Physicians & Departments

Emergency Medicine

Contact us: 508-693-0410/ 1-508-957-0113

Martha's Vineyard Hospital's Emergency Department provides medical care to all, without regard to ability to pay. Our full-time Emergency Department staff is board-certified in Emergency Medicine. We are committed to delivering care in a timely manner. If a patient requires clinical care not available here, our experienced, highly trained staff will initiate care, communicate diagnosis and medical status to the appropriate hospital off-Island and prepare the patient for transfer by ground or air transportation.

Our Emergency Department Offers:

  • Dedicated Fast-Track triage for patients with less critical illness or injuries during our peak season (June – September 1)
  • Private patient triage area
  • State-of-the-art monitoring and imaging equipment
  • Emergency stroke care as a Certified Stroke Center. For more information about our certification as a Stroke Center and how to recognize the signs of stroke click here.
  • Tele-radiology services 24 hours a day/365 days a year with our affiliate Massachusetts General Hospital
  • Prompt and reliable consultation with specialists at our affiliate Massachusetts General Hospital

To view or download the ER Brochure in English, click here.
To view or download the ER Brochure in Portuguese, click here.


Karen Casper, MD

  • Specialty: Emergency Medicine
  • Telephone: 508-693-0410
  • Medical School: Univ. of Texas Medical Branch at Galveston
  • Residency: Yale-New Haven Hospital & Boston Medical Center
  • Board Certification: Emergency Medicine

Yosef P. Glassman, MD

  • Specialty: Hospital Medicine
  • Telephone: 508-957-9360
  • Medical School: Tufts University School of Medicine
  • Internship: Johns Hopkins Bayview Medical Center
  • Residency: Tufts University School of Medicine & St. Elizabeth’s Medical Center
  • Fellowship: Harvard Combined Fellowship in Geriatrics at Brigham & Women’s/Beth Israel Deaconess Medical Center
  • Board Certification: Internal Medicine and Geriatrics

Jeffrey Horenstein, MD

  • Medical School: University of Pittsburgh
  • Telephone: 508-693-0410
  • Internship/Residency: Beth Israel Deaconess Medical Center
  • Board certification: Emergency Medicine

Katherine Stedman, MD

  • Specialty: Emergency Medicine
  • Telephone: 508-693-0410
  • Medical School: Emory College
  • Internship/Residency: Rhode Island Hospital
  • Board Certification: Emergency Medicine

Tamara Lynn Thome, MD

  • Specialty: Emergency Medicine
  • Direct Phone: 508-693-0410
  • Medical School: Virginia Commonwealth University & Medical College of Virginia
  • Internship/Residency: Brown University Emergency Medicine Residency Program
  • Board Certification: Emergency Medicine

Alamjit S. Virk, MD, Director of Emergency Medicine and Hospitalists Services

  • Specialty: Emergency Medicine
  • Telephone: 508-957-0111
  • Medical School: Medical College of Pennsylvania
  • Residency: Medical College of Pennsylvania
  • Board Certification: Emergency Medicine

Jeffrey Zack, MD

  • Specialty:: Emergency Medicine
  • Telephone: 508-693-0410
  • Fax: 508-696-4156
  • Medical School: University of Massachusetts
  • Internship/Residency: Brown University School of Medicine
  • Board Certification: Emergency Medicine