Halcyon Research, Inc.


Statistical consulting in healthcare quality improvement

and fraud, waste and abuse

Dana Keller, Ph.D.

Dana Keller, Ph.D.

 Experience You Can Trust

​​​​Dana Keller, PhD, President of Halcyon Research, Inc.

With over fifteen years as an independent consultant, and a decade spent as Chief Statistician for a major healthcare research firm, Dr. Keller's expertise spans quality improvement and fraud, waste and abuse. A wide range of audiences have found that his presentation style and use of familiar examples can transform the most complex statistical issues into easily understood and usable information. This skill is especially important for depositions, direct and cross examinations, and written reports.


Dr. Keller has been Chief Statistician for the following contracts and tasks for CMS, the Department of Defense, and States (EQRO work):

   National Medicaid and CHIP Payment Error Rate Measurement Program (PERM) for five years, three complete cycles

   Annual TRICARE Quality and Safety Evaluations Management Report for Department of Defense for six years, including a training presented at the Colorado facility at the personal request of the Joint Chiefs of Staff

   Maryland, DC, Arizona, and/or USVI QIOs for 17 years

   New England, Mid-Atlantic, and/or Trans-Atlantic Renal Coalition ESRD Networks for 17 years

   WIC, ZPIC4 and MIC for fraud, waste, and abuse detection and prosecution in Medicare and Medicaid, with expert statistician witness testimony for Administrative Law Judge Hearings

   National Retiree Drug Subsidy Monitoring and Validation Project

   National Recovery Audit Contractor Validation Project

   National Better Quality Indicators Management Project

   National Measures Management Project and Triennial National Impact Assessment Reports

   State EQRO reports for over 20 States over a dozen years

   Texas HHSC-OIG trial preparation consultant for audits involving sampling and extrapolation

In addition, he has been:

   Publicly recognized by CMS on a national call with Medicare Advantage plans as “a national resource” for all research methodologies for MCO quality improvement projects, and announced that CMS would accept his decisions on related matters

   Committee Chair or Supervising Research Professor for over 100 accredited doctoral dissertations

   A charter appointment to Delaware’s Governor’s Panel of Evaluation Experts


Ph.D., Measurement, Statistics, & Evaluation, University of Delaware

M.A.,  Measurement, Statistics, & Evaluation, University of Delaware

B.A., Sociology, Tufts University


Author of ‘The Tao of Statistics: A Path to Understanding (With No Math)’ - SAGE Publications – now 2nd edition. Covers basic to complex statistics from a conceptual perspective for non-mathematicians. 

Author of ‘The Tao of Research: A Path to Validity’, with Mary Lou Casadevall-Keller, M.S. - SAGE Publications. Quantitative research and qualitative inquiry from the perspective of issues that interfere with outcome validity.

Various publications and national recognition, such as American Institutes for Research in Fundamental Problems in the Measurement of Instructional Processes: Estimating Reasonable Effect Sizes and Conceptualizing What is Important to Measure (2005), “The major comprehensive work in this field has been performed by Dana Keller.”