Portrait of John de Groot
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John de Groot, MD

He | Him | HisNeuro-Oncology • Neurology
Neuro-Oncology Parnassus
415-353-7500
Portrait of John de Groot
Portrait of John de Groot
ucsf logo

John de Groot, MD

He | Him | HisNeuro-Oncology • Neurology
Neuro-Oncology Parnassus
415-353-7500

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About me

Dr. John de Groot is a neuro-oncologist who specializes in diagnosing and managing the care of patients with primary brain and spine tumors (those at the site where disease began, as compared with tumors that result from the disease spreading).

De Groot has brought new therapies from the laboratory into the clinic to treat patients with brain cancer. In particular, he has contributed to the development of glioblastoma treatments. He has a special interest in using blood analyses, imaging studies and other indirect biomarkers (measurable elements that may indicate disease) to evaluate the efficacy of novel therapies. In one study, he is looking at ways to overcome physiological limitations in drug delivery to brain tumors, such as through focused ultrasound. He regularly advises and collaborates with other researchers on promising therapies under development.

De Groot earned his medical degree from the University of Texas Medical Branch at Galveston. He completed a residency in neurology at Johns Hopkins University and a fellowship in neuro-oncology at the University of Texas MD Anderson Cancer Center.

Education & training

Board certification

  • Neurology, American Board of Psychiatry and Neurology

Fellowship

  • Neuro-Oncology, Univ of Texas MD Anderson Cancer Center

Residency

  • Neurology, Johns Hopkins University School of Medicine - GME

Internship

  • Internal Medicine, Johns Hopkins Bayview Medical Center - GME

Degree

  • MD, University of Texas Medical Branch at Galveston

My expertise

Locations

    Reviews

    Average rating

    4.8
    4.8 out of 5 Stars
    127 ratings
    About provider reviews

    Showing 1-6 of 17 reviews

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    • 5 out of 5 Stars
      January 12, 2026

      Dr. De Groot has been extremely approachable and responsive in addressing my concerns

    • 5 out of 5 Stars
      December 3, 2025

      The doctors, nurses, staff and everyone at UCSF is amazing.

    • 5 out of 5 Stars
      December 2, 2025

      I would definitely recommend UCSF & their wonderful doctors to everyone I know & their specialties above & beyond, good work.

    • 5 out of 5 Stars
      October 29, 2025

      Dr. De Groot & Lee were very attentive. De Groot went out of his way to discuss my case & wants to do more research!

    • 4.1 out of 5 Stars
      September 23, 2025

      Overall good experience.

    • 5 out of 5 Stars
      July 23, 2025

      Dr. De Groot is the best! So thankful he is apart of my care team.

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