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    Mark G. MacGregor, MD

    Internal Medicine

    • (713) 442-4300

    Dr. MacGregor's Overview

    Dr. MacGregor graduated from the University of Texas Medical Branch at Galveston in 1986. He works in Webster, TX and specializes in Internal Medicine. Dr. MacGregor is affiliated with The Womans Hospital Of Texas.

    Dr. MacGregor's Experience

    Years in Practice: 31

    Dr. MacGregor's Specialties

    Internal Medicine

    Dr. MacGregor's Education & Training

    Medical School: University of Texas Medical Branch at Galveston; Graduated 1986

    Dr. MacGregor's Rating

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    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
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    Dr. MacGregor's Accepted Insurance

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

    • BCBS Blue Card PPO
    • BCBS TX BlueChoice
    • CIGNA LocalPlus
    • CIGNA Open Access Plus
    • First Health PPO
    • Humana Choice POS
    • Humana ChoiceCare Network PPO
    • Humana National POS
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    Dr. MacGregor's Office Information & Appointments

    Office Locations

    Kelsey-Seybold Clinic
    Kelsey-Seybold Clear Lake Clinic

    1010 S Ponds Dr
    Webster, TX 77598
    (713) 442-4300


    Office Hours and Information

    Fax: (713) 442-4544

    Practice Website:

    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 9:00 AM - 2:00 PM
    Sunday Closed

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