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    Dr. Ramon S. Sy, MD

    Internal Medicine

    • (619) 428-4463

    Dr. Sy's Overview

    Dr. Sy graduated from the Manila Central Univ, Coll of Med, Caloocan City, Rizal, Philippines in 1976. He works in San Ysidro, CA and specializes in Internal Medicine. Dr. Sy is affiliated with Scripps Mercy Hospital.

    Dr. Sy's Experience

    Years in Practice: 40

    Procedures Performed by Dr. Sy

    Dr. Sy's Specialties

    Internal Medicine

    Dr. Sy's Education & Training

    Medical School: Manila Central Univ, Coll of Med, Caloocan City, Rizal, Philippines; Graduated 1976

    Dr. Sy's Rating

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    Overall Rating


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

    Dr. Sy's Accepted Insurance

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

    • Aetna HMO
    • Aetna HMO Deductible Plan CA members only
    • BCBS Blue Card PPO
    • Blue Cross CA CaliforniaCare HMO
    • Blue Cross CA Care Small Group HMO
    • Blue Cross CA HMO CACare Small Group
    • Blue Cross CA PowerSelect HMO
    • Blue Cross CA Select Plus HMO
    • Blue Sheild CA Bronze 60 PPO Mirror
    • Blue Sheild CA Bronze Full PPO 4500
    • View More

    Dr. Sy's Office Information & Appointments

    Office Locations

    San Ysidro Health Center

    4004 Beyer Blvd
    San Ysidro, CA 92173
    (619) 428-4463


    Office Hours and Information

    Fax: (619) 205-6316

    Practice Website:

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Monday 8:00 AM - 8:00 PM
    Tuesday 8:00 AM - 8:00 PM
    Wednesday 8:00 AM - 8:00 PM
    Thursday 8:00 AM - 8:00 PM
    Friday 8:00 AM - 8:00 PM
    Saturday 8:30 AM - 2:00 PM
    Sunday Closed

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