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Michael Hiroshi Johnson, M.D.

Photo of Dr. Michael Hiroshi Johnson, M.D.
4.8 out of 5
155 Ratings
  • Associate Program Director Urologic Oncology Fellowship
  • Assistant Professor of Urology


Bladder Cancer, Kidney Cancer, Prostate Cancer, Urology

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The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 410-955-6100
1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-614-9156 | Fax: 410-955-0833

Johns Hopkins Outpatient Center

Appointment Phone: 410-955-6100
601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 410-614-9156 | Fax: 410-955-0833

Johns Hopkins Bayview Medical Center

Appointment Phone: 410-955-6100
4940 Eastern Avenue
Baltimore, MD 21224 map
Phone: 410-614-9156 | Fax: 410-955-0833

Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-955-6100
10803 Falls Road
Pavilion III, Suite 3300
Lutherville, MD 21093 map
Phone: 410-616-7600


Dr. Johnson is a board-certified Assistant Professor of Urology and Oncology.  He was recruited to the faculty after completing his urologic oncology fellowship at Johns Hopkins.  Prior to Hopkins, Dr. Johnson received his undergraduate degree from Dartmouth College, his medical degree from the University of Washington, and completed his residency at Washington University in St. Louis.

As a fellowship-trained urologic oncologist, Dr. Johnson has received advanced training in treating prostate, kidney, and bladder cancers.  He treats these diseases with both open and minimally-invasive/robotic approaches.   This includes radical prostatectomy, radical/partial nephrectomy, and radical cystectomy. 

 Utilizing the latest technologies and surgical techniques, Dr. Johnson creates treatment plans that emphasize a lasting cure and speedy recovery. He believes that the keys to exceptional patient care are a prompt evaluation and excellent communication.  His goal is to provide the best possible care, working with referring physicians to ensure patients transition back home in a seamless manner.

 Dr. Johnson’s research laboratory focuses on using genomic and computational tools for personalized, preventive, and predictive  cancer care.  Having received training in computational biology and Systems Biology, he is funded by the National Institutes of Health to advance “Big Data” efforts for precision medicine in kidney cancer using personalized tumor sequencing.  He holds additional grant funding in bladder cancer immunotherapy and prostate cancer research.

Dr. Johnson has received numerous awards, for his teaching and research efforts. He has authored many scientific publications, including research articles, videos of surgical techniques, and textbook chapters.

Dr. Johnson welcomes patient inquiries and referrals.  Contacting him directly by phone (410-614-9156) will allow him to collect the necessary records, prior to a clinic appointment. more


  • Associate Program Director Urologic Oncology Fellowship
  • Director, International Urology
  • Assistant Professor of Urology

Departments / Divisions

Centers & Institutes



  • MD, University Of Washington School Of Medicine (2009)


  • Barnes-Jewish Hospital / Urology (2014)


  • Johns Hopkins University School of Medicine / Urologic Oncology (2016)

Board Certifications

  • American Board of Urology / Urology (2018)

Patient Ratings & Comments

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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