Victoria Williams

Victoria Williams, Account Manager, Provider Enrollment and Credentialing in the TOG Credentialing division of The O’Sullivan Group assists clients with a focus on ensuring accuracy, timeliness and follow up are top priority. With nearly a decade of experience in the healthcare industry and credentialing environment, Victoria is an asset to the clients she manages ensuring their providers are enrolled and credentialed and revenue generating as quickly and efficiently as possible. Victoria’s leadership, organizational, and customer relations skills are valuable assets in her close collaboration with the firm’s clients.

Pamela Langston

Pamela Langston brings over 30 years of healthcare industry experience to her role as Contracting Consultant with The O’Sullivan Group. In her position, she is responsible for contract negotiations, credentialing management, and reimbursement financial analytics for clients. Pam’s many years in the industry including senior level positions with Commercial, Medicaid and Medicare Payors and direct experience in the provider setting, including large multi location oncology and hospital integrated delivery systems, brings significant experience and expertise to The O’Sullivan Group and its clients.

Mark Williamson

Mark has more than 30 years experience as a public sector CPA and Healthcare Executive. He has led numerous hospital-physician and practice-practice strategic alignments (mergers, acquisitions and contractual arrangements), along with several strategic service line planning efforts for large health systems and hospitals. Mark also specializes in capital acquisition for high growth initiatives, including diagnostic imaging equipment and interventional radiology OBL build out. Additionally he has led M&A activities, consolidation, physician compensation and productivity reporting initiatives.

Working collaboratively with all stakeholders, he has generated several million dollars in savings (significant and multi-year return on investment) for his clients.
Mark leads the firm’s engagements in

• Mergers and Acquisition
• Practice Valuations and Audits
• Equity and debt financing funding to support growth initiatives
• Financial planning, analysis and reporting
• Internal controls and financial and operational policies and procedures

Chris Asterino

Chris is a 35 year veteran healthcare business owner and executive, Mr. Asterino brings to clients a wealth of experience in building, leading, and sustaining a comprehensive medical billing and medical practice management services company.

Clients enjoy his engaging and easygoing personality, and appreciate his intense results oriented, hands on entrepreneurial leadership style and excellent problem solving and communication skills.

Mr Asterino leads engagements in Revenue Cycle Management, Practice Management and IT Systems and Software Interfaces between practices, hospitals and payers

Jill O’Sullivan

Jill serves in a dual role as Director of Operations and the head of our Insurance/Medicare brokerage and advisory team. Jill brings more than 30 years of diverse leadership experience to the firm. She is directly responsible for strategic operations for the O’Sullivan Group client service suite, while leading the organization in the areas of strategy, communications, business development and positioning.

Brian O’Sullivan

Brian is the President and founder of The O’Sullivan Group. As a strategic, entrepreneurial leader, Brian uses our consultants’ many years of experience to leverage our knowledge, research, and analytic tools to serve our clients in both the national and local markets. He is solutions and outcomes oriented focused on building strong provider and payor relationships and business opportunities. Recognized by his clients as a skilled and creative communicator, presenter and negotiator.

With more than 30 years’ experience in health care organization management and consulting for both payors and providers, Brian’s expertise is extensive and includes new business development, health services valuation and financial analysis, health care market research, medical staff partnership planning, and physician practice management consulting.