Executive Team

Dan Moore

Dan Moore

Chief Executive Officer

Dan Moore is the founder of RBS as well as a Managing Partner for RBS Evolution. With over twenty years of experience in the healthcare industry, Dan has focused more than half of his career in the field of radiation oncology. Dan founded Radiation Billing Solutions, Inc. in 2004.

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Greg Merrill

Greg Merrill

President

As President of RBS and RBS Evolution, Greg shares responsibility with the CEO for the development, growth, and management of both companies as well as our radiation oncology centers. Greg has over 20 years of administration and leadership experience in the healthcare industry.

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Denise Gerlach

Denise Gerlach

Vice President, Business Development and Marketing

Denise brings her passion for connecting physicians, patients, and communities to her work at RBS. She has over 20 years of experience working in the healthcare industry in a variety of Marketing and Business Development roles.

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Trip Leasure

Trip Leasure

Vice President, Project Development

Trip is responsible for overseeing cancer center building projects and maintaining current facilities to better serve cancer patients. He is driven to keep projects on schedule because every lost day keeps a patient from being able to receive treatment.

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Robert LoBue

Robert LoBue

Vice President, Hospital Services
Clinical Manager, RBSE

Robert is responsible for the development and growth of the Hospital Services division, which provides oncology billing solutions to hospital based practices. A licensed radiation therapist, Robert has over 20 years of experience in the physician practice and hospital outpatient setting.

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Allison McGaha

Allison McGaha

Vice President, Finance and Accounting

Allison oversees the accounting and finance functions of both RBS and RBS Evolution, including cash flow, financial reporting, forecasting, and investor relations. Allison has been a licensed CPA for 20 years and specializes in assisting outpatient healthcare companies with business solutions related to their financial operations.

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Melissa Barber

Melissa Barber

Director of Reimbursement

Having spent more than 15 years in Healthcare Reimbursement, Melissa brings a wealth of experience and knowledge to our billing department. Prior to joining RBS seven years ago, Melissa worked at Hemophilia Health Services in Nashville, TN.

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Jacob Welkely

Jacob Welkely

Director, Information Technology

Jacob is responsible for overseeing corporate data retention, data management, and network security. With nearly eight years in the Managed Service Provider field, Jacob is an expert in all facets of information technology infrastructure.

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Laura Purswell, SPHR

Laura Purswell, SPHR

Human Resources

With more than 25 years of human resources leadership experience, Laura works effectively with executive teams to achieve organizational goals through aligning HR strategies with business operations.  Her professional background includes consulting with small business, global and national corporations and governmental entities.

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