PFPaul A. Fishman

Paul A. Fishman

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

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Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


Paul A. Fishman has a total of 79 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Oral health 4 life: Design and methods of a semi-pragmatic randomized trial to promote oral health care and smoking abstinence among tobacco quitline callers

    by Jennifer B. McClure, Paula R. Blasi, Andrea Cook, Terry Bush, Paul Fishman, Jennifer Nelson, Melissa L. Anderson, Sheryl L. Catz


  • Association of Controlled and Uncontrolled Hypertension With Workplace Productivity

    by Victoria Unmuessig, Paul A. Fishman, Hubertus J.M. Vrijhoef, Arianne M.J. Elissen, David C. Grossman

    The authors estimated the lost productive time (LPT) due to absenteeism and presenteeism among employees at the Group Health Cooperative with controlled and uncontrolled hypertension compared with normotensive patients. The patients responded to a survey inquiring about health behaviors with links to their medical record to identify diagnoses, blood pressure measurement, and prescription drug dispenses. Individuals with controlled hypertension were more likely to report any LPT relative to individuals with uncontrolled hypertension (40.6% vs 32.6%, P<.05). There were no significant differences in the average hours of LPT due to presenteeism among individuals regardless of their hypertension status but individuals with hypertension were more likely to report hours of LPT due to absenteeism compared with normotensive individuals (1.04 vs 0.59 hours; P=.001). Individuals with uncontrolled hypertension were more likely to report LPT due to absenteeism compared with individuals with controlled hypertension (1.35 vs 0.72 hours; P=.001). There were no significant differences between individuals with hypertension whose blood pressure was controlled and normotensive individuals with respect to the likelihood of reporting any LPT or in the amounts of absenteeism and presenteeism.


  • Open Access

    Relationship between cardiovascular risk and lipid testing in one health care system: a retrospective cohort study

    by Robert J. Reid, Melissa L. Anderson, Paul A. Fishman, Jennifer B. McClure, Ron L. Johnson, Sheryl L. Catz, Beverly B. Green

    The US Preventive Services Taskforce (USPSTF) recommends routine lipid screening beginning age 35 for men [1]. For women age 20 and older, as well as men age 20–34, screening is recommended if cardiovascular risk factors are present. Prior research has focused on underutilization but not overuse of lipid testing. The objective is to document over- and under-use of lipid testing in an insured population of persons at low, moderate and high cardiovascular disease (CVD) risk for persons not already on statins. The study is a retrospective cohort study that included all adults without prior CVD who were continuously enrolled in a large integrated healthcare system from 2005 to 2010. Measures included lipid test frequency extracted from administrative data and Framingham cardiovascular risk equations applied using electronic medical record data. Five year lipid testing patterns were examined by age, sex and CVD risk. Generalized linear models were used to estimate the relative risk for over testing associated with patient characteristics. Among males and females for whom testing is not recommended, 35.8 % and 61.5 % received at least one lipid test in the prior 5 years and 8.4 % and 24.4 % had two or more. Over-testing was associated with age, race, comorbidity, primary care use and neighborhood income. Among individuals at moderate and high-risk (not already treated with statins) and for whom screening is recommended, between 21.4 % and 25.1 % of individuals received no screening in the prior 5 years. Based on USPSTF lipid screening recommendations, this study documents substantial over-testing among individuals with low CVD risk and under-testing among individuals with moderate to high-risk not already on statins. Opportunity exists to better focus lipid screening efforts appropriate to CVD risk.


  • Distinguishing Screening From Diagnostic Mammograms Using Medicare Claims Data

    by Joshua J. Fenton, Weiwei Zhu, Steven Ma Balch, Rebecca Smith-Bindman, Paul Fishman, Rebecca A. Hubbard

    Background: Medicare claims data may be a fruitful data source for research or quality measurement in mammography. However, it is uncertain whether claims data can accurately distinguish screening from diagnostic mammograms, particularly when claims are not linked with cancer registry data. Objectives: To validate claims-based algorithms that can identify screening mammograms with high positive predictive value (PPV) in claims data with and without cancer registry linkage. Research Design: Development of claims-derived algorithms using classification and regression tree analyses within a random half-sample of bilateral mammogram claims with validation in the remaining half-sample. Subjects: Female fee-for-service Medicare enrollees aged 66 years and older, who underwent bilateral mammography from 1999 to 2005 within Breast Cancer Surveillance Consortium (BCSC) registries in 4 states (CA, NC, NH, and VT), enabling linkage of claims and BCSC mammography data (N=383,730 mammograms obtained from 146,346 women). Measures: Sensitivity, specificity, and PPV of algorithmic designation of a “screening” purpose of the mammogram using a BCSC-derived reference standard. Results: In claims data without cancer registry linkage, a 3-step claims–derived algorithm identified screening mammograms with 97.1% sensitivity, 69.4% specificity, and a PPV of 94.9%. In claims that are linked to cancer registry data, a similar 3-step algorithm had higher sensitivity (99.7%), similar specificity (62.7%), and higher PPV (97.4%). Conclusions: Simple algorithms can identify Medicare claims for screening mammography with high predictive values in Medicare claims alone and in claims linked with cancer registry data.


    • 1 September 2013
      • Vol. 19  (9) , 709-16

    Improving BP control through electronic communications: an economic evaluation.

    by Paul A Fishman, Andrea J Cook, Melissa L Anderson, James D Ralston, Sheryl L Catz, David Carrell, James Carlson, Beverly B Green

    Web-based collaborative approaches to managing chronic illness show promise for both improving health outcomes and increasing the efficiency of the healthcare system. Analyze the cost-effectiveness of the Electronic Communications and Home Blood Pressure Monitoring to Improve Blood Pressure Control (e-BP) study, a randomized controlled trial that used a patient-shared electronic medical record, home blood pressure (BP) monitoring, and web-based pharmacist care to improve BP control (<140/90 mm Hg). Incremental cost-effectiveness analysis conducted from a health plan perspective. Cost-effectiveness of home BP monitoring and web-based pharmacist care estimated for percent change in patients with controlled BP and cost per mm Hg in diastolic and systolic BP relative to usual care and home BP monitoring alone. A 1% improvement in number of patients with controlled BP using home BP monitoring and web-based pharmacist care-the e-BP program-costs $16.65 (95% confidence interval: 15.37- 17.94) relative to home BP monitoring and web training alone. Each mm HG reduction in systolic and diastolic BP achieved through the e-BP program costs $65.29 (59.91-70.67) relativeto home BP monitoring and web tools only. Life expectancy was increased at an incremental cost of $1850 (1635-2064) and $2220 (1745-2694) per year of life saved for men and women, respectively. Web-based collaborative care can be used to achieve BP control at a relatively low cost. Future research should examine the cost impact of potential long-term clinical improvements.


  • Use of Portable Ultrasound Machine for Outpatient Orthopedic Diagnosis: An Implementation Study

    by Sean Adelman, Paul Fishman

    Sean Adelman, MD; Paul Fishman, PhD Perm J 2013 Summer; 17(3):18-22 http://dx.doi.org/10.7812/TPP/12-128 Abstract Introduction: Ultrasonography and magnetic resonance imaging (MRI) are used to evaluate shoulder disorders. This implementation study investigated


  • The Challenge of Conducting Comparative Effectiveness Research in Cancer: The Impact of a Fragmented US Health-Care System

    by Paul A. Fishman, Mark C. Hornbrook, Debra P. Ritzwoller, M. C. O'Keeffe-Rosetti, Jennifer Elston Lafata, Ramzi G. Salloum

    Comparative effectiveness research (CER) can make important contributions to the transformation of US health care by filling gaps left by tightly controlled clinical trials. However, without comprehensive and comparable data that reflect the diversity of the US health-care system, CER’s value will be diminished. We document the limits of observational CER by examining the age at diagnosis, disease stage, and select measures of health-care use among individuals diagnosed with incident cancer aged 65 or older from four large health maintenance organizations (HMOs) relative to seniors identified through the linked Surveillance, Epidemiology, and End Results (SEER)–Medicare data for the period 1999–2007. Aged individuals in the HMOs were younger, diagnosed at earlier stages, and more likely to receive care in inpatient settings than individuals in the linked SEER–Medicare data. These differences highlight the need for comprehensive and comparable datasets that reflect the diversity of US health care to support CER that can inform health-care reform in the United States.


  • Open Access

    Adherence to surveillance care guidelines after breast and colorectal cancer treatment with curative intent

    by Ramzi G. Salloum, Mark C. Hornbrook, Paul A. Fishman, Debra P. Ritzwoller, Maureen C. O'KEeffe Rossetti, Jennifer Elston Lafata

    BACKGROUND: Evidence‐based guidelines recommend routine surveillance, including office visits and testing, to detect new and recurrent disease among survivors of breast and colorectal cancer. The extent to which surveillance practice is consistent with guideline recommendations or may vary by age is not known.METHODS: Cohorts of adult patients diagnosed with breast (n = 6205) and colorectal (n = 2297) cancer between 2000 and 2008 and treated with curative intent in 4 geographically diverse managed care environments were identified via tumor registries. Kaplan‐Meier estimates were used to describe time to initial and subsequent receipt of surveillance services. Cox proportional hazards models evaluated the relation between patient characteristics and receipt of metastatic screening.RESULTS: Within 18 months of treatment, 87.2% of breast cancer survivors received recommended mammograms, with significantly higher rates noted for patients aged 50 years to 65 years. Among survivors of colorectal cancer, only 55.0% received recommended colon examinations, with significantly lower rates for those aged ≥ 75 years. The majority of breast (64.7%) and colorectal (73.3%) cancer survivors received nonrecommended metastatic disease testing. In patients with breast cancer, factors associated with metastatic disease testing include white race (hazards ratio [HR], 1.13), comorbidities (HR, 1.17), and younger age (HR, 1.13; 1.15; 1.13 for age groups: <50, 50–64, and 65–74 respectively). In those with colorectal cancer, these factors included younger age (HR, 1.31; 1.25 for age groups: <50 and 50–64 respectively) and comorbidities (HR, 1.10).CONCLUSIONS: Among an insured population, wide variation regarding the use of surveillance care was found by age and relative to guideline recommendations. Breast cancer survivors were found to have high rates of both guideline‐recommended recurrence testing and non–guideline‐recommended metastatic testing. Only approximately 50% of colorectal cancer survivors received recommended tests but greater than 67% received metastatic testing. Cancer 2012. © 2012 American Cancer Society.


  • Open Access

    Impact on Seniors of the Patient-Centered Medical Home: Evidence From a Pilot Study

    by Paul A. Fishman, Eric A. Johnson, Kathryn Coleman, Eric B. Larson, Clarissa Hsu, Tyler R. Ross, David Liss, James Tufano, Robert J. Reid

    Purpose: To assess the impact on health care cost and quality among seniors of a patient-centered medical home (PCMH) pilot at Group Health Cooperative, an integrated health care system in Washington State. Design and Methods: A prospective before-and-after evaluation of the experience of seniors receiving primary care services at 1 pilot clinic compared with seniors enrolled at the remaining 19 primary care clinics owned and operated by Group Health. Analyses of secondary data on quality and cost were conducted for 1,947 seniors in the PCMH clinic and 39,396 seniors in the 19 control clinics. Patient experience with care was based on survey data collected from 487 seniors in the PCMH clinic and of 668 in 2 specific control clinics that were selected for their similarities in organization and patient composition to the pilot clinic.Results: After adjusting for baseline, seniors in the PCMH clinic reported higher ratings than controls on 3 of 7 patient experience scales. Seniors in the PCMH clinic had significantly greater quality outcomes over time, but this difference was not significant relative to control. PCMH patients used more e-mail, phone, and specialist visits but fewer emergency services and inpatient admissions for ambulatory care sensitive conditions. At 1 and 2 years, the PCMH and control clinics did not differ significantly in overall costs. Implications: A PCMH redesign can be associated with improvements in patient experience and quality without increasing overall cost.