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Bruce Allen Leff, M.D.

Photo of Dr. Bruce Allen Leff, M.D.
  • Director, The Center for Transformative Geriatric Research
  • Professor of Medicine


Geriatric Medicine, Polypharmacy, Primary Care of Older Adults

Research Interests

Home care and medical house calls; Multimorbidity; Development, evaluation, and dissemination of novel models of care for older adults, notably Hospital at Home, Guided care and geriatric "portfolio" models; Case-mix issues; Medical education more

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Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-0925
5200 Eastern Ave.
The Center for Transformative Geriatric Research, Mason F. Lord Building, Center Tower, Floor 7
Baltimore, MD 21224 map
Phone: 410-550-0925 | Fax: 410-550-8701


Dr. Bruce Leff is a professor of medicine at the Johns Hopkins University School of Medicine. He holds a joint appointment in the department of health policy and management in the Johns Hopkins Bloomberg School of Public Health

Dr. Leff is an internationally recognized leader and researcher in the development, evaluation and dissemination of novel models of care for older adults, including the Hospital at Home, Guided Care, geriatric service line models and medical house call practices. In addition, his research interests extend to issues related to multi-morbidity, performance measurement and case-mix issues. He has a strong interest in health policy issues, is a Health and Aging Policy Fellow of the American Political Science Association, and has served on multiple technical expert panels for the Centers for Medicare and Medicaid Services. 

An award-winning teacher and mentor, Dr. Leff is involved in directing the basic Medicine Clerkship in the School of Medicine. He currently serves as president of the American Academy of Home Care Physicians as well as a member of the Board of Regents of the American College of Physicians.

As medical director of Business Development and Strategic Alliances at the School of Medicine, Dr. Leff represents faculty, clinical staff and researchers at Johns Hopkins and serves as a liaison with the business development team. In this capacity he serves as an advisor to the team for any academic issues and considerations in the ongoing development of projects and products. 

Dr. Leff received his B.A. from the University of Pennsylvania in 1983 and his M.D. from New York University in 1987. After residency and fellowship training at Johns Hopkins, he served as a medical officer in the US Army in Seoul, Korea, before joining the faculty in the Department of Medicine in 1994. He serves on the scientific advisory board of Amedysis (AMED) and the clinical systems innovation community for the West Health Institute. more


  • Director, The Center for Transformative Geriatric Research
  • Director, Program in Geriatric Health Services Research
  • Co-Director, Johns Hopkins Home-Based Medicine
  • Co-director, Medicine Clerkship
  • Medical Director, Business Development and Strategic Alliances
  • Professor of Medicine

Departments / Divisions

Centers & Institutes



  • MD; Medicine, New York University School of Medicine (1987)


  • Johns Hopkins Bayview Medical Center / Internal Medicine (1991)


  • Johns Hopkins University School of Medicine / Geriatric Medicine and Gerontology (1992)

Board Certifications

  • American Board of Internal Medicine / Geriatric Medicine (1994)
  • American Board of Internal Medicine / Internal Medicine (1991)

Research & Publications

Selected Publications

Siu AL, Spragens LH, Inouye SK, Morrison RS, Leff B. The ironic business case for chronic care in the acute care setting. Health Aff (Millwood). 28:113-25, 2009.

Frick K, Burton L, Clark R, Mader S, Naughton B, Burl J, Greenough WB, Steinwachs D, Leff B. Substitutive Hospital at Home for older persons: effects on costs. Am J Manag Care. 15:49-56, 2009.

Burton LC, Skinner EA, Ushcer-Pines L, Lieberman R, Leff B, Clark B, Lemke K, Yu Q, Weiner JP. Health of Medicare Advantage plan enrollees at 1 year after Hurricane Katrina. Am J Manag Care. 15:13-22, 2009.

Leff B. Defining and disseminating the hospital at home model. Editorial in: CMAJ. 2009 180:156-7, 2009

Leff B, Burton L, Mader S, Naughton B, Burl J, Guido S, Greenough WB, Steinwachs D. Comparison of functional outcomes associated with hospital at home care and traditional acute hospital care. J Am Geriatr Soc. 2009;57(2):273-8.

Marsteller JA, Burton LC, Mader S, Naughton B, Burl J, Guido S, Greenough WB, Steinwachs D, Leff B. Health care provider evaluation of a substitutive model of hospital at home care. Medical Care, 47(9):979-85, 2009.

Leff B, Reider L, Frick K, Scharfstein D, Boyd C, Frey K, Karm L, Boult C. The early effects of Guided Care on multimorbid older patients use and cost of health services: a randomized controlled trial. Am J Man Care, 5(8):555-9, 2009.

Wolff JL, Meadow A, Boyd CM, Weiss CO, Leff B. Physician evaluation and management of Medicare home health patients. Medical Care, 47 (11):1147-55, 2009.

Boult C, Green AF, Boult LB, Pacala JT, Snyder C, Leff B. Successful models of chronic care for older adults with chronic conditions: evidence for the Institute of Medicines Retooling for an Aging America report. J Am Geriatr Soc, In press.

Cheng J, Montalto M, Leff B, Hospital at Home. Clinics in Geriatric Medicine. 2009;25(1):79-97.

Wolff J, Rand-Giovannetti, Boyd CM, Reider L, Palmer S, Scharfstein D, Marsteller J, Wegner S, Frey K, Leff B, Frick K, Boult C. Effects of guided care on family caregivers. The Gerontologist, 2010;50(4):459-70.

Wolff JL, Meadow A, Boyd CM, Weiss CO, Leff B. Physician evaluation and management of Medicare home health patients. Medical Care, 2009;47(11):1147-55.
Boyd CM, Reider L, Frey K, Scharfstein D, Leff B, Wolff J, Groves C, Karm L, Wegener S, Marsteller J, Boult C. The effects of guided care on the perceived quality of health care for multi-morbid older persons: 18 month outcomes from a cluster-randomized controlled trial. J Gen Int Med, 2010;25(3):235-42.

Marsteller JA, Hsu YJ, Reider L, Frey K, Wolff J, Boyd C, Leff B, Karm L, Scharfstein D, Boult C. Physician satisfaction with chronic care processes: a cluster-randomized trial of guided care. Ann Fam Med. 2010;8(4):308-15.

Boult C, Reider L, Leff B, Frick KD, Boyd CM, Wolff JL, Frey K, Karm L, Wegener ST, Mroz T, Scharfstein DO. The effect of Guided Care teams on the use of health services: results from a cluster-randomized controlled trial. Arch Int Med, 2011:171:460-6.

Sinha SK, Bessman ES, Flomenbaum N, Leff B. A systematic review and qualitative analysis to inform the development of a new emergency department-based geriatric case management model. Ann Emerg Med, 2011;57(6):672-82.

Boyd CM, Leff B, Wolff JL, Yu Q, Zhou J, Rand C, Weiss CO. Informing clinical practice guideline development and implementation: prevalence of coexisting conditions among adults with coronary heart disease. J Am Geriatr Soc. 2011 May;59(5):797-805. PMID: 21568950;

Szanton SL, Thorpe RJ, Boyd C, Tanner EK, Leff B, Agree E, Xue QL, Allen JK, Seplaki CL, Weiss CO, Guralnik JM, Gitlin LN. Community aging in place, advancing better living for elders: a bio-behavioral-environmental intervention to improve function and health-related quality of life in disabled older adults. J Am Geriatr Soc. 2011 Dec;59(12):2314-20.

Knight AM, Kravet SJ, Kiyatkin D, Leff B. The effect of computerized provider order entry on medical students' ability to write orders. Teach Learn Med. 2012 Jan;24(1):63-70.

Giovannetti E.R., Wolff J.L., Xue Q., Weiss C.O., Leff B., Boult C., Hughes T.,Boyd C.M. (2011) Difficulty Assisting with Health Care Tasks Among Caregivers of Multimorbid Older Adults. J Gen Intern Med. 2012 Jan;27(1):37-44. Epub 2011 Aug 27.

Weiss CO, Boyd CM, Wolff JL, Leff B. Prevalence of diabetes treatment effect modifiers: the external validity of trials to older adults. Aging Clinical and Experimental Research. 2012 24(4):370-76.

Leff B, Spragens LH, Morano B, Powell J, Bickert T, Bond C, DeGolia P, Malone M, Glew C, McCrystle, Allen K, Siu AL. Rapid reengineering of acute medical care for Medicare beneficiaries: The Medicare Innovations Collaborative. Health Aff (Millwood). 2012 Jun;31(6):1204-15.

Cryer L, Shannon S, VanAmsterdam M, Leff B. Hospital at Home in New Mexico saved 19 percent with equal or better outcomes compared to similar inpatients. Health Aff (Millwood). 2012 Jun;31(6):1237-43.

Fabbri LM, Boyd C, Boschetto P, Rabe KF, Buist AS, Yawn B, Leff B, Kent DM, Schünemann HJ; on behalf of the ATS/ERS Ad Hoc Committee on Integrating and Coordinating Efforts in COPD Guideline Development. How to Integrate Multiple Comorbidities in Guideline Development: Article 10 in Integrating and Coordinating Efforts in COPD Guideline Development. An Official ATS/ERS Workshop Report. Proc Am Thorac Soc. 2012 Dec;9(5):274-281.

Dattalo M, Giovannetti ER, Scharfstein D, Boult C, Wegener S, Wolff JL, Leff B, Frick KD, Reider L, Frey K, Noronha G, Boyd C. Who participates in chronic disease self-management (CDSM) programs? Differences between participants and nonparticipants in a population of multimorbid older adults. Med Care. 2012 Dec;50(12):1071-5.

Boult C, Leff B, Boyd CM, Wolff JL, Marsteller JA, Frick KD, Wegener S, Reider L, Frey K, Mroz TM, Karm L, Scharfstein DO. A matched-pair cluster-randomized trial of guided care for high-risk older patients. J Gen Intern Med. 2013 May;28(5):612-21.

Graham LE, Leff B, Arbaje AI. Risk of hospital readmission for older adults discharged on friday. J Am Geriatr Soc. 2013 Feb;61(2):300-1.

Dorsey ER, George BP, Leff B, Willis AW. The coming crisis: Obtaining care for the growing burden of neurodegenerative conditions. Neurology. 2013 Apr 24. [Epub ahead of print] PubMed

Marsteller JA, Hsu YJ, Wen M, Wolff J, Frick K, Reider L, Scharfstein D, Boyd C, Leff B, Schwartz L, Karm L, Boult C. Effects of Guided Care on Providers' Satisfaction with Care: A Three-Year Matched-Pair Cluster-Randomized Trial. Popul Health Manag. 2013 Oct;16(5):317-25.

DuGoff EH, Dy S, Giovannetti ER, Leff B, Boyd CM. Setting standards at the forefront of delivery system reform: aligning care coordination quality measures for multiple chronic conditions. J Healthc Qual. 2013 Sep-Oct;35(5):58-69.

(Mulhausen P*, Chun A*, Green A*, Hayward A*, Lee S*, Leff B*, McNabney M*, Sharma P*, Vitale C*). *Contributed equally to work. AGS Choosing Wisely Workgroup. American Geriatrics Society identifies five things that healthcare providers and patients should question. J Am Geriatr Soc. 2013 Apr;61(4):622-31.

Giovannetti ER, Dy S, Leff B, Weston C, Adams K, Valuck TB, Pittman AT, Blaum CS, McCann BA, Boyd CM. Performance measurement for people with multiple chronic conditions: conceptual model. Am J Manag Care. 2013 Oct 1;19(10):e359-66. PubMed

Wolff JL, Roter DL, Barron J, Boyd CM, Leff B, Finucane TE, Gallo JJ, Rabins PV, Roth DL, Gitlin LN. A Tool to Strengthen the Older Patient-Companion Partnership in Primary Care: Results from a Pilot Study. J Am Geriatr Soc. 2014 62(2):312-9.

Uhlig K, Leff B, Kent D, Dy S, Brunnhuber K, Burgers J, Greenfield S, Guyatt G, High K, Leipzig R, Mulrow C, Schmader K, Schunemann H, Walter L, Woodcock J, and Boyd CM. A framework for crafting clinical practice guidelines that are relevant to the care and management of people with multimorbidity, J Gen Intern Med. 2014 Jan 18. [Epub ahead of print]

Boyd CM, Wolff JL, Giovannetti E, Reider L, Weiss C, Xue QL, Leff B, Boult C, Hughes T, Rand C. Healthcare task difficulty among older adults with multimorbidity. Med Care. 2014 Mar;52 Suppl 3:S118-25.

Rickard J, Cheng A, Spragg D, Green A, Leff B, Tang W, Cantillon D, Baranowski B, Wilkoff BL, Tchou P. Survival in Octogenarians Undergoing Cardiac Resynchronization Therapy Compared to the General Population. Pacing Clin Electrophysiol. 2014 Jan 28.

Activities & Honors


  • 38th Parallel Medical Society, Seoul, Korea, 1992 - 1994
  • American Academy of Home Care Physicians, 2007
    Board of Directors
  • American Academy of Home Care Physicians, 1995
  • American Academy of Home Care Physicians, 2009 - 2012
  • American College of Physicians, 2009 - 2012
    Board of Governors
  • American College of Physicians, 1988
  • American Geriatrics Society, 1991
  • American Geriatrics Society Annual National Meeting, 2006
    Abstract reviewer, epidemiology section
  • American Geriatrics Society to the American College of Physicians Council of Subspecialty Societies, 2008
  • American Geriatrics Society, Clinical Practice & Models of Care Committee, 2008 - 2011
    Committee Member
  • American Geriatrics Society, Health Economics and Technology Committee, 2007 - 2008
    Committee member
  • American Geriatrics Society, Public Policy Committee, Care Coordination, 2008
    SWAT Team Member
  • Clerkship Directors in Internal Medicine, 2002
  • Clinical Template Project, 1997
  • Council of Subspecialty Societies, American College of Physicians, 2009 - 2012
    Vice Chairman
  • Curriculum committee, 1995 - 1996
  • Gerontological Society of America, 1996
  • InterRAI, 2007
    Associate Fellow
  • Society of General Internal Medicine, 1988 - 1992
  • American Academy of Home Care Physicians, 1995
  • American Academy of Home Care Physicians, 1995 - 1996

    Curriculum Committee

  • American Academy of Home Care Physicians, 1997 - 1998

    Clinical Template Project

  • American Academy of Home Care Physicians, 2011 - 2013


  • American College of Physicians, 2012 - 2014

    Chairman, Council of Subspecialty Societies

  • American College of Physicians, 2012

    Member, Board of Regents

  • American Geriatrics Society, 2012 - 2013

    "Choosing Wisely" Committee

  • American College of Physicians, 2013 - 2014

    Chair of Nominations Committee

Professional Activities

  • Chair, Nominations Committee, American College of Physicians, 2013
  • "Choosing Wisely" Committee,, American Geriatrics Society, 2012
  • Member, Board of Regents, American College of Physicians, 2012
  • Chairman, Council of Subspecialty Societies, American College of Physicians, 2012
  • President, American Academy of Home Care Physicians, 2011

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The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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