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About

Texas Oncology in Dallas: A private, physician-led cancer care network founded in 1986. Headquartered in Dallas, TX, it employs about 2,034 staff and operates 4 offices nationwide, with the Dallas HQ at 12221 Merit Drive, Suite 500, Dallas, TX 75251. The network comprises 460+ oncology specialists delivering medical oncology, hematology, radiation oncology, gynecologic oncology, pediatric hematology/oncology, breast, urology, and related cancer care, plus access to clinical trials and research. Treats 68,000+ patients annually across Texas (and a presence in NM and OK). Contact: 1-888-864-4226 / 972-234-2987.

Clinic Type

Oncology

Address

12221 Merit Drive, Suite 500, Dallas, Texas 75251, US

Phone

(888) 864-4226

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Insurance & Payment

Languages Spoken

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Yelp (Presbyterian Cancer Center Dallas): 4.3/5 (11 reviews)
  • Birdeye (Medical City Dallas Building D): 2.9/5 (24 reviews)
  • Top Rated Local (Baylor Sammons Cancer Center): 4.01/5 (45 reviews (combined))

Patients praise

  • Compassionate and caring doctors and medical staff
  • Clear communication of treatment plans
  • Effective and life-saving medical outcomes
  • Positive and professional patient experiences with oncology team

Common complaints

  • Difficulty contacting office via phone
  • Administrative/billing issues including refund delays
  • Long wait times for appointments
  • Unprofessional behavior by some front-desk staff

"Dr Oshaughnessy reviewed my results came up with written plan of action which we followed 1.2.3 … and I’m two years past TNBC, she always listens to any concerns and then we discuss what is best for my health."

Birdeye (Review of Dr. Joyce O'Shaughnessy)

"I was charged nearly EIGHT TIMES what I owed... I have now been waiting TWO MONTHS for the refund and was told it could take THREE MONTHS for a refund."

Birdeye (Review of Medical City Dallas Building D)

"Everytime I try to call this office I can NEVER get through!! I listen to all the prompts, and when I select the number, nothing happens... And I am getting VERY frustrated with this office with this ongoing issue!!!!"

Birdeye (Review of Texas Oncology-Rowlett)

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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