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Peter V. Johnston

Peter V. Johnston, MD

Interventional CardiologyCardiology

Accepting New Patients
Online Booking

Highlights

Age Groups Seen

  • Infant 0-2
  • Child 3-12
  • Adolescent 13-17
  • Young Adult 18-25
  • Adult 26-64
  • Older Adult 65+

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Peter V. Johnston

Professional Titles

  • Medical Director, Cardiac Catheterization Laboratory, Johns Hopkins Howard County Medical Center

Primary Academic Title

Associate Professor of Clinical Medicine

Johns Hopkins Physician

Logo for Johns Hopkins Physician

Background

Dr. Johnston joined the Cardiology Faculty in 2008 and currently practices Interventional Cardiology at Johns Hopkins Hospital, Bayview Medical Center, and Johns Hopkins Howard County Medical Center. His primary research interest is in novel therapies for heart failure and he is involved in both clinical trials and pre-clinical studies currently underway at Johns Hopkins.

Centers and Institutes

Heart and Vascular Institute

Clinical Trial Keywords

Cell therapy; Gene therapy; Interventional Cardiology

Find a Clinical Trial

View all trials by this principal investigator.

Research Interests

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

Lab Website

Johnston-Hwang Lab

  • Development and optimization of stem cell and regenerative therapies for heart failure and myocardial infarction. CardiAMP Heart Failure Trial, Implantable Bioreactor for Prevention of Adverse Remodeling after Myocardial Infarction

Selected Publications

  • Johnston PV, Duckers HJ, Raval AN, Cook TD, Pepine CJ.  Not all stem cells are created equal: the case for prospective assessment of stem cell potency in the CardiAMP heart failure trial. Circ Res 2018;123:944-6

  • Johnston PV, Hwang CW, Bogdan V, Mills KJ, Eggan ER, Leszczynska A, Wu KC, Herzka DA, Brinker JA, Schulman SP, Banerjee M, Florea V, Natsumeda M, Tompkins B, Balkan W, Hare JM, Tomaselli GF, Weiss RG, Gerstenblith G. Intravascular stem cell bioreactor for prevention of adverse remodeling after myocardial infarction. J Am Heart Assoc, 2019;8:e012351

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

  • Hung G, Ashvetiya T, Leszczynska A, Yang W, Hwang CW, Gerstenblith G, Barth AS, Johnston PV. Paracrine-mediated rejuvenation of aged mesenchymal stem cells is associated with downregulation of the autophagy-lysosomal pathway. NPJ Aging 2022 Jul 18; 8(10)

  • Makkar R, Smith RR, Cheng K, Malliaras K, Thomson LE, Berman D, Czer LS, Marbán L, Mendizabal A, Johnston PV, Russell SD, Schuleri KH, Lardo AC, Gerstenblith G, Marbán E. Intracoronary cardiosphere-derived cells for heart regeneration after myocardial infarction (CADUCEUS): a prospective, randomised phase 1 trial. Lancet. 2012;379(9819):895-904

Patents

  • Methods for Promoting Healing of Tissue, U.S. Patent #10,772,716, 9/15/20
  • Cell impregnated sleeve for paracrine and other factor production, U.S. Patent #10,561,830, 2/18/20
  • Cell impregnated sleeve for paracrine and other factor production, Patent #10,987,501, 4/27/21
  • A Device and Method for Non-Invasive Left Ventricular End Diastolic Pressure (LVEDP) Measurement., U.S. Patent #10,729,337, 8/4/20

Honors

  • Innovations in Clinical Care, 2021 Johns Hopkins Medicine Clinical Awards
  • Abstract Travel Award, American Heart Association Scientific Sessions 2006, American Heart Association Council on Basic Cardiovascular Sciences, 1/1/06
  • Stanley L. Blumenthal, MD Cardiology Research Award, Johns Hopkins University School of Medicine., 1/1/06
  • Most Aequanimitas Intern., Osler Medical Housestaff, Johns Hopkins Hospital., 1/1/01

Memberships

  • American College of Cardiology,

    FACC

  • American Heart Association,

    FAHA

Locations

  1. Johns Hopkins Bayview Medical Center
  2. Greater Baltimore Medical Center
    • 6569 North Charles Street, Pavilion West STE 600, Baltimore, MD 21204
    • Get Directions

Expertise

Education

  • Fellowship: Johns Hopkins University School of Medicine, Interventional Cardiology, 2008
  • Fellowship: Johns Hopkins University School of Medicine, Cardiology, 2007
  • Residency: Johns Hopkins University School of Medicine, Cardiology, 2003
  • Medical Education: University of Michigan Medical School, MD, 2000

Board Certifications

  • Interventional Cardiology: American Board of Internal Medicine, 2008
  • Cardiovascular Disease: American Board of Internal Medicine, 2007

Insurance

Please contact the location directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

5 out of 5

70 ratings, 29 reviews

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.

Overall Rating by Patient
Provider Listened Carefully
Provider Explained Things Clearly
Provider Knew Medical History
Provider Showed Respect
Provider Spent Enough Time
Search reviews
    5 out of 5 stars
    Reviewed on 3/23/2026

    Dr Peter Johnston has been my cardiologist for almost ten yrs. Thanks to him , I'm here to continue to see him .

    5 out of 5 stars
    Reviewed on 3/2/2026

    Dr. Johnston is great

    5 out of 5 stars
    Reviewed on 2/16/2026

    Dr. Johnston is a great listener. He is very caring about my treatment plan. Never in a hurry.

    5 out of 5 stars
    Reviewed on 2/16/2026

    Excellent visit

    5 out of 5 stars
    Reviewed on 2/9/2026

    Excellent doctor

    5 out of 5 stars
    Reviewed on 1/29/2026

    Dr. Johnston is the best provider I have have had. He is extremely knowledgeable and super friendly for such a high end provider

    5 out of 5 stars
    Reviewed on 1/29/2026

    I have complete faith in Dr. Johnston and his team. He placed my stent when I had my heart attack on 1/2/2014.

    5 out of 5 stars
    Reviewed on 1/22/2026

    Doctor Johnston is the BEST !!!

    5 out of 5 stars
    Reviewed on 1/12/2026

    Two thumbs up

    5 out of 5 stars
    Reviewed on 1/12/2026

    I love and trust Dr. Johnston.

    5 out of 5 stars
    Reviewed on 12/15/2025

    Dr. Johnston was kind and considerate in my post procedure appointment. My daughter accompanied me for my appointment. I am grateful that Dr. Johnston appreciated her questions and answered them clearly and directly to her.

    5 out of 5 stars
    Reviewed on 12/8/2025

    Excellent first visit.

    5 out of 5 stars
    Reviewed on 11/24/2025

    Dr. Peter Johnston was very caring, considerate and professional. I could not have asked for more caring doctor.

    5 out of 5 stars
    Reviewed on 11/17/2025

    Dr Johnston's cheerful and buoyant persona is refreshing and healing. He is a gem.

    5 out of 5 stars
    Reviewed on 11/3/2025

    Doctor Johnston is great feel very lucky we found him . Feel very good that he is my heart doctor .

    5 out of 5 stars
    Reviewed on 10/27/2025

    Love the entire team. Always pleasant and professional

    5 out of 5 stars
    Reviewed on 10/20/2025

    Dr. Johnston is knowledgeable and exceptionally competent .

    5 out of 5 stars
    Reviewed on 9/29/2025

    Dr Johnston coordinated with my PCP and then ordered blood work for both of them. When the results came back, he called and coordinated a repeat of a faulty lab result to be done at Johns Hopkins. He showed great concern for my health.

    5 out of 5 stars
    Reviewed on 8/25/2025

    I specifically drive 3 hrs to see Dr Johnston . He Is vey knowledgeable, answers all my questions, listens to my concerns, and has the most calming demeanor. He basically saved my life with a double bypass .. I highly recommend him to everyone.

    5 out of 5 stars
    Reviewed on 8/25/2025

    No one called about the blood work bcoz he ordered it at this visit. He is a wonderful, kind & caring doctor. Always smiling and very courteous & patient with me, looks you in the eyes as he talks with you. Any questions I have he makes sure I understand the answer.

    5 out of 5 stars
    Reviewed on 7/14/2025

    Excellent

    5 out of 5 stars
    Reviewed on 7/14/2025

    Dr. Johnston saved my life 11 years ago. I could not have a better cardiologist. He always listens and provides excellent care and advice.

    5 out of 5 stars
    Reviewed on 6/2/2025

    Dr Johnston listens to me and answers my questions. He gives me his undivided attention. I appreciate this very much.

    5 out of 5 stars
    Reviewed on 5/12/2025

    Grateful. Thanks

    5 out of 5 stars
    Reviewed on 5/12/2025

    Best of the Best

    5 out of 5 stars
    Reviewed on 5/12/2025

    The provider was professional and helpful

    5 out of 5 stars
    Reviewed on 5/5/2025

    He's patient caring calm and unlike 99% of doctors, Dr Johnston takes alot of time and care with me. As much time as I need to answer my questions.

    5 out of 5 stars
    Reviewed on 5/5/2025

    Dr. Johnston is phenomenal.

    5 out of 5 stars
    Reviewed on 4/29/2025

    Very thoughtful and thorough.