Appointments


What You Are Saying

When you come visit us at TienaHealth you may be asked to complete a patient satisfaction survey.

The results of our July survey revealed:
99% said the staff were friendly and courteous.
97% said it's easy to make an appointment
80% said they were seen on time for their appointment.
97% said they were treated courteously by our staff when they last telephoned our office.
97% thought our office was either nice, average or organized and efficient.
99% think our nurses are competent.
96% felt they were treated like a good friend or pleasantly by our office staff during their last visit.
98% felt we spend enough time with them.
97% felt our explanations clear and all of their questions were answered satisfactorily.
91% said our staff return telephone calls in a timely fashion
98% felt TienaHealth meets their expectations.
98% would recommend us to a friend in need of medical services.

Some Compliments:
  • I am a patient of Michael Sullivan. I followed Michael to TienaHealth and have never been so pleased. Every member of your staff is friendly, knowledgeable, and helpful. My work schedule is sometimes grueling. I am IT @ JPMorgan Private Bank - Crescent Court - Dallas. One of my favorite things is the ability to schedule office visits, view my lab results, email my doctor for advice, request prescription refills ... all online! I live in Irving. Your staff has been very prompt in getting back to me when I request a 'late appt' so I do not have to return downtown. I know everyone there is booked heavily but they have always been able to accommodate my needs.
    Thank you for investing in this online communication between your office and your patients. I am working toward total care by TienaHealth ... except my dentist!
    Best regards

  • You are so very fortunate to have such a caring doctor on your staff as Dr. David Slater. I thank him every time I have an appointment with him, but feel it is inadequate thanks for all he has done for me personally and emotionally.
    In January of this year, I had a life altering experience with the death of my daughter at age 40 from aggressive bacterial pneumonia. I came to Tiena Health only because my grief counselor saw something I didn’t see and asked me to make sure I made an appointment with my doctor. Frankly I was so despondent I hadn’t a clue why I even made an appointment or why I was even going to your [office].
    My doctor has been Dr. David Slater over the past year for general consultation and it was he who I saw that day. I wish I could tell you in words, just how deeply he has affected my life, brought me out of such despair when I was drowning in it. Dr. Slater has exhibited such compassion and caring for me through all my visits, helping me through the most difficult time in my life that I will ever experience. I am so thankful to Dr. Slater having been there for me each day that he is part of my life.

  • I've been seeing Dr. Slater as my primary physician for several years. With every illness I've ever had; he is a remarkable doctor. This has been echoed by family and friends that I have referred to him. He is always thorough, knowledgeable and compassionate. Honestly, I never felt like I had a family doctor until Dr. Slater.

  • Dr. Feehery is great; very helpful and compassionate
  • Dr. Cox—as professional and patient as any doc I’ve met
  • The nurses take their time and ask a lot of questions
  • I have been with Michael Sullivan, PA-C, for more than 20 years


  • Service areas you have identified and we are working to improve:
  • Phone system—hold times
  • Office visit wait times
  • Timely phone call returns
  • Lab services


  • If you would like to voice any compliments or concerns, please call us at 972.443.5300 - option 6. You can also email us at info@tienahealth.com