Our Office COVID-19 Information

We are updating our guest and Covid-19 policies. 

  • No guests are allowed except for one guest during your ultrasound visit.
  • Children are not allowed in the office.
  • We require masks for all patients, both vaccinated and unvaccinated.

Failure to follow these policies could result in rescheduling your appointment. Thank you for your cooperation.

Protecting your health, and the health of our staff and providers is a priority. We ask that if you are experiencing a fever of 100.4 plus or productive cough to call us at 512-425-3825, Option 3 so that we can determine the best way to meet your medical needs.

See our Childbirth Education Updates HERE.

St. David' Healthcare Visitation Policy Changes & COVID-19 Vaccine Booster

It’s been a year and a half since the first COVID-19 case was confirmed in Texas. As the virus continues to evolve, and COVID-19 continues to bear down on our community, we have remained steadfast in our resolve to combat it. Below are updates on some important and timely issues related to COVID-19 that we wanted to share with you.

Visitation Policy Changes
Due to a recent legislative mandate (Texas House Bill 2211), we are making changes to our visitation policy to comply with the new law. As of September 1, all patients will be allowed one visitor per day during visiting hours.
• Visiting hours are 5am-8pm
• Visitors must be 18 years of age or older
• Visitors must pass the entrance screening
• Visitors must wear a mask at all times
• Any patient seeking emergency care may have one visitor

One visitor may remain overnight for the following services or circumstances:
• Pediatrics under 18 years old
• Laboring mothers
• Patient advocates for elderly, disabled or impaired patients
• Undergoing surgery or a procedure
• End-of-life care

We are committed to providing a safe environment for our patients, physicians, colleagues and visitors. Universal masking remains in effect and additional PPE may be required. All visitors are required to comply with these policies.

Visitation may be denied if an attending physician determines in-person visitation with the patient may lead to the transmission of an infectious agent that poses a serious community health risk.

COVID-19 Vaccination Booster
After careful consideration of the latest medical data, the FDA recently authorized mRNA COVID-19 booster shots for immunocompromised people. A recommendation for the general population is expected soon. This measure is designed to further protect you from COVID-19 as immunity wanes with time and this virus continues to spread.

As a result, we are actively planning for hospital-based third dose vaccination clinics in late September or early October. These vaccinations will only be available to colleagues who have already received both prior doses of either the Moderna or Pfizer vaccine. Please remember to verify your vaccination status prior to September 15 through the HCA Healthcare COVID-19 immunization link.

A third shot is now available and recommended for those who are immunocompromised and, therefore, at greater risk of serious, prolonged illness. Immunocompromised colleagues are encouraged to speak with their physician about whether getting an additional dose is appropriate. This helpful link can identify the closest and most convenient location to receive the vaccine.

For now, booster shots are being advised for the mRNA vaccines only, which does not currently include the Johnson & Johnson shot. It is also recommended to receive the same vaccine administered during the prior two dose series.

For the thousands of St. David’s HealthCare colleagues who have received the COVID-19 vaccine, thank you for choosing to protect yourself and the people around you.
Moment of Silence

The Texas Hospital Association is encouraging hospitals throughout the state to observe “five minutes of silence” at noon on Friday, September 3, to honor those impacted by COVID-19. The observance hopes to shine light on the number of people who have died from COVID-19, on healthcare heroes – like you – who have bravely fought the pandemic, and on the importance of taking action to prevent further illness. We encourage you to participate in this time of reflection, honor and remembrance.

COVID-19 Vaccination
Our physicians are among the most trusted in Central Texas. The community has trusted us to care for them for decades, and now we’re asking them to trust us about the COVID-19 vaccine. We encourage you to watch the below video that features several of our physicians talking about the COVID-19 vaccine, and join us in sharing it with friends and family.

Watch Video Here

Thank you for your tireless work to beat COVID-19. Together, we can move forward and end the pandemic.

Individualized care at
every stage & every age

New Patients Welcome!


located near Mopac & Parmer
gynecologic consultant to the

UT Women’s Athletic Program

Individualized care at
every stage & every age

New Patients Welcome!


located near Mopac & Parmer
gynecologic consultant to the

UT Women’s Athletic Program

Natural Beginning Birth Center

Our Story

Our practice began in 1982 when Margaret Thompson, MD opened her solo practice after completing her training at Duke University in North Carolina. As one of the first women obstetrician/gynecologists in Austin, she worked hard to build her practice. She believed in a woman’s intelligence and ability to make her own choices about her healthcare.

In 2004, Margaret began law school at the University of Texas, Austin, and reduced her hours in the office. She hired Christina Sebestyen, MD to join her to help caring for her patients. Christina and Margaret were amazed by their similarities – both committed to excellence in education (Harvard and Duke trained), and devoted to improving the situation of women through health care and public advocacy. Together, they continued the legacy of respect for women’s choice in their healthcare.

In December 2007, Margaret completed her law degree and due to personal medical issues, she decided to retire in February 2008. Margaret asked Christina to take responsibility for her patients and the practice, and this transition took place in March 2008.

In anticipation of that transition, Christina began working with North Austin Medical Center (NAMC) to have Certified Nurse Midwives (CNM) credentialed to assist births in the hospital. After much determination and hard work, the hospital finally credentialed CNMs to work at NAMC in April 2008. The physicians and midwives of OGN worked side-by-side to provide philosophically consistent and collaborative healthcare both in the office and in the hospital.

In September of 2013, we transitioned to our current office space and brought on Dr. Piparia. Besides being a strong advocate for reducing csection rates, Dr. Piparia speaks Hindi and is skilled at surgery. She also reads all of our ultrasounds to ensure adequate physician oversight of our sonography services.

In that same year, we embarked on a new adventure – opening Natural Beginning Birth Center and moving our office to ensure the two facilities were adjacent to one another. This decision was made to ensure women in Austin have a high-quality safe out-of-hospital birth option. We grew our midwivery practice to 5 full-time CNMs who provide in-office prenatal and well-woman care. After 7.5 years of serving central Texas women, the birth center closed in April 2021 due to a lack of CNMs interested in working the in-office and on-call schedule required for out-of-hospital birth.

Over the past few years, we are proud to have added three additional physicians. Dr. Rouhani joined our group in September 2018 after completing her residency in Houston. A native-Austinite, she was excited to return to her home town to grow her own family.

Dr. Teng moved from Seton Williamson to our group in November 2019 after the closing of their 3-physician practice. She brings many years of experience and a deep desire to improve women’s healthcare through political advocacy. Her toddler son has already participated in peaceful protest.

Most recently, Dr. Evans came from the Galveston area to join our practice in March 2020. She completed her residency in Galveston and initially stayed in the area for work. She has two wonderful fur-babies that are lucky to have her love.

With the closing of our midwivery practice, we have been fortunate to find Eugenie Anderson, NP and Leticia Perez, PA to join our team. Both have many years of experience in women’s healthcare and share our devotion to educating women on their healthcare options.

Each of us as women is seeking a type of healthcare that suits our personality and philosophy. We hope that ours is a good fit for you and we look forward to welcoming you to our practice.


is the practice of:

Maansi Piparia


Rebecca Teng


Dr. Allie Evans headshot

Allie Evans


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