Stephen Martin Sozio, M.D.

Headshot of Stephen Martin Sozio
  • Nathans Faculty Leader, Colleges Advisory Program
  • Associate Professor of Medicine


Chronic Kidney Disease, Dialysis, Epidemiology, Nephrology more

Research Interests

Chronic kidney disease epidemiology; Risk factors for stroke and cognitive impairment in patients with kidney disease, with a special interest in arterial calcification and stiffness; Comparative effectiveness research in dialysis patients; Medical education more

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Johns Hopkins Bayview Medical Center

Appointment Phone: 410-955-0670
4940 Eastern Avenue
301 Building, Suite 3400
Baltimore, MD 21224
Phone: 410-550-2820 | Fax: 410-550-7950
Johns Hopkins Bayview Medical Center - Google Maps

The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-955-0670
1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287
The Johns Hopkins Hospital (Main Entrance) - Google Maps


Dr. Sozio is an Associate Professor of Medicine and Epidemiology at the Johns Hopkins University School of Medicine and Bloomberg School of Public Health. In addition to his training in internal medicine and nephrology, he has advanced training in epidemiology through the MHS program and medical education through the MEHP program. This affords him the opportunity to merge the worlds of clinical care, research, and education. 

He has been course director in the Genes to Society-Renal, Epidemiology, and Adult Learning courses, advisor and faculty leader in the Nathans College of the Colleges Advisory program, program developer in the Scholarly Concentrations Program, Nephrology Fellowship Program, TL1 Program, and IEE Small Grants Mentoring Committee, and leader in multiple areas locally, nationally, and internationally. He has taught in seven separate countries in these efforts. His teaching acumen has been recognized with multiple awards, including the Lisa J. Heiser Award for Junior Faculty Contribution in Education, W. Barry Wood Jr. Award for Excellence in Teaching, Johns Hopkins University Alumni Association Excellence in Teaching Award, Alumni Excellence Award in the MEHP Program, Professors’ Award for Excellence in Teaching, and American Society of Nephrology Distinguished Educator Award.

In addition to an active teaching and clinical portfolio, Dr. Sozio performs cutting-edge research. His research has been in two distinct but successful areas:

1) Clinical research related to chronic kidney disease and end stage renal disease;

2) Educational research in undergraduate and graduate medical education.

The Sozio lab pursues work related to stroke, cognitive impairment, manifestations of kidney disease, and systematic reviews on clinical topics, and collaborates on multiple projects with other key investigators. In particular, Dr. Sozio has been an active investigator in the Choices for Healthy Outcomes in Caring for ESRD (CHOICE) Study, Predictors of Arrhythmic and Cardiovascular Risk in End Stage Renal Disease (PACE) Study, Chronic Renal Insufficiency Cohort (CRIC) Study, and work funded through the Agency for Healthcare Research and Quality (AHRQ) and Johns Hopkins Evidence-Based Practice Center. In total, his works are referenced in multiple guidelines including those from NKF-KDOQI, KDIGO, AHA, and AUA.

Equally important to the Sozio lab is the ground-breaking educational research they pursue. Dr. Sozio performs studies at the UME and GME levels, investing in understanding learners’ mentorship, research, and transitional experiences. For example, Dr. Sozio and his group validated a scale to assess mentorship characteristics in the preclinical Johns Hopkins Scholarly Concentrations medical student program. Dr. Sozio subsequently published on the international collaboration of the Bezmialem University Scholarly Concentrations Program. His group also reported on the Johns Hopkins nephrology fellowship night float system, the first such in-house night float system in the country. His work therefore can be used by other programs both nationally and internationally, especially as they plan their own curriculum.

Finally, Dr. Sozio leads several efforts at the national level through the American Society of Nephrology. He leads the Best Practices Project, designed to understand characteristics of medical school and residency programs that are the highest achieving in recruiting trainees into nephrology. Working with Kurtis Pivert [director of ASN Data Analytics], Dr. Sozio leads the Data Sub-Committee of ASN. Dr. Sozio also leads the ASN Fellow Survey, which queries all fellows on their training programs, the perceptions of the field, and career aspirations. His work helps shape how training programs understand the nephrology workforce, and can be a catalyst for change. more


  • Nathans Faculty Leader, Colleges Advisory Program
  • Associate Director, Nephrology Fellowship Program
  • Associate Director, TL1 Predoctoral Clinical Research Training Program
  • Co-Director, Clinical Research Scholarly Concentration
  • Co-Director, Epidemiology Course
  • Chair, Institute for Excellence in Education Small Grants Mentoring Committee
  • Associate Professor of Medicine

Departments / Divisions



  • MD; Johns Hopkins University School of Medicine (2002)


  • Internal Medicine; Hospital of the University of Pennsylvania (2005)


  • Nephrology; Johns Hopkins University School of Medicine (2009)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (2005)
  • American Board of Internal Medicine (Nephrology) (2009)

Research & Publications

Research Summary

Selected Publications

View all on PubMed

Sozio SM, Armstrong PA, Coresh J, Jaar BG, Fink NE, Plantinga LC, Powe NR, Parekh RS. Cerebrovascular disease incidence, characteristics, and outcomes in patients initiating dialysis: The Choices for Healthy Outcomes in Caring for ESRD (CHOICE) Study. Am J Kidney Dis. 2009;54(3):468-477; PMCID: PMC2744381.

McAdams-DeMarco MA, Tan J, Salter ML, Gross A, Meoni LA, Jaar BG, Kao WH, Parekh RS, Segev DL, Sozio SM. Frailty and cognitive function in incident hemodialysis patients. Clin J Am Soc Nephrol. 2015;10(12):2181-2189; PMCID: PMC4670760.

Sozio SM, Chan KS, Beach MC. Development and validation of the Medical Student Scholar-Ideal Mentor Scale (MSS-IMS). BMC Med Educ. 2017;17(1):132; PMCID: PMC5549328.

Sozio SM, Pivert KA, Shah HH, Chakkera HA, Asmar AR, Varma MR, Morrow BD, Patel AB, Leight K, Parker MG. Increasing Medical Student Interest in Nephrology. Am J Nephrol. 2019:11:1-7.

DiBiase RM, Beach MC, Carrese JA, Haythornthwaite JA, Wheelan SJ, Atkinson MA, Geller G, Gebo KA, Greene JA, Sozio SM. A Medical Student Scholarly Concentrations Program: Scholarly Self-Efficacy and Impact on Future Research Activities. Medical Education Online. 2020;25(1):1786210.

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