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Serving 370,000+ residents in over 800 square miles, HEMSI is Madison County's not-for-profit emergency medical services provider and is nationally recognized for high-performance services.

  • 265 dedicated employees

  • 12 stations to serve the community

  • 36 units in a state-of- the-art fleet

  • 65,000+ calls per year

Hands-only CPR A potentially lifesaving technique involving no mouth-to-mouth contact. Learn More

HEMSI's 911 Communications Center

Accredited Center of Excellence

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HEMSI Announces Changes in Executive Staff

Huntsville Emergency Medical Services, Inc. (HEMSI) announced today that former COO Don Webster has taken on the new role of Community Relations Officer and that Dea Calce is the organization’s new Chief Operations Officer.

With more than 37 years at HEMSI and 32 in executive leadership, Don Webster has moved into the new role of Community Relations Officer.  His focus is on strengthening relationships with community partners and agencies as well as working with HEMSI team members to maximize and maintain positive customer service throughout the organization.

Calce becomes COO with extensive experience in both emergency medical services and the Army National Guard.  As Relief Shift Supervisor, EMS Program Manager, and Company Commander, he has managed every aspect of emergency medical services operations and readiness during his time with HEMSI, Redstone Arsenal, and the National Guard.  He brings a solid history of management success to continue HEMSI’s operational proficiency.


  • When I needed help, your crew was efficient, professional, and compassionate. At a time when a patient is in a state that is less than optimal, all of those qualities are extremely important in helping put the patient at ease. The crew excelled in each of those areas, and should be commended!
  • Thank you for bringing your HEMSI to see our class. It was very cool to see inside it. I’ve never been in a hospital and don’t want to go, but I liked see you and the stuff you use.
  • My husband of 50 years had his second stroke, and I had to call 911 for the first time in my life. The competence, calmness, and quick response of your people soothed us both. Thank you for responding in such a wonderful and rapid manner.
  • ““From the moment the paramedics showed up to transport our father, they put us at ease. They were wonderful in every way -- professionally and personally. We are so grateful for their service and compassion.”