Family Medicine - Diagnostic Clinic of Longview
Primary Care • Longview, TX • Since 1975
About
Summary: Diagnostic Clinic of Longview (DCOL) is a privately held medical group and hospital-affiliated provider based in Longview, Texas, offering comprehensive family medicine along with multiple specialties to East Texas. Founded in 1975, DCOL employs about 96 staff and generates roughly $8.7 million in annual revenue. The clinic provides general/family medicine and specialties such as internal medicine, pediatrics, OB/GYN, gastroenterology, orthopedics, cardiology, pulmonology, neurology, urology, and more. Contact: 903-757-6042. Website: dcol.net.
Clinic Type
Primary Care
Address
805 Medical Circle, Longview, TX 75605
Phone
903-757-6042
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Opening Hours
Monday - Thursday 7:30 a.m. - 5:00 p.m.; Friday 7:30 a.m. - 4:30 p.m.
Services Offered
Technology & Equipment
Team
Insurance & Payment
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Languages Spoken
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Current Offers
New Patient Offer — null
FAQs
What are the hours of operation?
Hours of Operation: Monday - Thursday 7:30 a.m. - 5:00 p.m. Friday 7:30 a.m. - 4:30 p.m.
Social Media
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye: 4.8/5 (1,692)
- Expected Healthcare: 4.9/5 (1,116)
- Facebook: 84% recommend (70)
Patients praise
- knowledgeable and caring healthcare providers
- thorough and patient-centered medical consultations
- pleasant and helpful staff in some areas
- recent improvements in check-in and check-out processes
- willingness to go above and beyond for patient needs
Common complaints
- billing and administrative issues
- scheduling difficulties and appointment cancellations
- long wait times
- perceived decline in patient-centered care
- lack of communication regarding appointments
"Leigh Barr is the most knowledgeable, and caring health provider Ive ever had... She always has time, no matter how busy she, to answer all of my questions."
— User testimonial via expectedhealthcare.com"I was apprently refered to this clinic which I had to drive almost an hour to attend only to find out I was given wrong information. I ended up being late to an appointment that had misinformation through no fault of my own!"
— Patient review via Birdeye"Dr. Hart is a very caring doctor. He takes the time with you that a lot of doctors won't. He doesn't act like he's in a hurry to get to the next patient."
— Patient review via BirdeyeSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Wilson, Allessia, M.D. - Diagnostic Clinic of Longview — Aug 18, 2025
- Ly, Phuong, M.D. - Diagnostic Clinic of Longview — Jul 14, 2025
- Dr. Sarah Chavez, MD - Family Medicine Doctor in Longview, TX — May 14, 2026
- Dilvio Miranda — Apr 3, 2026
- Thania Orozco — Feb 17, 2026
Information sourced from the clinic's website as of July 11, 2026.
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