• John Schmelzer PhD, MA, MS

  • Assoc. Res Scientist-Economics

    • Research Admin
    • 1000 North Oak Avenue 1R4 Marshfield, WI 54449


PhD, Agricultural Economics, Michigan State University
MA, Economics, Michigan State University, The Eli Broad Graduate School of Management
MS, Agricultural Economics, The Ohio State University
BS, Agricultural Economics, The Ohio State University

Work Experience

2014 to Present:
Special Advisor/Consultant, Family Health Center of Marshfield, Inc., Marshfield, WI
2004 to Present:
Director, Office for Health Services Research, Associate Research Scientist, Marshfield Clinic Research Institute, Marshfield
2000 to 2004:
Director, Center for Health Services Research, Marshfield Clinic Research Institute, Marshfield
1989 to 2000:
Senior Researcher/Policy Analyst, Center for Health Services Research, Marshfield Clinic Research Institute, Marshfield
1987 to 1989:
Associate and Economic Analyst, Frank & Associates, Health & Management Consultants, Wauwatosa
1983 to 1987:
Economic Consultant, Washington, Washington
1981 to 1983:
Agricultural Economist and Policy Analyst, Agricultural Cooperative Service, US Department of Agriculture
1975 to 1977:
Research Specialist, Department of Agricultural Economics, University of Wisconsin-Madison, Madison

Select Publications

  • Marion BW, Mueller WF, Cotterill RW, Geithman FE, Schmelzer JR. The profit and price performance of leading food chains. American Journal of Agricultural Economics. 1979;61 :420-433.
  • Purschwitz MA, Lee BC, Schmelzer JR. Agricultural injury prevention: the need for greater cooperation and involvement. J Rural Health. 1990;6(3):221-230.
  • Kindig DA, Schmelzer JR, Hong W. Age distribution and turnover of physicians in nonmetropolitan counties of the United States. Health Serv Res. 1992 Oct;27(4):565-578.
    PubMed ID: 1399657
  • Schmelzer JR. Antitrust insights for rural providers from Marshfield Clinic's experience. Rural Health FYI. 1996;18(3)
  • Smith PN, Vidaillet HJ, Hayes JJ, Schmelzer JR. Radiofrequency ablation in the Medicare population. PACE. 1997;20 :1213.
  • Smith PN, Vidaillet HJ, Sharma PP, Hayes JJ, Schmelzer JR. Catheter ablation in the elderly in the United States: use in the Medicare population from 1991 to 1998. Pacing Clin Electrophysiol. 2001 Jan;24(1):66-69.
    PubMed ID: 11227972
  • Hillman MA, Wilke RA, Yale SH, Vidaillet HJ, Caldwell MD, Glurich IE, Berg RL, Schmelzer JR, Burmester JK. A prospective, randomized pilot trial of model-based warfarin dose initiation using CYP2C9 genotype and clinical data. Clin Med Res. 2005 Aug;3(3):137-145.
    PubMed ID: 16160068
  • Caldwell MD, Berg RL, Zhang KQi, Glurich IE, Schmelzer JR, Yale SH, Vidaillet HJ, Burmester JK. Evaluation of genetic factors for warfarin dose prediction. Clin Med Res. 2007 Mar;5(1):8-16.
    PubMed ID: 17456829
  • Caldwell MD, Awad T, Johnson JA, Gage BF, Falkowski M, Gardina P, Hubbard J, Turpaz Y, Langaee TY, Eby C, King C, Brower A, Schmelzer JR, Glurich IE, Vidaillet HJ, Yale SH, Zhang KQi, Berg RL, Burmester JK. CYP4F2 genetic variant alters required warfarin dose. BLOOD. 2008 Apr;111(8):4106-12.
    PubMed ID: 18250228
  • Schmelzer JR, Berg RL, Burmester JK, Yale SH, Caldwell MD. Is cost-effective genotype-informed warfarin dosing closer than we think? Ann Intern Med. 2009 Mar;[www.annals.org]
  • Yale SH, Schmelzer JR. Asthma Guidelines: The Product of Science and Politics. ANNALS OF FAMILY MEDICINE. 2009 Sep;
  • Burmester JK, Berg RL, Yale SH, Rottscheit CM, Glurich IE, Schmelzer JR, Caldwell MD. A randomized controlled trial of genotype-based Coumadin initiation. Genet Med. 2011 Jun;13(6):509-18.
    PubMed ID: 21423021
  • Godar DA, Kumar DR, Schmelzer KM, Talsness SR, Liang H, Schmelzer JR, Mazza JJ, Yale SH. The impact of serum glucose on clinical outcomes in patients hospitalized with community-acquired pneumonia. WMJ. 2011 Feb;110(1):14-20.
    PubMed ID: 21473508
  • Pawloski P, Hedblom B, Hitz P, Owens B, Anderson C, McCarty CA, Yale SH, Davis R, Hemmes M, Schmelzer JR. PS1-31: Assessing the Potential for Research on Genetics of Drug Induced Liver Injury in the HMORN Clinical Medicine & Research. 2011 Nov;9(3-4):180.
  • Hemmes M, Arterburn DE, Gerhard G, McCarty CA, Nakasato C, Pawloski P, Rukstalis M, Schmelzer JR, Yale SH, Davis R. PS1-18: A Feasibility Pilot to Determine the Practicality of Using the HMO Research Network to Research the Genetics of Drug-Induced Serious Adverse Events Clinical Medicine & Research. 2011 Nov;9(3-4):180-1.
  • Burmester JK, Berg RL, Glurich IE, Yale SH, Schmelzer JR, Caldwell MD. Absence of novel CYP4F2 and VKORC1 coding region DNA variants in patients requiring high warfarin doses. Clinical Medicine & Research. 2011 Nov;9(3-4):119-24.
    PubMed ID: 21562135
  • Kimmel SE, French B, Kasner SE, Johnson JA, Anderson JL, Gage BF, Rosenberg YD, Eby CS, Madigan RA, McBane RB, Abdel-Rahman SZ, Stevens SM, Yale S, Mohler ER, Fang MC, Shah V, Horenstein RB, Limdi NA, Muldowney JA, Gujral J, Delafontaine P, Desnick RJ, Ortel TL, Billett HH, Pendleton RC, Geller NL, Halperin JL, Goldhaber SZ, Caldwell MD, Califf RM, Ellenberg JH, Schmelzer, J, Mazza, JJ. A pharmacogenetic versus a clinical algorithm for warfarin dosing. N Engl J Med. 2013 Dec 12;369(24):2283-93.
    PubMed ID: 24251361
  • Burns ME, Dague L, DeLeire T, Dorsch M, Friedsam D, Leininger LJ, Palmucci G, Schmelzer J, Voskuil K. The effects of expanding public insurance to rural low-income childless adults. Health Serv Res. 2014 Dec;49 Suppl 2 :2173-87.
    PubMed ID: 25262774
  • Leonhard LG, Berg RL, Burmester JK, Mazza JJ, Schmelzer JR, Yale SH. Reinitiating Warfarin: Relationships Between Dose and Selected Patient, Clinical and Hospital Measures. Clinical Medicine & Research. 2015 Mar;13(1):1-6.
    PubMed ID: 24899695
  • Burmester JK, Berg RL, Schmelzer JR, Mazza JJ, Yale SH. Factors that affect rate of INR decline after warfarin discontinuation. WMJ. 2015 Feb;114(1):16-20.
    PubMed ID: 25845131
  • Fang MC, Fan D, Sung SH, Witt DM, Yale SH, Steinhubl SR, Go AS, Schmelzer, John. Outcomes in adults with acute pulmonary embolism who are discharged from emergency departments: the Cardiovascular Research Network Venous Thromboembolism study. JAMA Intern Med. 2015 Jun;175(6):1060-2.
    PubMed ID: 25894761
  • Bell LN, Berg RL, Schmelzer JR, Liang H, Mazza JJ, Kanth R, Bray CL, Zaldivar CB, Yale SH. Thromboembolic complications following a first isolated episode of superficial vein thrombosis: a cross-sectional retrospective study. J. Thromb. Thrombolysis. 2017 Jan;43(1):31-37.
    PubMed ID: 27565478