Mary Theoktisto, MD

University	Degree	Focus	Graduated
St. Georges University (Education)	Other Degree	Other	2015

Institution	Focus	Year
Residency - Dell Seton Medical Center at University of Texas	Internal Medicine	2018
Internship - Dell Seton Medical Center at University of Texas	Internal Medicine	2016
Fellowship - University of Texas Health Science Center-San Antonio	Infectious Disease	2020

Open full review

Review by Anonymous on May 05, 2026 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ The doctor was very helpful and ... ”

The doctor was very helpful and I'm waiting to hear back from her.

Verified Patient

“The doctor was very helpful and ...”

The doctor was very helpful and I'm waiting to hear back from her.

Anonymous 05/05/2026

Open full review

Review by Anonymous on April 21, 2026 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ She is very caring and knowledge... ”

She is very caring and knowledgeable.

Verified Patient

“She is very caring and knowledge...”

She is very caring and knowledgeable.

Anonymous 04/21/2026

Open full review

Review by Anonymous on September 25, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ A 100 percent awesome doctor... ”

A 100 percent awesome doctor

Verified Patient

“A 100 percent awesome doctor...”

A 100 percent awesome doctor

Anonymous 09/25/2025

Open full review

Review by Anonymous on September 12, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Excellent!!... ”

Excellent!!

Verified Patient

“Excellent!!...”

Excellent!!

Anonymous 09/12/2025

Open full review

Review by Anonymous on August 19, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ She was very polite and Berry ma... ”

She was very polite and Berry match. Explainable about my diagnosis. My blood test right away. Everything and turn back returned. My phone calls awesome thank you

Verified Patient

“She was very polite and Berry ma...”

She was very polite and Berry match. Explainable about my diagnosis. My blood test right away. Everything and turn back returned. My phone calls awesome thank you

Anonymous 08/19/2025

Open full review

Review by Anonymous on April 22, 2026 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr Theo is kind, understanding, ... ”

Dr Theo is kind, understanding, and has a great way to explain a complex issue to me. I feel like a left with a plan for care which is what I needed.

Verified Patient

“Dr Theo is kind, understanding, ...”

Dr Theo is kind, understanding, and has a great way to explain a complex issue to me. I feel like a left with a plan for care which is what I needed.

Anonymous 04/22/2026

Open full review

Review by Anonymous on January 30, 2026 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ She is very thorough and nice... ”

She is very thorough and nice

Verified Patient

“She is very thorough and nice...”

She is very thorough and nice

Anonymous 01/30/2026

Open full review

Review by Anonymous on September 16, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Excellent care!... ”

Excellent care!

Verified Patient

“Excellent care!...”

Excellent care!

Anonymous 09/16/2025

Open full review

Review by Anonymous on September 09, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr Theoktisto is very patient an... ”

Dr Theoktisto is very patient and understanding. She spent a lot of time with me explaining my situation

Verified Patient

“Dr Theoktisto is very patient an...”

Dr Theoktisto is very patient and understanding. She spent a lot of time with me explaining my situation

Anonymous 09/09/2025

Open full review

Review by Anonymous on August 08, 2025 -

Baylor Scott & White Specialty Clinic - Lakeway - 200 Medical Pkwy

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ She saved my life when I had a s... ”

She saved my life when I had a severe infection my last hospital visit. Dr Mary Theoktisto is a wonderful doctor.

Verified Patient

“She saved my life when I had a s...”

She saved my life when I had a severe infection my last hospital visit. Dr Mary Theoktisto is a wonderful doctor.

Anonymous 08/08/2025

Office Hours

Internal Medicine Physician - Infectious Disease, Internal Medicine Physician - General

Highlights

Biography

Featured Review See More Reviews

Summary

Provider Training

Photos

Specialties

Languages Spoken

Medical Specialties

Payment Options

Reviews

Office & Staff Evaluation

Provider Evaluation

Locations

Affiliated Practices

Baylor Scott & White Specialty Clinic - Lakeway

Practice Colleagues

Kara Flores, PA - Internal Medicine Physician, Physician Assistant

Todd Landsberg, AuD - Audiologist

Allison Myers Fabian, PHD - Psychologist

Richard Frazee, MD - Surgeon

James Harrison, MD - Colon & Rectal Surgeon, Surgeon

Austin Etier, PA - Neurological Surgeon, Physician Assistant

Maryam Varasteh-Kashani, AGACNP - Nurse Practitioner

Brett Smith, DPM - Podiatrist

Natalia Guerrero, AGACNP - Internal Medicine Physician, Nurse Practitioner

Matthew Romberg, MD - Obstetrician/Gynecologist

Procedures & Services

Procedures & Treatments Offered

Commonly Prescribed Medications

Accepted Insurance

Accepted Insurance