Heather Bartos, MD, FACOG
Medical Director

“Ginger Rogers did everything Fred Astaire did only backwards and in high heels.”

This pretty much sums up my feelings about women – we do it all. We’re mothers, daughters, sisters, aunts and friends. Oftentimes, we allow ourselves to go last in an effort to support everyone else. When we forget about our own health, the entire family suffers. As Dr. Andrew Weil says, “The heart pumps the freshest blood to itself first. This is not selfish. If the heart can’t function, the whole body falls apart.”

I started off interested in the field of pediatrics, specifically infectious diseases. But then I discovered the world of ob/gyn. It involved medicine, surgery, primary care and specialty care. It encapsulated care of infants to care of grandmas. It fascinated me that I could take care of someone at the beginning of life and at the end of life – all in one specialty. And I thought men were “weenies” compared to my female patients. I knew I had to take care of women – the ones taking care of everyone else!

I spent 12 years in the US Navy, five of which were active duty. During that time, I served the women and spouses of the armed forces in both Charleston and Washington D.C. In Washington, I was also an associate professor at the Uniformed Services University of Health Sciences (USUHS), teaching medical students and residents in both obstetrics and gynecology. I also served as an expert witness for the military in sexual assault trauma.

While as a medical student and a resident, I worked at the Children’s Assessment Center in Houston, Texas, a state-of-the-art facility that treats young children who are victims of assault. It was that training that led to my interest in pediatric and adolescent gynecology, which is still an interest of mine today.

Prior to my service in the medical and military fields, I spent seven years in marketing, advertising, and public relations, working with Texas Children’s Hospital and the Methodist Health Care System, which are both based in the Texas Medical Center in Houston. While I was there, I entered medical school at the University of Texas at Houston and then did residency at Baylor College of Medicine.

When I’m not working, I spend time with my husband, two human children, and two animal children. We enjoy cooking (we are huge Top Chef fans!) and are also huge fans of “So You Think You Can Dance.” I’m so proud to now introduce my newest baby – “be!”

Dr. Bartos has been board certified by the American Board of Obstetrics and Gynecology since 2008. She is also certified by the International Board of Lactation Consultants. She has achieved pilates instructor credentials in 2009. 


Maria LaNasa, DO

“A woman is the full circle. Within her is the power to create, nurture, and transform.” – Diane Mariechild

Women are incredibly powerful, and we can do amazing and incredible things. I consider myself lucky to be a part of a profession that can help support women at any stage of life. Whether I am helping a woman in the intimate moments of delivering a baby or offering support through menopause, my passion encompasses the full circle of women’s health.

I grew up in a large, loud, and loving family in Minnesota and attended the University of Wisconsin-Madison where my pursuit of a medical career began. Always an advocate for the empowerment of women, I developed an enthusiasm for public health and completed work towards a Master’s of Public Health at the University of Minnesota where my focus was on policy and epidemiology. I strongly believe that public health easily translates into women’s health and I am excited to use the concepts and ideas I learned with my patient care.

Continuing my pursuit of medicine, I moved from the Midwest to Philadelphia and earned a Masters of Biologic Science at Drexel University. Following this, I completed medical school at the Philadelphia College of Osteopathic Medicine where the desire to involve myself in women’s care matured. I followed my passion and entered into the OBGYN residency at Cooper University Hospital; a respected trauma regional academic medical center. There, I was fortunate to acquire experience from all types of women and learned to treat a vast breadth of acuity and conditions; including oncologic care and high-risk pregnancies. While at Cooper I also conducted research on cancer in pregnancy with the leading physician of that topic and her world-renowned registry. That exposure to research left me in awe of the strength, resilience, and determination of the women involved.

My overall respect and awe of women, at all stages of their lives, led me to look for a practice that championed the scope of comprehensive and progressive women-centric care that I want to implement. It is what drew me to Dr. Bartos and be! My husband, young son, cat and dog and I are happy to have moved to Frisco in 2019. A previous dancer, you can now find me running outside or escaping, especially in this heat, to a cooler yoga studio! My family and I love to travel and experience new things and are self-proclaimed “foodies” – so recommendations for good dining are welcomed!

Thrilled to set down roots here in the DFW area and to immerse myself in Texas culture and this fast-growing area, I look forward to treating you and your family – and am excited to create lasting and caring relationships.

Dr. LaNasa is a board-eligible OG/GYN with a background in public health, oncology research, with a special interest in pelvic medicine and reconstructive surgery.


Katie Anderson, FNP-C

“You treat a disease, you win, you lose. You treat a person, I guarantee you, you’ll win, no matter what the outcome.” -Patch Adams

As a Family Nurse Practitioner, my true calling and passion involve the health of the entire family—man, woman, and child. I enjoy creating dynamic partnerships with my patients that can help them achieve a satisfying and healthy lifestyle at any age. I have an appreciation and deep understanding of the role lifestyle, nutrition, and exercise play in the state and progression of disease, as well as the factors that support or hinder health behavior changes.  I believe that preventive medicine should be the cornerstone of healthcare. It is our role to help people accomplish their goals of staying well and preventing illness.

I received my Bachelor of Science in Nursing from Texas Tech University and my Master of Science in Nursing and FNP degree from Texas Woman’s University.

In my free time, I enjoy reading, hiking, snowboarding, and spending time with my husband, son, daughter, and dog.

Katie brings 11 years of healthcare experience with a focus on family medicine across the lifespan, hormone replacement therapy, as well as a background in trauma and critical care.


Mary Eberhart, WHNP-BC

“Here’s to Strong Women: may we know them, may we be them, may we raise them.”

My special passions in women’s healthcare include menopausal care, hormone therapy, abnormal pap smear management and colposcopy and teenage health.
I began my career as a nurse in labor and delivery but then broadened my scope after I realized I enjoyed taking care of women in all phases of life. A native of Texas, I have lived and worked in the North Texas area my entire career, and I am dedicated to the women of this area.

I obtained my nursing (both BSN and MSN) degrees from TWU and then my NP degree from University of Texas at Southwestern medical school.

When I’m not seeing patients, I spend time with my husband, my children, and my four dear grandkids. I like to refurbish furniture, and I am a huge fan of the shabby chic look.

Mary has been a board-certified women’s health nurse practitioner since 1996. She also has specialized training in colposcopy and abnormal pap smear management. Her expertise in bio-identical and traditional hormone therapy, thyroid therapy and gynecology services for women aged 20-100 is beyond compare.


Amber Higgs, APRN, CNM, C-EFM

“Midwives create a circle of support and safety during labor and birth that encourages, rather than disrupts, the normal processes that facilitate healthy outcomes for families” -Varney’s Midwifery

Amber says her journey to becoming a health care provider actually began with her journey into motherhood. 

As a young couple, we struggled with infertility.  We embarked on the IVF path completely naive, but I quickly became obsessed with understanding what was happening and why.  I wasn’t afraid to ask questions and research back then, and I haven’t stopped since.  

I’m a DFW native and love taking care of the community that I was raised in.  I received my Bachelor’s in nursing from University of Texas-Arlington and my Master’s degree and training as a nurse midwife from Texas Tech University. For over a decade I worked across the metroplex as a Labor and Delivery Nurse, learning tips and tricks from some of the best doctors and midwives in our area, including our very own Dr. Bartos.

 As a provider, my goal is to educate and empower our patients to the point that they are comfortable also asking the why questions. I love being able to bridge the gap between the cloud of mystery that medicine can be and the lifestyle, diet, and holistic changes that we can utilize so that we can come up with the best individualized treatment plan together.  When it comes to labor and birth, my midwife roots shine through as I strive to protect the natural process that birth should be as much as possible. You’ll often hear me saying, “You’re normal until proven otherwise” and I truly believe that. Midwives are empowered with the patience to allow birth to unfold as it should, the skills to intervene when necessary, and the wisdom to know where that line is drawn for each person. 

In collaboration with the incredible doctors at be., Amber is able to offer her skills for both low risk and high risk OB patients, manage family planning/contraception, and provide gynecologic care for women throughout all stages of life.  

She received her Bachelor of Science in Nursing from the University of Texas at Arlington and her Masters of Science in Nursing and training as a Certified Nurse Midwife from Texas Tech University. She stays busy at home with her three children, twin boys, and a younger daughter, and also enjoys reading and travel.



Casey Jamison, WHNP, FNP

“All the money in the world can’t buy you back good health.” – Reba McEntire

First and foremost, I believe in the importance of preventative medicine and treating the whole patient.

I was raised in Dallas and attended nursing school at the University of Oklahoma. After six years of Trauma ICU experience, I attended Texas Women’s University where I earned my Women’s Health Nurse Practitioner. I then completed my Family Nurse Practitioner in 2016 from South University.

When I’m not working, I’m spending time with my husband and our two kids. I love to travel, read, and spend time with my family.

Casey brings a background of trauma and critical care combined with a focus on women’s health to our practice.

Lakisha Marks

Lakisha Marks, APRN

My lifelong passion has been working with our historically underserved seniors. Over 17 years of medical experience – 13 of which have been in nursing – I have learned the importance of advanced education. My medical experience includes Phlebotomy, hospital Direct Observation Unit nursing, Internal Medicine, Cardiology, Urgent Care, Medical-Surgical/Telemetry nursing, Home Health, and Case Management. Early in my career, I was intimidated by nursing, but I’ve always been inquisitive. I often wondered if I could one day be the nurse who took care of the very same patients I drew blood from in the early morning hours as a Phlebotomist. There had to be something I could do for those who needed my service.

My mother was diagnosed with Multiple Sclerosis and depended on me for care from a very young age. From that time, I recognized the same service that I provided to my mother at home could be applied as a career. I also began to develop and strengthen my patience and compassion for those who are unable to help themselves. Something had to be done, and I wanted to further my education. I began my path of becoming a Registered Nurse and, ultimately, a Family Nurse Practitioner.

I obtained my license as a Registered Nurse in 2013, and graduated from Grand Canyon University in 2015 with a Bachelor’s Degree in Nursing. In 2018, I graduated with my Masters in Nursing – Family Nurse Practitioner from the University of Texas at El Paso.

As a Family Nurse Practitioner, it is my responsibility to provide high-quality healthcare to my patients. It is my calling to interact, treat, prescribe, and come up with my own unique way to care for and treat my patients. I see you as an individual, not one of many patient appointments I have to get through for the day. I truly love what I do.

In my free time, I enjoy creating memories with my family, friends, and our fur baby. I also enjoy laughing and making others laugh – after all, it is medicine. 

Lakisha brings over 17 years of medical experience to the practice. As a Family Nurse Practitioner, she cares for patients of all ages, but particularly loves working with our senior patients.