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Caring for customers and colleagues during extreme weather events

March 7, 2025 |3 minute read time

Mother and child looking out a rainy window at the city

Key points

  • Evolutions in Geographic Information System (GIS) technology to identify and engage with customers and colleagues during weather emergencies.
  • CVS Health® uses GIS technology to rapidly track weather events and support health and health care, including uninterrupted access to medications, education and resources.  

  • We also quickly identify and reach out to colleagues at risk of potential emergencies, including the wildfires that occurred in early 2025 in Los Angeles, Ventura and San Diego counties.

Advancements in technology and a robust enterprise resiliency framework help CVS Health® to deliver support to patients, members and customers when it’s needed most — including during extreme weather events.

Geographic Information System (GIS) technology is at the heart of how we deliver this support. It turns large geographic data sets into easily digestible insights and user-friendly graphic visualizations, allowing us to make informed decisions quickly in urgent situations. Combined with data on weather, wildfires, seismic activity and other third-party information, this system becomes a powerful tool for identifying people and CVS Health facilities potentially impacted by adverse events.

One way that weather-related incidents can have a clinical impact is the potential for interrupting access to prescription medications. Over six out of ten adults in the U.S. take at least one prescription medication, and it is well-known that adherence to a medication plan is important to achieving the desired outcomes.

CVS Caremark® Mail Service Pharmacy and CVS Specialty® use GIS technology to ensure critical medications get where they need to on time — patients’ homes, providers’ offices, and our retail pharmacies — without weather interruptions. This is particularly important given that some medications, including many specialty medications, require refrigeration.

In 2024, during Hurricane Beryl, GIS technology allowed CVS Health to protect packages containing prescription medications across over 1,200 of the most impacted ZIP codes. 

With help from GIS, we acted quickly during Hurricane Beryl, rapidly responding by transferring prescriptions from affected to unaffected pharmacies, deploying over 40 generators, mobilizing refrigerated trucks to preserve cold-chain medications and working with local organizations to deliver on-the-ground support to our customers.

During the record-breaking heatwaves of the summer of 2024, Aetna® used GIS technology to identify Medicare Advantage members facing extreme heat, enabling care managers to reach out and offer education and support.

We also use the same framework to support our colleagues. In a six-month period, our enterprise resiliency team captured more than 3,500 incident alerts with a high degree of accuracy using GIS technology, resulting in more than alert notifications to colleagues to warn them of potential emergencies. GIS technology has also helped us track the locations of the wildfires in Los Angeles, Ventura and San Diego counties in near real-time and identify the ~12,000 colleagues residing in impacted areas to proactively outreach and assess their support needs.

The CVS Health app can help customers prepare for extreme weather conditions. Customers who use the CVS Health app can now receive push notifications to help prepare for poor air quality and snowstorms. Those who have opted in to receive notifications can click into the app for a curated list of products and content related to the weather. Learn more about the CVS Health app.

Weather and health are tied closely to one another. Building and enhancing our enterprise resiliency infrastructure allows us to serve people when they need it most during adverse weather events.

References:

Zaleski AL, Craig KJT, Horman S, Getler P, Wright J, Beltz E, Williams S, Verbrugge DJ,
Chaguturu S. Leveraging Geolocation Technology to Support Retail Pharmacy
Consumers During Hurricane Beryl. Institute for Healthcare Improvement 2024 Forum.
December 8-11, 2024; Orlando, FL.

Zaleski AL, Hines AL, Craig KJT, Kulkarni SV, Simoni E, Verbrugge DJ, Hamilton E,
Knecht D. Impact of Extreme Heat Days on Healthcare Utilization and Expenditures
Among Members of a Large National Payor. American Medical Informatics Association
(AMIA) 2024 Annual Symposium. Nov 9 – 13, 2024; San Francisco, CA. Available here.

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