Resources to Meet your Strategic Healthcare Business Needs

We provide full service strategic, financial and operations services to healthcare providers, accounting and legal firms, as well as Medicare Advantage and Managed Medicaid health plans.

View Our Services

The O’Sullivan Group provides a broad range of healthcare consulting and support services. Our expertise and focus on business, operations and management allows our clients to remain focused on day to day operations, while we evaluate and recommend proven strategies, real-world solutions and resources to execute and complete projects that have provided significant impact to the success of our clients across the country.

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Managed Care Strategy & Payer Relations

Performance Review

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Network Development

Medicare Advantage
Managed Medicaid
IPAs, ACOs & other VBNs

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Business Development

Strategic Planning & proformas
Service & Location expansion
Business office startup

A respected and trusted leader in the industry

Since 1999, The O’Sullivan Group has passionately and relentlessly pursued excellence in client service, results and ROI.  We have had the privilege of working with entrepreneurs with industry first innovations, as well as long time industry leaders.  We have built a team of experts, but most importantly we put our heart into being part of our clients’ success.  This trust has built and sustained our business.  We are proud to be a respected and trusted leader in the industry.

Spooner Physical Therapy
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What Our Clients Say


As a 30 plus year old hospital-based radiology practice, we realized that in order to survive we must grow and innovate.  In the last 12 months MDIG has expanded to 5 new states and added an outpatient interventional radiology procedure lab.  I was eager to make sure our contracts were at market rates.  I did not have time to provide much direction.  The O’Sullivan Group came in and interviewed me to learn my vision and translated that into an action plan.  They became like a direct report to me and freed me up to focus on lead, manage and grow the practice.  The O’Sullivan Group has been instrumental in identifying, soliciting, negotiating and securing the managed care contracts to ensure that we have the revenue streams and appropriate reimbursement rates to support our success and serve our hospital and patient clients.

Patrick Santore, CEO Medial Diagnostic Imaging Group


With a new executive team, the Board was looking for a significant financial turnaround.  We were losing physicians and struggling to recruit and pay new talent.  I had worked with The O’Sullivan Group previously and knew they could deliver results and work under the pressure of a tight timeline and build the confidence of our Board.  Within 6 months we were able to renegotiate our largest managed care contract to market rates and realized significant ROI.  From there we brought our other contracts in line.  Ultimately the increase in revenue stabilized the practice and resulted in significantly higher valuation in a joint venture relationship with an integrated hospital system.

Chuck Ribbe, Chief Financial Officer, The Orthopedic Clinic Association


The O’Sullivan Group has been instrumental in introducing the innovative Sante rehabilitation model to the payer market. They subsequently helped us add home health, hospice and outpatient therapy programs as Sante became a broader post-acute provider. They are a valuable resource, sounding board and trusted partner as we continue to innovate, adapt and grow.

C. Mark Hansen,
President and CEO


The O’Sullivan Group has been of great assistance in evaluating our reimbursement rates against benchmarks and guide our efforts to establish and maintain favorable market rates. They led our hospital professional services contracting and helped launch our office based Interventional Radiology roll-out to the key managed care payers. The O’Sullivan Group is a valuable resource whose flexibility complements and supplements our internal resources.

Mark Williamson, Chief Financial Officer, SimonMed Interventional

SimonMed Interventional