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Availability last updated 10/13/2026
Dr. Linh Ba Nguyen is a highly regarded internist, with a specialization in Sleep Medicine, practicing in the Dallas-Fort Worth Metroplex area. He and his wife Dr. Thuy Ngoc Nguyen treat their patients from the warm and comfortable Prima Health Clinic in Garland, TX.
Dr. Linh Ba Nguyen grew up in Houston and later attended the University of Dallas at Irving where he graduated Magna Cum Laude with a Bachelor’s degree in Biochemistry. He then went to the UT San Antonio Medical School and completed his internship in Internal Medicine. Dr. Nguyen transferred to the UTMB to complete his residency in Internal Medicine. He then joined the Prima Health Clinic in 1993. Dr. Nguyen is also board certified in Sleep Medicine, which he obtained in 2010.
Dr. Linh Ba Nguyen spends his spare time with the three daughters he has with his wife and is an avid runner. He has even run in marathons and a few triathlons.
Dr. Linh Nguyen, MD
Internist
8345 Walnut Hill Ln
#105
Dallas, TX 75231
Dr. Thuy Ngoc Nguyen is a leading internist in the Dallas-Fort Worth Metroplex area with a focus on Anti-Aging, Regenerative and Functional Medicine. She practices at the Prima Health Clinic in Garland, TX, with her husband, Dr. Linh Ba Nguyen. Patients of the clinic can expect their overall health and wellbeing to be cared for by highly experienced medical professionals.
Dr. Thuy Ngoc Nguyen is a native of Dallas and grew up assisting her father Dr. Thanh Nguyen at the Prima Health Clinic. She attended the University of Dallas in Irving and graduated with Bachelor’s degree as Cum Laude in Biology. She then went to the University of Texas Medical Branch in Galveston. Dr. Nguyen then returned to Dallas for her Internship and Residency training in Internal Medicine at the Presbyterian Hospital of Dallas. Dr. Nguyen then joined her husband, Dr. Linh Ba Nguyen, and father at the Prima Health Clinic in 1996. She is devoted to early detection and determining the root cause of illnesses through functional testing. She also provides lifestyle and nutritional therapy. She is currently undergoing a Fellowship in Anti-Aging, Regenerative, and Functional Medicine.
When not practicing medicine and caring for patients, Dr. Thuy Ngoc Nguyen spends time with her three daughters.
Dr. Thuy Nguyen, MD
Internist
8345 Walnut Hill Ln
#105
Dallas, TX 75231
Ravi Patel, MD
Internist
12720 Hillcrest Rd.
#207
Dallas, TX 75230
Nimisha Mehta, MD
Internist
860 Hebron Parkway #401
Lewisville, TX 75057
David De La Loza, MD
Internist
1720 Lakepointe Drive
117
Lewisville, TX 75057
Laurene Spencer, MD
Internist
1720 Lakepointe Drive
117
Lewisville, TX 75057
Gary E. Goff, MD, has come to be known as one of the leading physicians serving Dallas and North Texas families. His combination of reputable training, extensive experience, and compassionate service have set him apart, leading to long-term relationships with his patients built on trust and integrity. He specializes in the diagnoses, treatment, and prevention of chronic illnesses, cardiac health, cancer, diabetes, preventative medicine, common ailments, and more.
Dr. Goff attended Hardin Simmons University in Abilene, Texas, where he completed his undergraduate degree. Following undergraduate studies, Dr. Goff moved on to Dallas to attend the University of Texas Southwestern Medical School to complete his medical degree in 1993. He underwent his internship and residency training at Parkland Memorial Hospital and St. Paul University Hospital, both prestigious medical facilities.
Following the completion of his residency program, Dr. Goff gained extensive experience serving in many roles throughout the healthcare system. He has worked in affiliation with Baylor University Medical Center in Dallas, served as the medical director for both the Baylor Ellis County Community Health Clinic as well as the Pleasant Manor Nursing Center in Waxahachie, Texas, and created his own vibrant medical practice. Throughout these experiences, he has come to be seen as a caring and dedicated physician committed to community wellness.
Dr. Goff is board certified with the American Board of Internal Medicine and is a proud member of the Texas Medical Association, the Medical Group Management Association (MGMA), the American Medical Association, the Texas Medical Directors Association, and the Dallas County Medical Society. In addition, he has received numerous awards and recognitions, including the Republican Gold Medal Award for 2002 and 2003 and the Courtesy Staff Physician at Baylor University Medical Center.
Dr. Gary Goff, MD
Internist
8440 Walnut Hill Ln
Suite #200 Professional Building 4
Dallas, TX 75231
Shay Mayya, MD
Internist
5930 Royal Ln, Ste E-119
Dallas, TX 75230
Vijaya Mummadi, MD
Internist
9900 N Central Expy Ste 225
Dallas, TX 75231
Joyce Alase, MD
Internist
3960 Broadway Blvd
#140
Garland, TX 75043