John Ross Clark MD

Instructor, Medicine, Massachusetts General Hospital, Harvard Medical School

55 Fruit StreetYaw 7b Mass General HospitalBoston, MA 02114
Phone+1 617-724-4000
Fax+1 617-643-1915

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Education & Training

Mass General Brigham/Brigham and Women's HospitalResidency, Internal Medicine, 1982
WashU MedicineClass of 1979

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Certifications & Licensure

MA State Medical License 1982 - 2025
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Medical Oncology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 2 Certification OpTime Surgical 2014 Certified Module, Epic Systems Corporation, 2012, 2014, 2016-2017
CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2012, 2014, 2016-2017
CMS Meaningful Use Stage 2 Certification OpTime Surgical 2014 Certified Module, Epic Systems Corporation, 2012, 2014, 2016-2017

Clinical Trials

Gefitinib in Treating Patients With Locally Advanced or Metastatic Thyroid Cancer That Did Not Respond to Iodine Therapy Start of enrollment: 2003 Mar 01
Completed
Phase 2

Publications & Presentations

PubMed

8 citations
Successful rechallenge with pembrolizumab after case of progressive immunotherapy-related mucocutaneous eruption (PIRME), a Stevens-Johnson syndrome-like reaction.
Connie R Shi, Michael Shaughnessy, Kartik Sehgal, John R Clark, Kerry L Reynolds
International Journal of Dermatology. 2023-10-01
70 citations
Cell-free human papillomavirus DNA kinetics after surgery for human papillomavirus-associated oropharyngeal cancer.
Connor J O'Boyle, Giulia Siravegna, Shohreh Varmeh, Natalia Queenan, Alexa Michel
Cancer. 2022-06-01
21 citations
The efficacy and safety of cardio-protective therapy in patients with 5-FU (Fluorouracil)-associated coronary vasospasm.
Amna Zafar, Zsofia D Drobni, Matthew Lei, Carlos A Gongora, Thiago Quinaglia
Plos One. 2022-01-01