Gynecologic Oncology

  • Management of all Chemotherapy Treatments
  • Intraperitoneal Chemotherapy
  • Systemic Chemotherapy
  • Immuno-Oncologic & Targeted Therapies
  • Heated intra-operative chemotherapy (HIPEC)
  • Cancer Vaccines
  • Hereditary Cancer Management

Cancer Surgery

  • Ovarian Cancer
  • Endometrial Cancer
  • Cervical Cancer
  • Vaginal Cancer
  • Trophoblastic
  • Vulvar Cancer
  • Fallopian Tube Cancer
  • Primary Peritoneal Cancer
  • Uterine Sarcoma
  • GTD/GTN/Molar Pregnancy
  • Choriocarcinoma
  • Paget’s Disease of the Vulva

da Vinci Robotic-Assisted Gynecologic Surgery

  • Hysterectomy
  • Radical Hysterectomy
  • Ovarian removal
  • Ovarian Cyst removal
  • Abdominal cerclage for cervical incompetence
  • Fertility-sparing radical trachelectomy
  • Trachelectomy (removal of cervix) after supracervical hysterectomy
  • Myomectomy for Fibroids
  • Treatment of advanced Endometriosis
  • Surgical management of Infertility

MonaLisa Touch

Vaginal & Vulvar Laser Treatments

  • Vaginal atrophy
  • Urinary incontinence
  • Vulvar lichen sclerosis
  • HPV

Complex Pelvic Surgery

  • Vaginal reconstruction (i.e. prolapse surgery)
  • Treatment of Vaginal Prolapse
  • Treatment of Urinary Incontinence

Hereditary Cancer Management

  • Genetic Testing
  • Genetic Counseling
  • Management of Genetic Predisposition to Cancer
  • BRCA testing
  • Lynch Syndrome

Assessment & Management of Abnormal Pap Smears

  • Cervical Dysplasia
  • Carcinoma in situ
  • Adenocarcinoma in situ
  • Vaginal Dysplasia
  • Laser Vaporization
  • HPV complications

Welcome to North Texas Gynecologic Oncology

Where Women’s health is our single priority

Re: COVID-19 Update

Due to the serious spread of COVID 19, NTGO will be pre-screening their patients prior to any office visit.  Before a patient can be seen in the office, please contact (972) 490-5970 to verify whether or not you have a fever, cough or you think you have been exposed to COVID 19 and if you have traveled outside of Texas in the last 30 days.

See how the MonaLisa Touch can improve your life.

team section

Gynecologic Oncology  |  Gynecology  |  Pelvic Reconstructive Surgery  |  da Vinci Surgery   MonaLisa Touch Procedure


We offer a variety of procedures and treatment designed to ensure vaginal health. No matter the reason for seeing us, from complex gynecologic issues, to wellness-based treatment, to gynecologic oncology, we strive to create a relaxing environment for our patients. As an Oncology Medical Home (OMH) it is our goal to keep our patients informed and involved in their care. No matter your diagnosis, we will not alter our commitment to you nor to our mission of providing quality care at the lowest cost from our friendly and compassionate staff.


Our team of talented doctors bring the experience, skill, and compassion you expect from a top-rated medical facility.


Dr. Alan K. Munoz attended medical school at Louisiana State University and has been practicing gynecologic oncology in the Dallas area for over 30 years.

Dr. Munoz completed his residency at the University of Texas Southwestern Medical School and his fellowship at the University of California, Los Angeles. In addition, Dr. Munoz has implemented a pelvic surgery fellowship program within his clinic.

Though his primary medical interest is gynecologic oncology (cancer in the female reproductive organs), he is also a specialist in difficult, complex, female pelvic surgeries. He is board certified in obstetrics-gynecology and gynecologic oncology and is a member of numerous medical, gynecologic organizations.

Dr. Munoz is American Board of Obstetrics and Gynecology Certified and American Board of Obstetrics and Gynecology Division of Gynecologic Oncology Certified, as well as being a member of the American College of Obstetricians & Gynecologists, the Texas Medical Association, the Society of Gynecologic Oncology, and the American Society of Clinic Oncology

Dr. Munoz been honored by Texas Super Doctors yearly since 2004, by Dallas Magazine since 2006, and awarded the Patients’ Choice Award annually beginning in 2008. Dr. Munoz was recently selected as a Top Oncologist in Dallas by the International Association of Oncologists and will be spotlighted in The Leading Physicians of the World.

Dr. Munoz strives to enrich his patients’ lives and inspire other doctors to achieve greatness while maintaining compassion for the patients.

During his down time, Dr. Munoz enjoys playing golf and traveling with his wife, who he met during medical school.


Dr. Thomas P. Heffernan completed medical school at the University of Miami School of Medicine, graduating with an M.D. in 2001.

Dr. Heffernan did his residency in Obstetrics and Gynecology at Akron General Medical Center in Akron, Ohio and was then accepted to the Gynecologic Oncology Fellowship at the University of Texas Southwestern. He joined North Texas Gynecologic Oncology immediately after completing his fellowship in 2009.

Dr. Heffernan is a member of Alpha Omega Alpha, the medical honors society. He has published scientific papers both as an author and an illustrator.  His research during fellowship focused on cervical cancer and was supported by a grant from 3M and the American College of Obstetrics and Gynecology.

Since joining NTGO, Dr. Heffernan has been at the forefront of applying da Vinci robotic surgery for management of gynecology cancers and high complexity gynecologic surgery. In 2001 he was named an Epicenter surgeon by Intuitive Surgical, makers of the da Vinci robot, indicating excellence in his field. He has trained more than 50 gynecologists in robotic surgery both in DFW and around the country. In 2011 he and Dr. Munoz began a Fellowship in Robotics and Advance Pelvic Surgery, which is the busiest by surgical volume in the U.S.

Dr. Heffernan believes that Gynecologic Oncology is his calling. His patients are treated like family.

While in medical school Dr. Heffernan met his wife, who practices Geriatric Medicine. They have one daughter.


Graham Brown, DO, MA is a gynecologic oncologist, specializing in the surgical and medical care of women with uterine, ovarian, cervical, and other gynecologic cancers. Dr. Brown utilizes the most advanced and up-to-date surgical and medical approaches in his patient care. More importantly, Dr. Brown strives for compassionate and thoughtful care with the utmost goal of providing comfort and encouragement to patients in a time of uncertainty and often fear.

Born in the mountains of central Pennsylvania, Dr. Brown was raised in West Texas. He completed his undergraduate degree in microbiology and biochemistry at Texas Tech University in Lubbock, Texas. During this time, he also completed an undergraduate research fellowship at MD Anderson Cancer Center. Dr. Brown completed graduate school in Boston, Massachusetts at Boston University Medical Center where he studied vascular biology and tumor cell crosstalk in the world-renowned lab of Dr. Judah Folkman. Dr. Brown received his medical degree from the University of North Texas Health Science Center in Fort Worth, Texas. Following an internship in internal medicine, he completed his residency in obstetrics and gynecology at JPS Health System in Fort Worth and a gynecologic oncology fellowship at Wellspan Health/York Hospital in York, Pennsylvania.

In his free time Dr. Brown enjoys spending time with his wife and son, as well as traveling and music and is an avid woodworker.


Matthew J. Carlson, MD, MS, FACOG, FACS. is dedicated to providing the highest level of care for gynecologic cancer patients. He is devoted to offering every patient the best opportunity for a cure and the highest quality of life. He provides patients with a reassuring and confidence-building relationship for discussing all treatment options for each individual situation. Dr. Carlson works closely with a team of radiation oncologists, nurses, dieticians, patient navigators, and other support staff to ensure that each individual receives a customized treatment plan.

Dr. Carlson completed his Gynecologic Oncology Fellowship at the University of Iowa Hospitals and Clinics, Iowa City, Iowa. His Obstetrics and Gynecology Residency was completed at The Ohio State University Medical Center, Columbus, Ohio. He received his Doctor of Medicine Degree at The University of Nebraska College of Medicine, Omaha, Nebraska.

Dr. Carlson is a member of the American College of Surgeons, Fellow, the American College of Clinical Oncology and the Society of Gynecologic Oncology.

Dr. Carlson has been recognized as a Top Doctor in D Magazine and Super Doctors of Texas. Dr. Carlson has also published many research articles.

In his free time, Dr. Carlson enjoys outdoor activities such as hiking, camping, and cycling. He has two sons who play travel hockey and he loves watching them develop as hockey players and young men.

Partnership with
The Center for Cancer and Blood Disorders


See what women are saying about the NEW MonaLisa Touch!

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