Walnut, CA 2 Optum locations

Find a provider in the following locations or search for one here:
  • Mary Chen, MD

    18780 Amar Rd
    Walnut, California, 91789
    1-626-810-6777
    Day of the WeekHours
    Monday9:00 AM - 5:00 PM
    Tuesday9:00 AM - 5:00 PM
    Wednesday9:00 AM - 5:00 PM
    Thursday9:00 AM - 5:00 PM
    Friday9:00 AM - 5:00 PM
    SaturdayClosed
    SundayClosed
  • Jonah Medical Group

    20627 Golden Springs Dr
    Walnut, California, 91789
    1-909-480-0200
    Day of the WeekHours
    Monday9:00 AM - 5:00 PM
    Tuesday9:00 AM - 5:00 PM
    Wednesday9:00 AM - 5:00 PM
    Thursday9:00 AM - 5:00 PM
    Friday9:00 AM - 5:00 PM
    SaturdayClosed
    SundayClosed