Charles Locke, M.D.

Charles Frederick S Locke, M.D.

Headshot of Charles Locke
  • Associate Professor of Medicine

Languages: English, Spanish


Internal Medicine

Research Interests

Utilization/clinical resource management; Public health response to COVID-19 more

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Insurance Information

Main Phone

Outside of Maryland & Washington D.C.

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International Patients

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The Johns Hopkins Hospital

Appointment Phone: 410-502-2128
600 N. Wolfe Street
Nelson/Harvey Building, Suite 215
Baltimore, MD 21287
Phone: 443-287-4953
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Dr. Charles Locke is an associate professor of medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include internal medicine. SInce 2021, Dr. Locke has served as the COO, BCCFH COVID Task Force, a joint effort of Johns Hopkins Medicine, University of Maryland Medical System and the Maryland Department of Health.

Dr. Locke received his M.D. from the University of Pennsylvania. He completed his residency at the University of Virginia Health System. He joined the Johns Hopkins faculty in 1998.

His research interests include utilization/clinical resource management and public health response to the COVID-19 pandemic.

Dr. Locke has been recognized by the Institute for Excellence in Education and the Osler housestaff with several Teaching Awards. more


  • Associate Professor of Medicine

Departments / Divisions



  • MD; Hospital of the University of Pennsylvania (1993)


  • Internal Medicine; University of Virginia School of Medicine (1996)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (1996)

Research & Publications

Selected Publications

Locke CF, Hirsch RL, Hu EP, Hughes AH, Ficke JR. Potential Financial Effects on Hospitals of the Removal of Common Orthopaedic and Spinal Procedures From Medicare's “Inpatient-Only” List: A Comparison of the Medicare Fee-for-service Payment Model Versus Maryland's Global Budget Revenue Model. JAAOS-Journal of the American Academy of Orthopaedic Surgeons. 2021 Nov 25:10-5435

Locke CF, Hu EP, Hirsch RL, Hughes AH, Sheehy AM, Improving Healthcare Value: Medicare Reimbursement for Short Stay Inpatient vs. Outpatient Medical Hospitalizations, J Hosp. Med. 2022 Apr 30. doi: 10.1002/jhm.12823

Hughes AH, Horrocks D, Leung C, Richardson MB, Sheehy AM, Locke CF, The increasing impact of length of stay “outliers” on length of stay at an urban academic hospital. BMC health services research. 2021 Dec;21(1):1-7.

Sheehy AM, Engel JZ, Locke CFS, Weissburg DJ, Eldridge K, Caponi B, Deutschendorf A., Hospitalizations with observation services and the Medicare Part A complex appeals process at three academic medical centers. J. Hosp. Med.  2017 Apr;12(4):251-255

Activities & Honors


  • Osler House Staff Award, Part-time faculty, Johns Hopkins University Department of Medicine, 2013
  • Ambulatory Preceptor Residents Teaching Award, Johns Hopkins University School of Medicine, Department of Medicine, 2016
  • Osler House Staff Teaching Award, Part-time faculty, Johns Hopkins School of Medicine, Department of Medicine, 2018
  • Osler House Staff Teaching Award, Part-time faculty, Johns Hopkins University School of Medicine, Department of Medicine, 2021
  • Part-time Faculty Teaching Award, Institute for Excellence in Education (IEE), Johns Hopkins School of Medicine., 2021
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