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Peter VanDoren Johnston, M.D.

Medical Director, Cardiac Catheterization Laboratory, Howard County General Hospital
Assistant Professor of Medicine


Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Medical Director, Cardiac Catheterization Laboratory, Howard County General Hospital
  • Assistant Professor of Medicine

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 443-997-0270

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-550-5966
Fax: 410-550-1183

Johns Hopkins Bayview Medical Center

Appointment Phone: 443-997-0270

4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-550-5966
Fax: 410-550-1183

The Johns Hopkins Hospital

600 N. Wolfe Street
Baltimore, MD 21287 map


Angioplasty, Cardiac Catheterization, Cardiology , Cardiovascular Disease, Cardiovascular Medicine, Coronary Artery Disease, Coronary Artery Stenting, Fractional Flow Reserve, Heart Attack, Heart Disease, Interventional Cardiology, Intravascular Ultrasound (IVUS), Myocardial Infarction, Stenting

Research Interests

Stem Cell Therapy for the Heart; Optimization of primary angioplasty for acute myocardial infarction


Dr. Johnston is a native of Baltimore who joined the Cardiology Faculty in 2008 and currently practices Interventional Cardiology at Johns Hopkins Hospital, Bayview Medical Center, and Howard County General Hospital. His primary research interest is in stem cell therapy for the heart, for which several clinical trials are currently underway at Johns Hopkins. more

    Additional Information

  • Education +


    • University of Michigan Medical School / MD (2000)


    • Johns Hopkins University School of Medicine / Cardiology (2003)


    • Johns Hopkins University School of Medicine / Cardiology (2007)
    • Johns Hopkins University School of Medicine / Interventional Cardiology (2008)


    • American Board of Internal Medicine / Cardiovascular Disease (2007)
    • American Board of Internal Medicine / Interventional Cardiology (2008)
  • Research & Publications +

    Selected Publications

    1. Nam M, Johnston P, Lal B, Indurti R, Wilson MA, Laterra J. Endothelial cell-based cytokine gene delivery inhibits 9L glioma growth in vivo. Brain Res. 1996; 731(1-2):161-70.

    2. Johnston P, Nam M, Hossain MA, Indurti RR, Mankowski JL, Wilson MA, Laterra J. Delivery of human fibroblast growth factor-1 gene to brain by modified rat brain endothelial cells. J Neurochem. 1996; 67(4):1543-52.

    3. Laterra J, Nam M, Rosen E, Rao JS, Lamszus K, Goldberg ID, Johnston P. Scatter factor/hepatocyte growth factor gene transfer enhances glioma growth and angiogenesis in vivo. Lab Invest. 1997; 76(4):565-77.

    4. Laterra J, Rosen E, Nam M. Ranganathan S, Fielding K, Johnston P. Scatter factor/hepatocyte growth factor expression enhances human glioblastoma tumorigenicity and growth. Biochem Biophys Res Comm. 1997; 235(3):743-7.

    5. Fischbach PS, Johnston PV, Friedrichs GS, Lucchesi BR. Tedisamil in a chronic canine model of atrial flutter. J Cardiovasc Pharm. 1999; 34(2):212-8.

    6. Conrad KF, Johnston PV, Crossman C, Kempenaers B, Robertson RJ, Wheelwright NT, Boag PT. High levels of extra-pair paternity in an isolated, low-density island population of tree swallows (Tachycineta bicolor). Molec Ecol. 2001; 10(5):1301-8.

    7. Johnston PV and Samaniego M. Magnesium and phosphate disorders. In: The Osler Handbook of Inpatient Medicine, A. Cheng and A. Zaas (eds). St. Louis, Mosby, 2003.

    8. Hirsch GA, Johnston PV, Conte JV Jr, Achuff SC. Mycotic aortocoronary saphenous vein graft aneurysm presenting with unstable angina pectoris. Annals Thorac Surg. 2004; 78(4):1456-8.

    9. Mudd JO, Borlaug BA, Johnston PV, Kral BG, Rouf R, Blumenthal RS, Kwiterovich PO. Beyond LDL cholesterol defining the role of LDL heterogeneity in coronary artery disease. JACC 2007; 50(18):1735-41.

    10. Huang Y, Johnston PV, Zhang B, Zakaria A, Chowdry T, Smith RR, Marbn E, Rabb H, Womer KL. Kidney-derived stromal cells modulate dendritic and T cell responses. J Am Soc Nephrol 2009; 20(4):685-6.

    11. Johnston PV, Sasano T, Mills K, Evers R, Lee ST, Smith RR, Lardo AC, Steenbergen C, Gerstenblith G, Lange R, Marban E. Engraftment, differentiation and functional benefits of autologous cardiosphere-derived cells in porcine ischemic cardiomyopathy. Circulation 2009; 120(12):1075-83.
  • Academic Affiliations & Courses +
  • Activities & Honors +


    • Most Aequanimitas Intern. , Osler Medical Housestaff, Johns Hopkins Hospital., 2001
    • Abstract Travel Award, American Heart Association Scientific Sessions 2006, American Heart Association Council on Basic Cardiovascular Sciences , 2006
    • Stanley L. Blumenthal, MD Cardiology Research Award , Johns Hopkins University School of Medicine., 2006


    • American College of Cardiology
    • American Heart Association
  • Videos & Media +
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