Dana K. Keller, Ph.D.
Halcyon Research, Inc.
Fraud Expert Witness, Statistics Expert Witness
Healthcare audit, sampling, samples, extrapolation, RAT-STATS, UPIC, ZPIC, MIC, Medicare, Medicaid, commercial insurance, litigation support
Chosen by Texas HHSC-OIG, CMS, and the Joint Chiefs of Staff, I bring 25 years of experience explaining healthcare statistics in plain English to a wide range of audiences, as exemplified through my first book, The Tao of Statistics: A Path to Understanding (With No Math). Further, I have provided testimony for Western Integrity Center (WIC), Zone Program Integrity Contractor (ZPIC), Medicaid Integrity Contractor (MIC), and commercial health cases, individually exceeding $1,000,000.
As an accepted expert witness, I stand on the shoulders of the OIG and CMS for the techniques and approaches that I employ with healthcare claims. In so doing, I make few independent decisions and am less susceptible to Analytic Gap Test issues arising from Daubert challenges than statisticians who use less well endorsed procedures.
My approaches to healthcare claims sampling, extrapolation, and defense appealed to HHSC-OIG (Texas), in particular, when their Medicaid audit department decided to overha...
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