Colleen Guinn provides comprehensive representation and strategic counsel to a variety of health care providers, including hospitals and health systems, physician and specialty practice groups, individual health care professionals, and home health agencies. Working closely with Polsinelli’s team of seasoned health care attorneys, Colleen develops legal solutions for clients’ challenges in an ever-changing health care industry.

Colleen regularly handles licensing and reimbursement issues at the state and federal levels. Her work includes detailed analysis and insight for clients looking to implement both traditional and innovative health care models. She regularly assists clients with understanding Medicare and Medicaid coverage, billing, and payment, and is passionate about helping providers get paid and maintain compliance. Colleen has experience representing hospitals in Medicare appeals before the Provider Reimbursement Review Board.

Prior to joining Polsinelli, Colleen worked as a paralegal focused on representing clients in all stages of the patent litigation process and as an intern in the U.S. Senate. While in law school, Colleen also worked as a legal extern for a large public health system. 

Education

  • University of Virginia School of Law (J.D., 2019)
    • Virginia Law Review, Editorial Board
  • Georgetown University (B.A., 2014)

    Bar Admission

    • Colorado, 2019

    Recognition

    • Legal Extern for the University of Virginia Health System, Charlottesville, Virginia
    • Legal Writing Fellow, University of Virginia School of Law 
    Publications
    All Publications
    2026 Health Care Reimbursement Newsletter
    2026 is shaping up to be a pivotal year for health care reimbursement. From major CMS payment rules to evolving disclosure requirements, AI scrutiny, and mounting pressure on providers across the care continuum, the 2026 Health Care Reimbursement Newsletter highlights the developments you need to understand now to stay ahead. In this issue: 2025 Wrap-Up: Key CMS Enrollment Changes and Disclosure Developments What Hospitals & ASCs Need to Know About the 2026 Outpatient Prospective Payment and ASC Final Rule Durable Medical Equipment Update 2026 Medicare Physician Fee Schedule Final Rule Highlights Forecasting Medicaid Challenges for Providers in 2026 Rural Health Providers Face a Tough Financial Road in 2026 – Will the Rural Health Transformation Program Save Them? Medicare Advantage Reimbursement Implications from the 2027 Proposed Rule Looking Ahead to 2026: CMS
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    Virtual Oversight, Real Impacts: “Incident-To” and Beyond in CMS’s CY 2026 PFS Proposed Rule
    Key Takeaways CMS proposes to significantly expand the use of virtual direct supervision for incident-to services, removing prior limitations based on Professional Component (PC)/Technical Component (TC) indicators and Current Procedural Terminology (CPT) codes. Without these proposed changes, most services requiring direct supervision would revert to requiring the supervising practitioner’s physical presence after the PHE-era flexibility ends on December 31, 2025, and only a narrow subset of incident-to services will be eligible for virtual supervision starting on January 1, 2026. In the recently released Calendar Year (CY) 2026 Medicare Physician Fee Schedule (PFS) Proposed Rule, the Centers for Medicare and Medicaid Services (CMS) signal a significant shift toward modernizing Medicare’s supervision requirements for “incident to” services. Specifically, CMS proposes to make permanent the ability
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