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

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Dr. Shannon Marek specializes in gastroenterology, focusing on digestive system disorders and related conditions. He earned his medical degree from the University of Texas at Houston and provides comprehensive care for patients experiencing gastrointestinal concerns. Dr. Marek speaks English and serves patients throughout central Texas.

He practices at multiple locations in San Marcos and New Braunfels, with affiliations at Christus Santa Rosa Hospital San Marcos and Resolute Health Hospital. Dr. Marek treats conditions such as colon polyps, GERD, and diverticular disease. His expertise includes performing colonoscopies, upper GI endoscopies, and lower GI endoscopies to diagnose and treat digestive health issues. Patients rate Dr. Marek 4.3 out of 5 stars on average.

Overview based on verified provider data

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 hospital affiliation
6 office locations
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Marek's Ratings and Reviews

4.3

29 Ratings with 17 written Reviews

Average Wait Time 9 Minutes

How was your appointment with
Dr. Marek?

Patients’ Perspective

Gave an accurate diagnosis: (16) Did WellNeeds Improvement (1)
Had a good bedside manner: (16) Did WellNeeds Improvement (1)
Spent time with me: (16) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (15) Did WellNeeds Improvement (1)
Flexible scheduling: (16) Did WellNeeds Improvement (1)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

29 ratings & reviews

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Showing 1 to 10 of 17 reviews

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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!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

September 20th, 2022

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Very good Doctor

Did Well

Flexible scheduling

Needs Improvement

July 21st, 2022

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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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

July 7th, 2022

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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.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

July 6th, 2022

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Efficient & professional!

December 16th, 2021

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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

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

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

July 14th, 2021

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Ex Ellen's care

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

May 31st, 2021

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

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

April 11th, 2021

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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	Theresa Obonyano, APRN	Ji Soo Choi, APRN	Dr. Jessica N. Figueredo, DO, MS
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)
			5 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English	Speaks English
San Marcos , TX	Sacramento , CA	Sacramento , CA	Houston , TX
Med School: University of Texas at Houston	Med School: The University of Texas Health Science Center at Houston	Med School: New York University	Med School: Nova Southeastern University, Dr. Kiran C. Patel College of Osteopathic Medicine
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

Graduated from University of Texas at Houston.

NPI Number

Dr. Marek's NPI number is 1528282050.

Kaitlin Diane Waszkewitz
Nurse Practitioner
| Austin, TX
(0)
Bianca Marie Blackstone
Nurse Practitioner
| Laredo, TX
(0)
Madison Annette Jolliff
Nurse Practitioner
| KYLE, TX
(0)
Carol Lee Ray
Gastroenterology
| Austin, TX
(0)
Dr. Steven Pearce, MD
Gastroenterology
18 Years Exp | San Marcos, TX
(4)
Dr. Carlos A. Neghme, MD
Gastroenterology
| San Marcos, TX
(34)
Danielle Christine Harpe
Nurse Practitioner
| New Braunfels, TX
(0)
Hong Phuc Nguyen
Nurse Practitioner
| AUSTIN, TX
(0)
Dr. Minh Thu Thi Nguyen
Gastroenterology
7 Years Exp | Rochester, NY
(0)
Dr. Lori Hale
Gastroenterology
| San Marcos, TX
(0)

How can I make an appointment with Dr. Shannon Marek?: You can find contact information for Dr. Shannon Marek here on Vitals.
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.
Does Dr. Shannon Marek accept my insurance?: You can see the insurance plans that Dr. Shannon Marek accepts on their Vitals profile.
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.

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