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Diagnostic Clinic of Longview

4.8 out of 5 · 1,804 reviews

Internal Medicine • Longview, TX • Since 1975

About

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Internal Medicine at Diagnostic Clinic of Longview (Longview, TX) - The Diagnostic Clinic of Longview (DCOL) is a privately held hospital/health care provider based in Longview, TX, founded in 1975. - They offer comprehensive family medicine and a range of specialties, including internal medicine, to the East Texas community. - DCOL employs about 96 staff and has annual revenue around $8.7 million. - Contact: main phone numbers (903) 757-6042 or +1-903-757-3808; website dcol.net.

Clinic Type

Internal Medicine

Address

Internal Medicine 709 Hollybrook, Suite 4500 Longview, TX 75605

Phone

903-757-6042

Email

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Opening Hours

Monday-Friday 8:00 a.m. - 5:00 p.m.

Website

https://www.dcol.net/services/internal-medicine/

Services Offered

  • Internal Medicine
  • Infectious Disease
  • Travel Medicine
  • Outpatient Infusion
  • Skin and Soft Tissue Infections
  • Bone Infections
  • HIV treatment
  • Hepatitis C treatment

Insurance & Payment

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Languages Spoken

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Current Offers

New Patient Offer — null (expires null)

Social Media

Facebook

Photos

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What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye: 4.8 out of 5 (1,692 reviews)
  • Expected Healthcare: 4.3 out of 5 (112 reviews)

Patients praise

  • Caring and knowledgeable providers
  • Efficient and thorough assessments by specific staff members
  • Convenient access to medical records within the network
  • Professional bedside manner for some physicians

Common complaints

  • Billing and administrative communication issues
  • Long wait times during busy periods
  • Frustration with appointment scheduling and cancellations
  • Concerns regarding staff-patient interactions and perceived lack of empathy

"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. He seems to be very knowledgeable and treats you like you matter."

— Birdeye Review

"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!"

— Birdeye Review

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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