Avalere Health
An Inovalon Company

Health Economics & Outcomes Research

Deliver Evidence

Heightened demands from patients, payers and providers for more information on cost, quality, and outcomes continue to elevate the evidentiary bar. The flood of real world data, clinical trial results, registries, and other data sources creates risks and opportunities as all of this information shapes coverage and treatment decisions, defines value, and impacts patient access. Equipped with a deep understanding of the policy landscape, payer evidentiary demands, and provider behavior, Avalere provides insight on the challenges and opportunities that exist within this space. We combine our broad health economics and outcomes research (HEOR) experience, clinical expertise, payer and provider knowledge, and analytical capabilities to deliver breakthrough evidence generation strategies.

What's Your Challenge?

  • ​Evidence Generation Strategies
  • ​Value Proposition Development
  • ​Observational Research
  • ​Health Economic Models

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Meet a few of our experts ready to partner with you.

All Staff

Michael Johnsrud

Senior Vice President


Michael Johnsrud, Senior Vice President, leads our health economics and outcomes research group. He provides guidance to clients by helping them create strategies to generate the needed clinical and economic evidence to inform stakeholders in the marketplace. In addition, he designs and conducts studies to analyze how prescription drugs, medical devices, and various interventions impact resource utilization and patient quality of life. Michael has particular expertise in prescription reimbursement policy in Medicaid, Medicare, and private-sector plans and the economics of the marketplace for community pharmacy and prescription drug benefit programs.

Prior to joining Avalere, Mike was Associate Director of The Center for Pharmacoeconomic Studies at the University of Texas at Austin. Mike received an Award of Excellence from the Journal of Managed Care Pharmacy for research that used prescription drug claims to determine differences in medication payment and utilization between pharmacy delivery channels.

Mike has a PhD in Pharmacy Administration from the University of Texas at Austin and an MS and BS in Pharmacy from the University of Iowa.  He is a registered pharmacist.

Tiernan Meyer

Senior Manager


Tiernan Meyer, Senior Manager, supports Avalere clients in analytic and strategic engagements focused on Medicaid, state health policy trends, and the impact of federal health reform. Tiernan leads Avalere’s Medicaid policy tracking—including states’ decisions around expanding Medicaid under the Affordable Care Act—and our analysis of trends and enrollment in Medicaid managed care.  She follows Medicaid trends with a particular focus on pharmaceuticals and state cost containment, and has expertise in private exchanges and benefit design trends.

Prior to joining Avalere, Tiernan worked as a health educator at the Delta Area Health Education Center in Helena, AR. Additionally, she analyzed the Chilean public healthcare system while studying in Concepción, Chile.

Tiernan has a BA in neuroscience from Middlebury College.

Allison Petrilla

Vice President


Allison Petrilla, Vice President, works closely with life sciences clients to design observational research studies, health economic evaluations, and market landscape assessments. Allison has particular expertise in retrospective database analysis in both U.S. and ex-U.S. markets and her work has been published across a wide range of therapeutic areas.

Prior to joining Avalere, Allison was a director of HEOR at IMS Health focusing on retrospective study design and economic modeling for life sciences clients, and she was previously a health services researcher for the National Hospice and Palliative Care Organization and an HEOR consultant with ValueMedics Research.

She received an MPH, with a concentration in health information systems, from the George Washington University School of Public Health & Health Services, in Washington, DC.

Christine Liow

Senior Manager


Christine Liow, Senior Manager, advises clients on key developments in comparative effectiveness research, the impacts of health technology assessments and other evidentiary requirements on patient, provider, and payer needs, and strategies for external public and private engagement. She also has expertise in patient-centered outcomes research and patient-centered care.

Prior to joining Avalere, Christine served as a Research and Policy intern in the Centers for Disease Control and Prevention’s Office of Public Health Preparedness and Response and as a Healthcare Analytic Consultant intern at Thomson Reuters.

Christine has an MPH in Health Policy and Management from Emory University and a BS in Biology from The College of William and Mary.

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