Calvert Charles, DO
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Calvert Charles, DO
Healthcare Associates of Texas has provided primary care to families across the Dallas Fort-Worth area for more than a quarter of a century. Healthcare Associates of Texas is uniquely prepared to care for the medical needs of your entire family. Whether you require non-emergency medical care, chronic disease management or ongoing wellness oversight, we'll care for you like family.

We offer board-certified physician services in the fields of both family and internal medicine. Healthcare Associates of Texas is comprised of board-certified primary care and internal medicine doctors, as well as physical medicine providers, who are ready to care for you like family. What Is in the Flu Shot?
Services
The greater Dallas/Fort Worth area has experienced tremendous growth over the past 25 years, and Healthcare Associates of Texas has grown right along with it. Starting with just two doctors and one office, we now have fifteen locations across the metroplex. Our continued growth is made possible through the application of a clear strategic vision and sound business practices.
Healthcare Associates of Texas provides a total continuum of care by offering comprehensive family medicine and ancillary services all under one roof. Our board-certified physicians, complemented by certified Physician Assistants and Nurse Practitioners, are dedicated to the comprehensive wellness of our patients - physically, emotionally and financially.
We know how hard it can be to find a primary care doctor who accepts Medicare. The way we see it, you are the people who built our communities and it is our turn to serve you. We consider it an honor and a privilege to care for you. Your health matters at every age. I follow evidence-based medicine to help you become the best, healthiest version of yourself.
Want a rewarding career with a physician-led practice that provides state-of-the-art support and lets you practice medicine your way? Healthcare Associates of Texas (HCAT) is a group of quality-focused primary care providers committed to becoming the premier primary care group in the Dallas/Fort Worth metroplex.
Reviews (10)
Teresa Turner
Teresa Turner
Jan 29, 2022
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I love Doctor sherry Masterson. She is so sweet and kind to me. She always show her concerns when it come to her patients. She is my favorite.
Paul Albertson
Paul Albertson
Jan 25, 2022
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Good doctor, but still never received my prescription that I have been waiting for a year on. Pharmacist at CVS says doctor should no how to get the prior authorization done. Caremark insurance says that the pa was submitted missing the required information.Tired of giving medical assistant phone calls and phone numbers to call. Looks like I am forced to find another Doctor.
Thelma Cervantes
Thelma Cervantes
Jan 13, 2022
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Very friendly and sharp staff. Clean short waiting time. Have no complaints always treated with respect. Dr very knowledgeable, thoughtful, friendly and thorough. They have my trust and I'm willing to take their advice and treatment.
Will highly recommend.
Sally Sjk Kim
Sally Sjk Kim
Dec 22, 2021
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I feel they overcharge here and tested me for things that were irrelevant to my pain. I left with the practitioner giving me a print out of stretches I can do for my back pain that she "literally just googled" online... Can't say that was worth $450 in billing. I also had to ask what the cause of the pain was and she said you might have scoliosis or muscle spasms but didn't confirm it until I had to ask. I feel for the price you're charging, you should be thorough with the diagnosis even if there's not a serious cause-- not just make assumptions after the treatments have been completed and charged
Somer Sexton
Somer Sexton
Dec 22, 2021
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I was a patient and recently got sick, took an at home Covid test and was positive, asked if I could get a prescription filled and was told I needed an actual test from a testing location, 3 days later I was able to get that done and called back and then was told I need a telemede appointment to have any medicine called in but that they did not have any available for another week! Mind you at that point I would have had Covid for 9 days!! All they care about is an appointment to charge insurance for! They do not care about their patients and I will not be going back there!! If I could rate zero
Prasanth V.
Prasanth V.
Dec 18, 2021
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Save yourselves from Mental harrasment and wrong billings. Although all insurance companies update Covid Tests and Covid Visits are fully covered this hospital charges for Covid Tests. If you go for covid test you need to pay for Hospital Visit charges also. You need to pay a Hospital visit charges if Hospital informs you about your covid results over phone. Don't think that you paid all the bills in 1 or 2 months. You will get surprise bills after a year of your visit with wrong charges, threatening to send the bill for collections if you don't pay. They are abusing their power of sending uncollected
Brian A.
Brian A.
Dec 17, 2021
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I really appreciate the fact that this office does not overbook. I never have to wait long before they take me back to the exam area. Miss Karrah is excellent and I’m so glad to have her as an important member of my Healthcare Team. Thanks for all you do. BRIAN
Alekhya Sridhara
Alekhya Sridhara
Dec 13, 2021
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Worst Billing department ever I came across. They keep sending bills even after calling and specifically mentioning that the Insurance provider they claimed is not correct and updated them. They even went ahead and claimed with wrong provider. They opened a case and told me they’ll update me. But no calls at all.
Even if that is acceptable when I call them they tell don’t take responsibility. I keep getting bills from 2years ago. I stopped going there just for mental peace.
Yoli Hohman
Yoli Hohman
Dec 12, 2021
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Excellent patient care and services! Special thanks to Grace Rodriguez, patient services manager, Marissa S., at the front desk, Michael Sullivan, PA and Kesha, medical assistant.
Very professional, friendly, caring, they go the extra mile to help. Thank you for everything you do for your patients!!
Abbey Adeyeye
Abbey Adeyeye
Oct 28, 2021
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Dr. Gaman is one of the best family Doctors around here. He understood the anatomy and physiology of human body, with a greater degree of patience. His staffs are first class!!! Being a good listener has kept us together with Him for 32 years. He always make sure that our recommended screening tests, are done promptly. All questions are answered, results are communicated effectively. He is simply the best !!!!