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    Dr. Gregory L. Clark, MD

    Neurology, Sleep Medicine

    • (503) 228-4414

    Dr. Clark's Overview

    Dr. Clark graduated from the University of Maryland School of Medicine in 1983. He works in Portland, OR and specializes in Neurology and Sleep Medicine. Dr. Clark is affiliated with Providence Portland Medical Center and Providence Saint Vincent Medical Center.

    Dr. Clark's Experience

    Years in Practice: 33

    Procedures Performed by Dr. Clark

    Dr. Clark's Specialties

    Neurology, Sleep Medicine

    Dr. Clark's Education & Training

    Medical School: University of Maryland School of Medicine; Graduated 1983

    Dr. Clark's Rating

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    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
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    Dr. Clark'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
    • BCBS Blue Card PPO
    • First Choice
    • First Health PPO
    • Great West PPO
    • Health Net OR PPO
    • Lifewise Health Plan of Oregon
    • Moda Health Connexus
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    Dr. Clark's Office Information & Appointments

    Office Locations

    Pacific Sleep Program

    11790 SW Barnes Rd Ste 330
    Portland, OR 97225
    (503) 228-4414


    Office Hours and Information

    Fax: (503) 228-7293

    Practice Website: Not Available

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Monday 9:00 AM - 4:30 PM
    Tuesday 9:00 AM - 4:30 PM
    Wednesday 9:00 AM - 4:30 PM
    Thursday 9:00 AM - 4:30 PM
    Friday 9:00 AM - 12:00 PM
    Saturday Closed
    Sunday Closed

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