Matthews Logo

Navigation Menu

Seamus O’Brien

Vice President | healthcare | Encino, CA
Image of Seamus O’Brien
About Seamus

Seamus O’Brien serves as Vice President for the Matthews™ Healthcare Division, with a hyper-focus on dental properties in the Midwest. Seamus leverages his extensive market knowledge and work ethic to provide his clients with an unparalleled level of service. The division represents private clients, both large and small, institutions, developers, and some of the largest REITs in the country. His commitment to putting his client first and creating value assures him long lasting relationships throughout the industry and certainty of execution.


Professional Accomplishments
  • 2025 – Chairman’s Club – Matthews™
  • 2025 – Crexi Platinum Broker Award
  • 2023, 2024 — Sales Achievement Award — Matthews™

Affiliations & Memberships
  • California Bureau of Real Estate
  • License No. 02129205 (CA)
Contact Seamus

Seamus O’Brien in the Media

Matthews Agents Recognized as LA Magazine’s 2026 Real Estate All-Stars

Matthews Completes $5 Million Sale of New Jersey’s Largest Dental Condo image

Matthews Completes $5 Million Sale of New Jersey’s Largest Dental Condo

Read More
Why Offices are Being Converted for Medical Purposes image

Why Offices are Being Converted for Medical Purposes

Read More