Meet the SHC Executive Leadership Team

The Power of Leadership and Innovation

“Leadership is not about being in charge.  Leadership is about taking care of those in your charge"

- Simon Sinek

Greg Headshot

Greg Palmer

President and Chief Executive Officer

Mr. Palmer served 8 years at Remedy Temp Inc. (REMX) as President and Chief Executive Officer. Palmer led the turn around and exit strategy, concluding with the successful sale in 2006. He currently serves as an operating partner and investor to private equity where he focuses his time and attention in the healthcare and healthcare staffing industries.

Through his consulting firm GPalmer and Associates, Mr. Palmer has been the buy side advisor on over 33 staffing industry acquisitions valued at more than $3.1billion dollars.

Palmer is a past member of the American Staffing Association Board of Directors. Staffing Industry Analysts in 2018 inducted him into the SIA Staffing Hall of fame.

Mr. Palmer has served 9 years as a director of the Orange County Community Foundation. He also serves on the advisory board of Hope Builders a healthcare focused social enterprise and workforce development non-profit, headquartered in Orange County, California.

Palmer and his wife Sally live in Orange County California, along with their 3 daughters and their families, which include six grandchildren.

Palmer received a B.S. in Economics from Morehead State University and is a member of the MSU Alumni Hall of fame.


Vickie Anenberg

Chief Operating Officer

As Chief Operating Officer, Vickie is responsible for SHC’s service delivery and operations.  Most recently she was President of the company’s Local and Allied Services, leading a team of professionals who manage business development and delivery of clinical staff for Supplemental Health Care’s prominent client list. 

She has more than 20 years of healthcare staffing experience, including serving as President of CCS, Cross Country Health Care’s Nurse and Allied Division, and founding her own highly successful consulting firm.  She has been named to Staffing Industry Analysts’ Top 100 Most Influential Executives in Staffing and Global Power 100-Women in Staffing lists and has been featured in Training Magazine and Working Mother Magazine.

Vickie has a degree from South Ohio Business College.  She and her family live in Delray Beach, Florida.


Chris Long

Chief Process Officer

Chris Long is Chief Process Officer, responsible for the company’s shared services, compliance, and operational support teams.  His focus is on driving operational efficiencies and process improvements in order to deliver the best service possible to the company’s clients, talent, and internal team.

Chris has been with Supplemental Health Care for 16 years, developing a comprehensive knowledge of the industry.  His expertise in areas including training, team building, leading process improvement taskforces, data visualization, and compliance/risk management ensures the company delivers on its promise.  He is a Six Sigma Green Belt and a former Staff Sergeant with the United States Army Reserves.

 Chris and his family live in Buffalo, New York.

Linda McDonnell

Linda McDonnell

President of Travel Nursing

As President of Travel Nursing, Linda is responsible for leading the sales, recruiting, and service delivery for the travel nursing division.  She joined Supplemental Health Care in 2012 and has almost 30 years of staffing industry experience.

 She works with the company’s divisional managers to develop staff and improve strategies, develops and implements recruiting strategies, and provides training/development for recruiting teams. Prior to joining Supplemental Health Care, Linda held leadership roles with Adecco, Spherion, and Interim Healthcare.

 Linda is an active volunteer with animal rescue organizations and is in the process of becoming a certified life coach.  She and her family live in Buffalo, New York.


Klaus Geiser

Chief Financial Officer

As Supplemental Health Care’s Chief Financial Officer, Klaus Geiser leads the company’s financial functions and strategies. Klaus is a recognized international business leader and has held leadership positions in the U.S., Switzerland, and Germany, with much of that experience in the staffing world. Klaus’s previous roles include time as CFO with Global Employment Solutions, CFO with Pontoon Solutions, and Director of Mergers & Acquisitions at the Adecco Group.

Klaus oversees SHC’s accounting, finance and technology teams, and he serves as a critical voice in the long-term planning for Supplemental Health Care’s market position and strategic direction.

He and his family currently live in Denver, Colorado.

Klaus holds a degree in International Management from Uppsala University in Sweden and an MBA from Universität Bayreuth in Germany.


Melissa Byington

Chief Sales Officer

Melissa Byington is a veteran in the staffing industry, with a career spanning more 20 years. Most recently, she led the two largest locum tenens staffing companies in the U.S. as an executive with CHG Healthcare. Her experience in staffing began as a physician recruiter, which lead to future roles as president of the CompHealth locum tenens division, group president at CHG Healthcare, and president of the National Association of Locum Tenens Organizations.

Over the years, Melissa has been recognized by publications inside and outside of healthcare. She was named one of Utah Business magazine’s 30 Women to Watch and has been included on Staffing Industry Analyst’s Staffing 100 and Global Power 100 Women in Staffing lists multiple times.

Melissa currently serves on several boards and committees in the healthcare space including SPG and the Children’s Center of Utah.  In addition she has served the past five years on the board of trustees for National Crittenton focusing on systems change for girls and young women impacted by chronic adversity, violence and injustice.

She and her family split their time between Utah and Arizona.

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