The WorldSource Team
Our Directors
D.W. “Chip” Pettigrew III, MD, FACEP
Chairman
Dr. Pettigrew began his career in emergency medicine in the US Army after completion of EM residency
Rick Pettigrew, CPC
President Emeritus
More than 25 years ago, WorldSource Co-Founder and President Emeritus Rick Pettigrew
Emily M. Osetek, CHBME
President and CEO
Emily Osetek is the President and Chief Executive Officer of PETTIGREW. Osetek has over 30 years of RCM expertise and is an industry leader in
D. W. "Skip" Pettigrew IV, MCSE
IT Director
Skip joined PETTIGREW in 2003 after graduating from the University of Georgia with a BBA in Management
Mahmoud Makki
Chief Technology Officer
Mahmoud Makki, (preferred to be called Makki), is the Chief Technology Officer at Pettigrew,
D.W. "Chip" Pettigrew III, MD, FACEP
Chairman
Dr. Pettigrew began his career in emergency medicine in the US Army after completion of EM residency. He worked in large academic EDs and had responsibility for multiple other areas of clinical work while in the military. Pettigrew left the military in the 1980s and moved to Athens GA to start a private, democratic EM group and oversee the emergency services for a large regional hospital. While there, Pettigrew founded a private coding and billing company that now does coding and RCM for millions of charts per year in multiple specialties across the country, with clients varying from small private practices to large multi-specialty group practices. Pettigrew is active and involved with his state medical society, state specialty society (Past President), national specialty society (Councilor), and is on the Board of Governors for the Emergency Medicine Policy Institute.
David Young, CPA
President & Chief Executive Officer
David Young is the President & Chief Financial Officer of PETTIGREW. Young came to PETTIGREW in 2005 following a decade-long tenure with large public accounting firms in Atlanta and in Athens, GA. Young first applied his extensive financial sector knowledge to the roles of CFO and COO before being promoted to CEO in 2009. Young is a visionary change management expert and team leader and has dedicated his time at PETTIGREW to pioneering a wide variety of tools and processes that have positioned the company at the head of its business sector. Young has consistently identified opportunities for growth and innovation, including the expansion of PETTIGREW into offshore operations in the Philippines, India and, most recently, in the middle east. Young is a member of the Healthcare Financial Management Association and has spoken at several international conferences on healthcare business process outsourcing (BPO). He is also a member of both the American Institute of Public Accountants and the Georgia Society of Certified Public Accountants.
Rick Pettigrew, CPC
President Emeritus
More than 25 years ago, WorldSource Co-Founder and President Emeritus Rick Pettigrew left his life as a financial planner behind to take over the role of Business Manager in the emergency department where his brother-in-law was the physician in charge. Only a few months later, the two men joined forces on their own venture: A small medical services firm specializing in emergency care.
As an exceptionally goal-oriented person, Pettigrew immediately dedicated his time to becoming an expert in emergency medical coding and quickly earned the designation of Certified Professional Coder. Since that time, he has not only helped grow WorldSource Healthcare to a thriving international company, but he has also become a highly sought-after consultant, writer, and conference speaker on medical business services, coding best practices, and more.
Today, Pettigrew is a driving force at WorldSource with a focus on stability and superior customer service. Under his guidance the company remains a service provider that identifies, evaluates, and adapts to client needs, rather than providing one-size-fits-all, cookie-cutter solutions. Pettigrew prides himself on leading by example and instilling a consistent sense of clear, honest communication in everything he and his team does.
Pettigrew lives in Athens, GA, where he serves as the Chairman of the Elder Board at his church, and recently celebrated his 46th anniversary with his wife, with whom he shares 5 children and 16 grandchildren. When he's not at work, he enjoys traveling, playing basketball, and teaching as an adjunct professor at Emmanuel College.
Rafik "Riki" Ishak
Executive Vice President & General Manager
Riki is a senior executive with broad international and multi-industry experience. He has a proven track record in starting and operating SMEs, doing business across borders. His work has involved implementing strategies and developing effective habits for accelerated growth, managing efficiency in given business processes, and ensuring timely compliance and delivery of quality products and services.
What matters to Riki the most in the business successes achieved over the years are the positive outcomes he has seen from mentoring individuals on the teams that he has developed. Through the leadership sessions that Riki has led, both in groups and one-on-one, his team members have enjoyed learning new perspectives about themselves and growing from them. His excitement to build great personal and team relationships as well as to provide accountability has been key in driving and achieving business objectives.
Emily M. Osetek, CHBME
President and CEO
Emily Osetek is the President and Chief Executive Officer of PETTIGREW. She has over 30 years of RCM expertise and is an industry leader in this field. Emily began her healthcare career working in the private hospital setting and learned all phases of Part A and B billing. She was later recruited by large RCM firms to help reengineer their companies for profitability as well as ensuring compliance with industry standards. Emily later bought and built her own RCM firm, Sourcenet Medical Billing Associates. She joined PETTIGREW in August 2019 as the result of the PETTIGREW acquisition of Sourcenet. Emily was named COO, and led our operations for the US, India and Philippines. She was promoted to CEO May 2022 and will continue to lead the company into its bright future.
Julie Dixon, SPHR, SHRM-SCP
VP of People & Culture
Julie Dixon is the VP of People and Culture. She has held several different positions at PETTIGREW since her employment began in 1989. She earned her HR certifications from the HR Certification Institute and the Society for Human Resource Management. She has helped develop the company culture, recruit the best talent, she handles compensation, benefits, labor and employee relations. Her mission is to provide HR solutions while helping the employees reach their full potential.
Julie lives in Monroe, GA with her family. She enjoys spending time with her family, pets and in the great outdoors.
D. W. "Skip" Pettigrew IV, MCSE
IT Director
Skip joined PETTIGREW in 2003 after graduating from the University of Georgia with a BBA in Management Information Systems. He studied under Rick Pettigrew to learn the processes of each department and how the office operated as a whole. Skip joined the IT department in 2006. Prior to becoming the Director of IT at PETTIGREW, he worked as a helpdesk technician for Athens Micro. He gained multiple certifications to become a Certified IT Professional, Server Administrator, and Microsoft Certified Solutions Expert. Skip enjoys working with his IT team to learn the newest technologies, to use the best practices for a secure, efficient, technical environment, and to provide the client with the best solutions.
Skip lives in Athens, GA with his wife and 3 kids. His hobbies include basketball, frisbee, and singing.
Clayton Fast
Director of Software Development
Clayton Fast is the Director of Software Development for PETTIGREW. Fast has been a technologist, software developer, and successful business owner in RCM for over three decades. He is highly customer oriented, has strong business development skills, and is well versed in all facets of software in the healthcare environment. Fast is currently developing advanced software, integrating artificial intelligence and advanced automation, and using analytics integration.
Mahmoud Makki
Chief Technology Officer
Mahmoud Makki, (preferred to be called Makki), is the Chief Technology Officer at Pettigrew, where he leads the Information Technology and software development units. His reputation as a digital visionary and leader in technology innovation precedes him as he brings over a decade of leadership experience in digital transformation projects globally and across multiple industries, including healthcare, telecom, and broadcast media. He is a Prince2 certified project manager and a Certified Change Manager with special focus in healthcare change projects, and brings a wealth of leadership experience to his role. He is well-versed in the latest developments in the technology field and is always on the lookout for new and innovative technologies that can benefit the organization.
Throughout his career, Makki has demonstrated a strong ability to communicate complex technical concepts to non-technical stakeholders, making him an effective leader in bridging the gap between the technical and non-technical teams. As the CTO, Makki is responsible for developing and implementing the company's overall technology strategy. He is a results-driven professional who is passionate about technology and its potential to drive business growth.
Makki's leadership and strategic thinking are unparalleled, and his ability to drive digital transformation and implement cutting-edge technology solutions make him a valuable asset to Pettigrew. He is committed to continuing to lead the technology team in achieving their goals and driving the company's success.