Contact Us


ATTEST HEALTH CARE ADVISORS, LLC
5033 West Balmoral Avenue,
Chicago, IL 60630
(773) 251-0273

Contact us directly for more information on Attest’s audit approach and services.



Robert K. Oakleaf, CHCA, Principal and Chief Executive Officer
robert.oakleaf@attesthealth.com / (773) 251-0273

Bob has more than 25 years of experience in managed care compliance, health insurance financing, delivery and evaluation of business performance. He has led the HEDIS® audit practice at two of the Big Four accounting firms. Bob serves as a member of NCQA's Audit Methodology Panel.

Laura Hart, CHCA, Principal and Chief Operating Officer
laura.hart@attesthealth.com / (281) 468-2487

Laura has 10 years of health care organization auditing experience. Her main responsibilities include Medicare Data Validation audits, HEDIS compliance audits, managing internal audit projects, and assisting on other compliance projects for health care organizations.

Glen Braden, CHCA, Principal and Chief Financial Officer/ Chief Information Officer
glen.braden@attesthealth.com / (210) 602-4361

Glen has over 20 years of Managed Care experience both from the health plan and provider sides. He is an Health Plan veteran of system conversions, mergers and acquisitions, and reporting. Glen’s specialties include software systems, Medicare claim reimbursement, and capitation. He is Attest's technology leader and serves as a member of NCQA's Expert Coding Panel.

Christy Patterson, CHCA, Principal and Chief Compliance and Privacy Officer
christy.patterson@attesthealth.com / (845) 548-1307

Christy has been working with managed care organizations for over 15 years in a variety of roles supporting quality improvement and disease management reporting. Her client responsibilities include leading HEDIS, P4P and Medicare Part C and D Data Validation Audits.

Melissa Sheesley, CHCA, Principal and Chief Quality Officer
melissa.sheesley@attesthealth.com / (404) 660-0738

Melissa has more than 15 years of HEDIS and quality measurement experience including product management for a major certified software vendor. She is a certified HEDIS Compliance Auditor and leads several multi-state Medicare Part C and D Data Validations.

Karen Magill, Project Coordinator
karen.magill@attesthealth.com / (512) 375-3034

Karen has more than 10 years experience as an administrative coordinator within the Health Sciences arena. Her primary focus is on Attest's client relations and internal resources.



HEDIS is a registered trademark of the National Committee for Quality Assurance (NCQA). The HEDIS Compliance Audit is a trademark of NCQA.


Request More Information>

Please contact us if you would like additional information or a proposal on any of the services we provide.


Attest Health Care Advisors is an NCQA-licensed organization authorized to conduct HEDIS® audits. Only an NCQA-licensed organization is authorized to conduct HEDIS Compliance Audits™.