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Peter Anton Najjar, M.B.A., M.D.

Headshot of Peter Anton Najjar
  • Medical Director for Clinical Operations, Armstrong Institute for Patient Safety & Quality
  • Assistant Professor of Surgery


Abdominal Cancer, Colon and Rectal Surgery, Emergency General Surgery more

Research Interests

Patient Safety and Surgery Protocol; Enhanced Patient Recovery; Abdominal Cancer; Operating Room Cost and Emergency General Surgery more

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The Johns Hopkins Hospital

Appointment Phone: 443-997-1508
600 N. Wolfe Street
Baltimore, MD 21287 map

Johns Hopkins Outpatient Center

Appointment Phone: 443-997-1508
601 N. Caroline St.
Baltimore, MD 21287 map
Phone: 443-997-1508


Peter A. Najjar, M.D., M.B.A., is a board-certified surgeon with specialization in colon and rectal surgery. He earned his medical degree from the University of Chicago and completed his surgical residency and colorectal fellowship at Brigham and Women’s Hospital in Boston.

He offers advanced colorectal care including robotic and laparoscopic approaches for benign and malignant disease. In addition to his clinical experience, Dr. Najjar received a Master of Business Administration from Harvard Business School and underwent additional training in quality and safety to protect patients from harm, improve their outcomes and experiences, and eliminate disparities. Dr. Najjar’s research focuses on making care safe, affordable, and patient-centered from the clinic to the operating room. more


  • Medical Director for Clinical Operations, Armstrong Institute for Patient Safety & Quality
  • Assistant Professor of Surgery

Departments / Divisions



  • MD; University of Chicago Pritzker School of Medicine (2011)


  • General Surgery; Brigham and Women's Hospital (2019)


  • Brigham and Women's Hospital (2016)
  • Colorectal Surgery; Brigham and Women's Hospital (2020)

Board Certifications

  • American Board of Surgery (General Surgery) (2019)

Research & Publications

Research Summary

Dr. Najjar's research focuses on colon and rectal surgery, patient safety and surgery protocol, enhanced patient recovery, abdominal cancer, operating room cost and emergency general surgery.

Activities & Honors


  • Brigham and Women’s Hospital Safety Matters Award
  • Brigham and Women’s Hospital Partners in Excellence Award - Clinical Pathway Team
  • Harvard Medical School Excellence in Surgical Research
  • Brigham and Women’s Hospital Partners in Excellence Award – Coding Complications Team
  • Harvard Business School Robert S. Kaplan Life Sciences Fellowship

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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