiency, productivity and satisfaction of clients …

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WENDY MAHLE

VICE PRESIDENT OF HUMAN RESOURCES

Wendy Mahle is responsible for employee relations, recruiting, benefits, training, compensation, and payroll. She graduated from the University of Iowa with a Master of Arts in human resources and received a Bachelor of Science in psychology from The Ohio State University. She also has held the Senior Profession Human Resources certification for over 15 years. Ms. Mahle has been a human resources leader for over 20 years, most recently with OPKO Health where she worked for six years before joining Advanced Recovery Systems.

Nanci Stockwell, LCSW, MBA

Chief Clinical and Education Officer

A dynamic leader and award-winning business strategist, Nanci Stockwell brings years of industry experience in behavioral health care to her role at Advanced Recovery Systems. As chief clinical and education officer, she develops and implements effective, evidence-based programs of care for several of Advanced Recovery Systems’ facilities nationwide. Her dedication to increased operational efficiency and customer engagement encourages new levels of corporate excellence focused on a comprehensive continuum of rehabilitative care. Nanci is also a licensed clinical social worker.

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