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    Dr. John F. Shield, MD

    Internal Medicine, Pulmonary Disease

    Dr. Shield's Overview

    Dr. Shield graduated from the Loma Linda University School of Medicine in 1979. He works in Sonora, CA and specializes in Internal Medicine and Pulmonary Disease. Dr. Shield is affiliated with Sonora Regional Medical Center.

    Dr. Shield's Experience

    Years in Practice: 37

    Dr. Shield's Specialties

    Internal Medicine, Pulmonary Disease

    Dr. Shield's Education & Training

    Medical School: Loma Linda University School of Medicine; Graduated 1979

    Dr. Shield'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. Shield's Accepted Insurance

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

    • Aetna Choice POS II
    • Aetna HMO
    • Aetna HMO Deductible Plan CA members only
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • 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 Direct Access
    • Blue Cross CA Pathway X Tiered Direct Access
    • View More

    Dr. Shield's Office Information & Appointments

    Office Locations

    Cedarwood Internal Medicine

    690 Guzzi Ln Ste A
    Sonora, CA 95370
    (209) 536-5070


    Office Hours and Information

    Fax: (209) 536-3539

    Practice Website: Not Available

    Accepting New Patients: No

    Medicare Accepted: Yes

    Medicaid Accepted: No

    Monday 9:00 AM - 5:00 PM
    Tuesday 9:00 AM - 5:00 PM
    Wednesday 9:00 AM - 12:00 PM
    Thursday 9:00 AM - 5:00 PM
    Friday 9:00 AM - 12:00 PM
    Saturday Closed
    Sunday Closed

    Other Physicians in Dr. Shield's Practice

    • Not Available

    Dr. Shield's Hospital Affiliations

    Office Locations

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