Allison Lipitz-Snyderman , PhD

Assistant Attending Outcomes Research Scientist

Allison Lipitz-Snyderman

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Johns Hopkins University

Dr. Allison Lipitz-Snyderman is a health services researcher in the Department of Epidemiology and Biostatistics at Memorial Sloan Kettering Cancer Center (MSK).  She is a member of the MSK Center for Health Policy and Outcomes.  Her research focuses on improving the quality, safety, and outcomes of cancer care and reducing unwarranted variation between providers.  She has methodological expertise in the analysis of large-scale datasets including Medicare claims, commercial claims, and cancer registry data.  Currently, she is leading studies to assess the extent of variation between hospitals in their cancer care delivery and outcomes using claims.  Dr. Lipitz-Snyderman is also involved in research efforts to develop and validate new cancer-related quality measures.

Previously, she led the initial development and testing of an oncology-specific screening tool to help identify potentially preventable harms due to medical care from patient medical records.  She is collaborating on follow-up studies to evaluate whether this screening tool can be adapted for use in claims for large-scale assessments of patient harm.  She also led a qualitative study focused on obtaining physicians’ perceptions of barriers to direct physician-to-physician communication about diagnostic delays. During her doctoral studies at the Johns Hopkins Bloomberg School of Public Health, she used Medicare claims to evaluate a multi-component initiative to reduce bloodstream infections, the Keystone Intensive Care Unit Project, along the outcomes of mortality and length of stay.  Her research has been supported by the National Cancer Institute, the National Institute for Healthcare Management Foundation, AARP/NQF/OptumLabs, and the United Hospital Fund, among others.


Selected peer-reviewed publications:

  1. Lipitz-Snyderman A, Steinwachs D, Needham DM, Colantuoni E, Morlock LL, Pronovost PJ. Impact of a statewide intensive care unit quality improvement initiative on hospital mortality and length of stay: retrospective comparative analysis. BMJ. 2011 Jan 28;342:d219. PMCID: 3031651.

  2. Lipitz-Snyderman A, Sima CS, Atoria CL, Elkin EB, Anderson C, Blinder V, Tsai CJ, Panageas KS, Bach PB. Physician-Driven Variation in Nonrecommended Services Among Older Adults Diagnosed With Cancer. JAMA Intern Med. 2016 Oct 1;176(10):1541-1548. PMCID: PMC5363077.

  3. Lipitz-Snyderman A, Korenstein D. Reducing Overuse-Is Patient Safety the Answer? [invited editorial] JAMA. 2017 Feb 28;317(8):810-811.

  4. Lipitz-Snyderman A, Pfister D, Classen DC, Killen AK, Atoria CL, Epstein A, Anderson C, Fortier E, & Weingart S. Preventable adverse events in cancer care: Measuring risk and harm across the continuum. Cancer. 2017 Dec 1;123(23):4728-4736. doi: 10.1002/cncr.30916.

  5. Lipitz-Snyderman A, Kale M, Robbins L, Pfister D, Fortier E, Pocus V, Chimonas S, Weingart SN. Peers without fears? Barriers to effective communication among primary care physicians and oncologists about diagnostic delays in cancer. BMJ quality & safety. 2017. doi: 10.1136/bmjqs-2016-006181. PubMed PMID: 28655713.

View a full listing of Allison Lipitz-Snyderman ’s journal articles.