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Kristina Penniston, PhD

Surgical Services

Contact Dr. Penniston


(608) 265-9797

UW Medical Foundation Centennial Building
1685 Highland Ave
MADISON, WI 53705-2281

Kristina Penniston, PhD

Senior Scientist


  • PhD, University of Wisconsin-Madison, Madison, WI, 2004
  • Registered Dietitian (RD), post-baccalaureate internship completed at the University of Wisconsin Hospital and Clinics, Madison, WI, 1999
Professional Activities

In addition to her position as an Assistant Scientist at the UW Medical School, Dr. Penniston is a Clinical Nutritionist with UW Hospital and Clinics and provides medical nutrition therapy to patients with urologic diseases, such as kidney stones, prostate cancer, and other urinary tract conditions. Dr. Penniston has been the nutritionist for the UW Hospital Metabolic Stone Clinic since 1999. Additionally, Dr. Penniston:

  • is a preceptor for clinical nutrition interns at UW Hospital and Clinics (1999-present)
  • served as an invited expert reviewer for the American Dietetic Association “Nutrition Diagnosis Project” (2004-2005)
  • is a member of the American Society for Nutrition (2000-present)
  • is a member of the American Dietetic Association (1998-present)
  • is a member of the Research Dietetic Practice Group and the Oncology Practice Group of the American Dietetic Association (2003-present)
Honors and Awards
  • “First Author Paper Award,” American Dietetic Association Research Dietetic Practice Group (2005)
  • Preceptor award from dietetic interns of UW Hospital and Clinics Internship Program (2005 and 2004)
  • American Dietetic Association Foundation scholarship award (2003)
  • UW-Madison Department of Nutritional Sciences nominee for the Louis and Elsa Thomsen Wisconsin Distinguished Fellowship Award for graduate students in the College of Agriculture and Life Sciences (2003)

Research Interests

Dr. Penniston’s research interests include clinical nutrition research in kidney stones and prostate cancer. Specifically, she is interested in the efficacy of nutrition therapy in the prevention, management, and treatment of disease and on indicators of quality of life.

Recent Publications
  • Bell JR, Posielski NM, Penniston KL, Lubner MG, Nakada SY, Pickhardt PJ. Clinical Evaluation of Automated Computer Software Compared to Manual Measurements for Urinary Stone Metrics. J. Endourol. 2018 Feb 21.
    [PubMed ID: 29466878]
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  • Bell JR, Penniston KL, Best SL, Nakada SY. Prospective evaluation of flexible ureteroscopes with a novel evaluation tool. Can J Urol 2017 Oct; 24(5):9004-9010.
    [PubMed ID: 28971788]
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  • Penniston KL. Editorial Comment on: Vascular Disease and Kidney Stones: Abdominal Aortic Calcifications Are Associated with Low Urine pH and Hypocitraturia by Patel et al. J. Endourol. 2017 Sep; 31(9):962.
    [PubMed ID: 28817950]
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  • Bell JR, Penniston KL, Nakada SY. In Vitro Comparison of Stone Fragmentation When Using Various Settings with Modern Variable Pulse Holmium Lasers. J. Endourol. 2017 Oct; 31(10):1067-1072.
    [PubMed ID: 28728505]
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  • Lim AH, Streeper NM, Best SL, Penniston KL, Nakada SY. Clinical use of patient decision-making aids for stone patients. Can J Urol 2017 Aug; 24(4):8890-8894.
    [PubMed ID: 28832306]
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  • Bell JR, Penniston KL, Nakada SY. In Vitro Comparison of Holmium Lasers: Evidence for Shorter Fragmentation Time and Decreased Retropulsion Using a Modern Variable-pulse Laser. Urology 2017 Sep; 107():37-42.
    [PubMed ID: 28647563]
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  • Bell JR, Penniston KL, Best SL, Nakada SY. A survey of patient preferences regarding medical expulsive therapy following the SUSPEND trial. Can J Urol 2017 Jun; 24(3):8827-8831.
    [PubMed ID: 28646938]
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  • Penniston KL, Nakada SY. Use of the WISQOL Questionnaire. J. Endourol. 2017 04; 31(4):420.
    [PubMed ID: 28306328]
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  • Penniston KL, Patel SR, Schwahn DJ, Nakada SY. Studies using a porcine model: what insights into human calcium oxalate stone formation mechanisms has this model facilitated? Urolithiasis 2017 Feb; 45(1):109-125.
    [PubMed ID: 27904915]
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  • Penniston KL, Antonelli JA, Viprakasit DP, Averch TD, Sivalingam S, Sur RL, Pais VM, Chew BH, Bird VG, Nakada SY. Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire. J. Urol. 2017 May; 197(5):1280-1288.
    [PubMed ID: 27889419]
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