Dr. Shannon J. Marek, MD | San Marcos, TX | Gastroenterology

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Shannon Marek is a gastroenterologist who earned his medical degree from the University of Texas at Houston. He specializes in digestive health and conditions affecting the gastrointestinal system. Dr. Marek speaks English and provides comprehensive care for patients with various digestive disorders.

Dr. Marek practices at multiple locations throughout San Marcos and New Braunfels, Texas, including Christus Santa Rosa Hospital San Marcos and Resolute Health Hospital. He focuses on treating conditions such as colon polyps and diverticular disease. His expertise includes performing pathology tests and surgical pathology procedures to help diagnose and treat digestive health issues. Patients rate him 4.3 out of 5 stars on average.

AI-generated from data on this provider profile.

accepting new patients
4.3

29 Ratings
58 insurance plans accepted
speaks English
University of Texas at Houston
17 written reviews
1 specialty
10 areas of expertise
1 board certification
1 hospital affiliation
6 office locations
Male

29 ratings & reviews

Sort:

Showing 1 to 10 of 17 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. S. Marek - first time patient and was extremely pleased. Overall, attentive and provided all information that I needed. His office was able to be extremely helpful pre and post procedure. It was not 1st procedure, but was recommended to his office. Overall, pleased with overall care, procedure and process. Highly recommend!

September 20th, 2022

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Very good Doctor

July 21st, 2022

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

New patient referral. This was my first time seeing Dr. Marek. He is an excellent doctor. He was so patient and took his time to explain the procedure. I was able to have the procedure the following day after my visit. His staff is excellent in working with his patients. I am fully recovered and feeling great! So I highly recommend him and his clinic.

July 7th, 2022

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I’ve been seeing Dr.Marrek 5 years maybe longer. He got me healthy. I will not go to another Dr. He has a wonderful bed side manner, he’s honest, and to the point.

July 6th, 2022

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Efficient & professional!

December 16th, 2021

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Have been battling billing for over a year and a half because they don't understand how to code for the insurance company. Our insurance assures us we've paid everything we owe, but the doctor's office keeps trying to bill.

December 9th, 2021

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Myrick and staff are just awesome and I very much appreciate them

July 14th, 2021

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Ex Ellen's care

May 31st, 2021

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

New pt referral. Took the time to explain options, listen to concerns. Didn’t feel rushed.

April 11th, 2021

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

1-15-15, I went to a prescheduled FREE consultation for a second opinion with Dr. Shannon Marek. After further interaction upon my visit to his office I decided not to use his services and went with my original Dr. Randall Rodgers. Two months went by and I received a bill from Dr Marek through Gastro Of San Marcos NB. in the amount of $211.58. After numerous attempts of being bullied by his staff to pay this FALSE DEBT and Credit Collections, I’m still not any closer to having this removed. Today’s date is 4-21-20. Almost 5-1/2 years of relentless calls to remove this I offered to settle it just to remove it from my credit bureau to no avail. Let it be known far and wide that this Dr is a thief. Using his practice as a front to distort monies from innocent people! It my duty to let everyone know about his malpractice! I will post this in every medical field in the country as to remove Dr Marek from practicing medicine in any State!

April 21st, 2020

San Marcos

1305 Wonder World Dr Ste 200San Marcos, TX 78666

Tel: (512) 754-8676

Christus Santa Rosa Physicians Ambulatory Surgery Center

1305 Wonder World Dr Ste 105San Marcos, TX 78666

Tel: (512) 353-8161

Mon5:30 am - 5:00 pm

Tue5:30 am - 5:00 pm

Wed5:30 am - 5:00 pm

Thu5:30 am - 5:00 pm

Fri5:30 am - 5:00 pm

SatClosed

SunClosed

Christus Santa Rosa Physicians Ambulatory Surgery Center

1738 E Common StNew Braunfels, TX 78130

Tel: (830) 643-8600

Mon6:30 am - 5:00 pm

Tue6:30 am - 5:00 pm

Wed6:30 am - 5:00 pm

Thu6:30 am - 5:00 pm

Fri6:30 am - 5:00 pm

SatClosed

SunClosed

New Braunfels

2028 Sundance PkwyNew Braunfels, TX 78130

Tel: (830) 609-1933

Christus Santa Rosa Hospital San Marcos

1301 Wonder World DrSan Marcos, TX 78666

Resolute Health Hospital

555 Creekside XingNew Braunfels, TX 78130


Dr. Shannon J. Marek, MD	Bhavana Akotia, PA-C	Jan Seiler, APRN	Dr. Farah Harmouch, MD
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.3 (29 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English	Speaks Arabic, English
San Marcos , TX	Tempe , AZ	Montgomery , AL	Houston , TX
Med School: University of Texas at Houston	Med School: Charles R Drew University	Med School: Georgia State University
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Gastroenterology

Abdominal Pain
Acid Reflux Disease (Gastroesophageal Reflux / GERD)
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Hemorrhoids
Hepatitis C
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

EDUCATION & TRAINING

Medical School

University of Texas at Houston

Kaitlin Diane Waszkewitz
Nurse Practitioner
| Austin, TX
(0)
Kristen Catherine Godett
Nurse Practitioner
| San Antonio, TX
(0)
Dr. Andres Jose Gomez Aldana
Gastroenterology
| Laredo, TX
(0)
Dr. Scott D. Becker, MD
Gastroenterology
| Austin, TX
(0)
Dr. Kellie Denice Reyna
Gastroenterology
| Temple, TX
(0)
Dr. Lori Hale
Gastroenterology
| San Marcos, TX
(0)
Dr. Steven Pearce, MD
Gastroenterology
18 Years Exp | San Marcos, TX
(4)
Dr. Joseph William Caravella, DO
Gastroenterology
8 Years Exp | Seguin, TX
(0)
Dr. Darren Spearman, MD
Gastroenterology
| Fort Sam Houston, TX
(17)
Dr. Rajesh Shah, MD
Gastroenterology
17 Years Exp | Austin, TX
(41)

What languages does Dr. Shannon Marek speak?: Dr. Shannon Marek speaks English.
Which hospitals is Dr. Shannon Marek affiliated with?: Dr. Shannon Marek is affiliated with Christus Santa Rosa Hospital San Marcos.
Does Dr. Shannon Marek accept my insurance?: You can see the insurance plans that Dr. Shannon Marek accepts on their Vitals profile.
Where is Dr. Shannon Marek's office located?: Dr. Shannon Marek's office is located at 1305 Wonder World Dr Ste 200, San Marcos, TX, 78666.
Is Dr. Shannon Marek accepting new patients?: Dr. Shannon Marek is accepting new patients on Vitals. View Dr. Shannon Marek's profile on Vitals to make an appointment.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.