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Now Accepting New Patients


Vitae Clinic offers services for obstetric and gynecological care, as well as natural family planning and infertility treatment.


The Vitae Clinic opened its practice in 2010 to provide a higher standard of care for our patients. We value life in all aspects of our care, from adolescence through menopause.

We serve the needs of women through NaProTECHNOLOGY®. This comprehensive system was developed through extensive research at the National Center for Women’s Health. The method applies diagnostic and therapeutic techniques that cooperate with the natural functions of a woman’s body. NaProTECHNOLOGY® is used to treat a wide range of gynecologic problems including:

· Premenstrual syndrome (PMS)
· Ovarian cysts
· Abnormal bleeding
· Irregular cycles
· PCOS and Endometriosis
· Recurrent miscarriages

Since its creation in 1976, NaProTECHNOLOGY® has helped thousands of women and couples achieve their family planning goals.

Vitae Clinic adheres to a more natural, faith-based approach to healthcare, providing life-affirming alternatives to artificial contraception, abortion, and assisted reproductive technology. Therefore, our practice does not offer prescriptions for oral or other artificial contraceptives and we do not provide services related to IVF or egg freezing. 

Our Team

Board Certified Obstetrics and Gynecology
Blake Weidaw, M.D.
Board Certified Obstetrics and Gynecology
Jeremy Kalamarides, D.O.
Family Nurse Practitioner, Certified FertilityCare™ Practitioner
Samantha Padilla
Certified FertilityCare™ Practitioner
Heather Kalamarides, MAT, CFCP

Dr. Kalamarides applies the state-of-the-art medical science of NaProTECHNOLOGY® to treat women for infertility and a full range of gynecologic health issues. He has special interests in the treatment of premenstrual syndrome (PMS), recurrent miscarriage, minimally invasive surgery, and the diagnosis and treatment of infertility. Dr. Kalamarides is highly experienced in the practice of natural family planning, having worked for years with Dr. Thomas Hilgers, who pioneered the CREIGHTON MODEL FertilityCare™ System.

Dr. Jeremy Kalamarides is Medical Director of the Vitae Clinic and has hospital privileges at Seton Medical Center, Austin. He is a member of the Texas Medical Association and the Travis County Medical Society. Dr. Kalamarides also serves on the Diocese of Austin Pro-Life Advisory Council.

Dr. Kalamarides is a graduate of Lake Erie College of Osteopathic Medicine in Erie, Pennsylvania and completed an osteopathic internship and residency in Obstetrics and Gynecology at Sisters of Charity Hospital in Buffalo, New York. Prior to medical school, Dr. Kalamarides worked tirelessly for four years as a research assistant and FertilityCare™ Practitioner for the CREIGHTON MODEL FertilityCare™ System at the Pope Paul VI Institute for the Study of Human Reproduction in Omaha, Nebraska.

Dr. Weidaw brings more than 20 years of medical experience to the Vitae Clinic, is the Medical Director of the JPII Life Center, and has been a board-certified OB-GYN since 2008, practicing full-scope obstetrics and gynecology. As a devoted Catholic, she is passionate about using faith-based medicine to treat women throughout their entire reproductive lives and through the evolution of menopause. Dr. Weidaw takes an honest, thoughtful approach to patient care. Her enthusiasm for medicine stems from her desire to be a doctor since she was four years old.


Dr. Weidaw graduated from Northeast Ohio Medical University in 2002, completing an intensive combined college and medical school program in six years. After living in Ohio her whole life, she chased sunshine down to San Antonio, where she completed her residency. Following her training, Dr. Weidaw officially began her career among the faculty at a teaching hospital, passing on her knowledge to the next generation of aspiring residents and medical students.

Since her time as a mentor, Dr. Blake Weidaw has grown her diverse career and practice by treating active servicewomen and their families at a Naval Hospital prior to opening her own private practice in Austin. Her range of experience is evidence of her ability to work successfully with different patients across a variety of clinical settings. As part of her role at the Vitae Clinic, Dr. Weidaw is trained in NaProTECHNOLOGY®. With the addition of her new skill set, she looks forward to treating even more women.

Dr. Blake Weidaw and her two children have been living in Austin for more than 4 years. In her free time, she enjoys playing tennis and making a nice home cooked meal.

Samantha Padilla brings over 10 years of Labor & Delivery experience to Vitae Clinic, as well as top-notch clinical education with a strong passion for treating OB/GYN patients. Samantha completed her Bachelor of Science in Nursing at the University of Texas at Austin and her Master of Science in Nursing at the University of Texas Medical Branch, Galveston.  In addition to providing comprehensive care, Samantha also leads free childbirth preparation classes for Vitae Clinic patients at Ascension Seton Hospital on 38th Street in Austin. She is currently studying to become a Fertility Care Practitioner and Medical Consultant in NaproTechnology under the guidance of Dr. Hilgers in Omaha, Nebraska.

When Samantha is not teaching classes or seeing patients in the clinic, you will likely find her with her husband, Andrew, and their four active boys. They enjoy hockey games, live music, and are active parishioners at St. Louis Catholic Church.

Heather Kalamarides, MAT, FCP, is an experienced teacher of the CREIGHTON MODEL FertilityCare™ System and provides women and couples with quality educational instruction in learning to chart their cycles of fertility and infertility. Sessions are taught online.

Heather completed her FertilityCare™ Practitioner training through the Pope Paul VI Institute in Omaha, Nebraska and is honored to provide support and education to her clients. Heather holds a Bachelor’s Degree in Chemistry from Hiram College in Hiram, Ohio, and a Master’s Degree in Teaching from Kent State University in Kent, Ohio. Heather and her husband, Jeremy, have used NaProTECHNOLOGY® throughout their marriage


Experience a more natural approach to women's health

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