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Diagnostic Clinic
Hours and Locations

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To contact us online please log into your patient portal. If you do not yet have a patient portal account please call us at 903.757.6042.
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Speakers Bureau

To book a Diagnostic Clinic of Longview clinical professional for your next event, please contact:

Contact DCOL

Use the Patient Portal to

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To contact us online please log into your patient portal.
If you do not yet have a patient portal account
please call us at 903.757.6042.

Contact our main DCOL office.

Call Now

903-757-6042
707 Hollybrook Drive
Longview, TX 75605

Contact our
Speakers Bureau

Call Now
Contact Tina Haggard to book a Diagnostic Clinic of Longview clinical professional for your next event.

Find a DCOL Location

Allergy, Asthma, Immunology

  • Location:
    East Texas Allergy and Asthma
    1009 N. Fourth Street, Suite A
    Longview, TX 75601

    Get Directions

    Phone:
    (903) 757-3808

    Meet the Providers:

  • Hours of operation:

    Monday-Wednesday & Friday
    8:30 a.m. - 5:00 p.m.
    Injection Desk:
    8:30 a.m. - 4:30 p.m.

    Thursday
    8:30 a.m. - 12:00 p.m.
    2:00 p.m. - 5:00 p.m.
    Injection desk:
    8:30 a.m. - 11:30 a.m.
    2:00 p.m. - 4:30 p.m.


    ** For your convenience, we do give injections during the lunch period on Monday, Tuesday, Wednesday and Friday.

Durable Medical Equipment

  • Location:
    Durable Medical Equipment
    707 Hollybrook Dr., Suite 500
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 232-8276

  • Hours of Operation:

Express Care - Walk-In Care

  • Specialty:
    Walk-In Care, Family Practice

    Location:
    707 Hollybrook, First Floor
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 232-8186

  • Hours of operation:
    Monday - Friday
    1:00 p.m. - 8:00 p.m.
    Saturday- Sunday
    9:00 a.m. - 6:00 p.m.

Family Medicine

Family Medicine - Gilmer

  • Specialty:
    Family Practice

    Location:
    602 N. Titus, Suite 120
    Gilmer, TX 75644

    Get Directions


    Phone:
    (903) 843-5585

  • Hours of operation:
    Monday-Thursday
    7:30 a.m. - 5:00 p.m.
    Friday
    8:00 a.m. - Noon

    Meet the Providers:
    Buller, David, M.D.

Family Medicine - Gilmer II

  • Specialty:
    Family Practice

    Location:
    602 N. Titus, Suite 140
    Gilmer, TX 75644

    Get Directions


    Phone:
    (903) 843-2202

  • Hours of operation:
    Monday-Thursday
    7:00 a.m.- 4:00 p.m.
    Friday
    7:00 a.m. – 11:00 a.m.

    Meet the Providers:
    King, Lewis, M.D.

Family Medicine - Marshall

Gastroenterology Clinic

General Surgery Clinic

  • Specialty:
    General Surgery

    Location:
    707 Hollybrook, 2nd Floor
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 234-1830

  • Hours of operation:
    Monday-Thursday
    8:00 a.m. - 5:00 p.m.
    Friday
    8:00 a.m. - Noon

    Meet the Providers:
    Mack, Ben, F.A.C.S.
    Pevey, Ryan, M.D.

Internal Medicine Clinic

Internal Medicine Clinic II

  • Specialty:
    Internal Medicine

    Location:
    707 Hollybrook, 1st Floor
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 291-6161

  • Hours of operation:
    Monday
    8:30 a.m. - 4:00 p.m.

    Meet the Providers:
    Rangu, Srinivas, M.D.

Internal Medicine - Gilmer

  • Specialty:
    Family Practice

    Location:
    602 N. Titus, Suite 100
    Gilmer, TX 75644

    Get Directions


    Phone:
    (903) 843-3071

  • Hours of operation:
    Monday - Thursday
    8:00 a.m. - 4:30 p.m.
    Friday
    8:00 a.m. - 11:00 a.m.

    Meet the Providers:
    McDaniel, Adam, D.O.

Maternal-Fetal Medicine

  • Specialty:
    Prenatal Diagnosis, Preterm Delivery

    Location:
    707 Hollybrook, Suite #503
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 291-6072

  • Hours of Operation:
    Monday – Thursday
    8:00 a.m. - 5:00 p.m.
    Friday
    8:00 a.m. - 12:00 p.m.

    Meet the Providers:

Medicare Center

Neurology Clinic

  • Specialty:
    Neurology

    Location:
    707 Hollybrook, Ste. 406
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 291-6142

  • Hours of operation:
    Monday
    7:45 a.m. - 5:00 p.m.

    Meet the Providers:
    Hamer, Richard, M.D.

OB/GYN Clinic II

Orthopaedic & Podiatry Clinic

Pediatrics Clinic

Physical Therapy Clinic

Pulmonology

  • Specialty:
    Pulmonology, Sleep Medicine

    Location:
    707 Hollybrook, Suite 401
    Longview, TX 75605

    Get Directions


    Phone:
    (903) 291-6223

  • Hours of operation:
    Monday - Friday
    8:00 a.m. - 5:00 p.m.

    Meet the Providers:

Rheumatology