Photo of Berestrand Williams

Berestrand W Williams, MD Email Berestrand Williams

Internal Medicine
    • Positions
    • ASSISTANT PROFESSOR | Medicine, General Internal Medicine
    • ASSISTANT PROFESSOR | Pediatrics
    • Specialties
    • Internal Medicine
    • Pediatrics
    • Primary Care
    • Language
    • English
    • Hospital Affiliations
    • Mount Sinai Beth Israel
    • The Mount Sinai Hospital

Berestrand Williams, MD FAAP is a board-certified primary care doctor. Trained in Connecticut and Massachusetts, he is certified by the American Board of Pediatrics and the American Board of Internal Medicine and a member of the American Academy of Pediatrics and the American College of Physicians. After majoring in Biology and graduating with honors at Harvard University, he was awarded his medical degree from the University of Connecticut’s School of Medicine and completed two residencies – one in Internal Medicine at Boston University’s Boston City Hospital and another in Pediatrics at the combined Boston University School of Medicine - Harvard Pediatric Residency Program. Prior to joining Mount Sinai, he practiced at the East Boston Neighborhood Health Center for nine years and then served as Chief of Primary Care at Concentra Urgent Care and Family Medicine Center.  He has been nationally recognized, receiving the Surgical Scholars Award in 1987 and the AOL Foundation Grant: Franciscan Children's Hospital in 2001. He has written several publications, including Al. Cardiovascular Collapse Treated with Hemodiaysis, Journal of Critical Care Medicine, January 1991. Dr. Williams is fluent in Spanish.


American Board of Internal Medicine
American Board of Pediatrics

Clinical Focus

  • Annual Health Care Supervision
  • Blood Pressure Testing And Measurement
  • Bronchitis
  • Hepatitis A Vaccine
  • Hepatitis B Vaccine
  • Hives
  • Hypertension (High Blood Pressure)
  • Pneumococcal Vaccine
  • Pneumonia
  • Polio Vaccine
  • Primary Care
  • Seasonal Influenza Vaccine
  • Sinusitis
  • Tetanus Vaccine
  • Vitamin B12 Deficiency
  • Vitamin D Deficiency
  • Wellness


MD, University of Connecticut

Internship, Internal Medicine
Boston City Hospital

Residency, Internal Medicine
Boston City Hospital

Residency, Pediatrics
Boston City Hospital