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    Michael T. O'Brien, MD

    Family Medicine

    Dr. O'Brien's Overview

    Dr. O'Brien graduated from the Boston University School of Medicine in 1986. He works in Castro Valley, CA and specializes in Family Medicine.

    Dr. O'Brien's Experience

    Years in Practice: 31

    Procedures Performed by Dr. O'Brien

    Dr. O'Brien's Specialties

    Family Medicine

    Dr. O'Brien's Education & Training

    Medical School: Boston University School of Medicine; Graduated 1986

    Dr. O'Brien's Rating

    Rate This Doctor

    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
    • View All Ratings

    Dr. O'Brien's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna Choice POS II
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Anthem BC Pathway X EPO Network
    • BCBS Blue Card PPO
    • Blue Cross CA PPO Prudent Buyer Small Group
    • Blue Cross CA Advantage PPO Preferred DirectAccess Plus
    • Blue Cross CA Pathway X PPO
    • Blue Cross CA PPO Prudent Buyer Individual
    • Blue Cross CA PPO Prudent Buyer Large Group
    • View More

    Dr. O'Brien's Office Information & Appointments

    Office Locations

    Michael T Obrien MD

    20100 Lake Chabot Rd Ste 3
    Castro Valley, CA 94546
    (510) 581-7677


    Office Hours and Information

    Fax: (510) 581-7678

    Practice Website: Not Available

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: No

    Monday 8:00 AM - 5:00 PM
    Tuesday 8:00 AM - 5:00 PM
    Wednesday 8:00 AM - 5:00 PM
    Thursday 8:00 AM - 5:00 PM
    Friday 8:00 AM - 5:00 PM
    Saturday Closed
    Sunday Closed

    Other Physicians in Dr. O'Brien's Practice

    • Not Available

    Dr. O'Brien's Hospital Affiliations

    • Not Available

    Office Locations