• About
  • Team
    • Rosemarie Dempsey
    • Shawn Dempsey
    • Katie Dempsey
  • Medicare
    • Medical Insurance
    • Medicare Advantage
    • Hospital Insurance
    • Medicare Supplement
    • Prescription Drug Coverage
  • Dental & Vision
  • Resources
  • Events
  • Carriers
  • Contact
  • (610) 296-7631
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Our Team

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Rosemarie Dempsey

Financial Advisor
Medicare Advisor
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Shawn Dempsey

Financial Advisor
Medicare Advisor
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Katie Dempsey

Administrator

Ready To Get Started?

Call Now
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Contact Us
920 Cassatt Road
Suite 200Berwyn, PA 19312
(610) 296-7631 x 308
info@catalystsis.com
HOURS

M-F: 9am - 6pm
SAT: 10am - 4pm
SUN: Closed

The products listed are not offered through GVA Wealth or Great Valley Advisor Group. Registered Representative of, and Securities and Investment Advisory services offered through Great Valley Advisor Group, Registered Investment Advisor, Member FINRA/SIPC. Catalyst SIS, Great Valley Advisor Group, GVA Wealth and LPL Financial are separate entities.
© 2026 Catalyst SIS. All rights reserved.
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Made in Philadelphia ADVSRY.
  • About
  • Team
    • Back
    • Rosemarie Dempsey
    • Shawn Dempsey
    • Katie Dempsey
  • Medicare
    • Back
    • Medical Insurance
    • Medicare Advantage
    • Hospital Insurance
    • Medicare Supplement
    • Prescription Drug Coverage
  • Dental & Vision
  • Resources
  • Events
  • Carriers
  • Contact
  • (610) 296-7631