Premier Gastroenterology

Katy, TX · Gastroenterologist

Rating
4.4/5
★★★★☆ 4.4
Reviews
20
Rank in Katy
#126
of 475 doctors
City Percentile
36%
rating percentile
Address
Premier Gastroenterology, 521 W Grand Pkwy S, Katy, TX 77494
Phone
(281) 392-0425
Website
kevinmarksmd.com
Status
Closed · Opens 8 AM Mon

Premier Gastroenterology is a doctor located in Katy, TX. It is one of 475 doctors listed in Katy. Its 4.4-star rating is slightly below the Katy city average of 4.5 stars. There are 4 photos associated with this location.

About Premier Gastroenterology

Dr. Kevin T. Marks is a board-certified gastroenterologist who practices general gastroenterology and hepatology. His career in health care first began in 1991 when he received a Bachelor of Science in Pharmacy degree from Xavier University of... More

Hours

SaturdayClosed

Customer Reviews

★☆☆☆☆ 1.0 robby martinez · Feb 2026

My experience at this doctor’s office has been extremely disappointing. The staff are consistently unfriendly and often act as if patient questions are an inconvenience rather than part of their job. The patient portal is practically useless. When you take the time to send a detailed question or express a concern, the response is often a one-word or short, dismissive reply that doesn’t even address what you asked. It feels careless and unprofessional. Dr. Mark and the PA always seem rushed at every single visit. There is little to no effort to truly listen, analyze symptoms, or have a meaningful discussion about concerns. Appointments feel like an assembly line — get you in, get you out, and move on to the next person. Healthcare is supposed to be about care, attention, and trust. Inste

★☆☆☆☆ 1.0 Gina R · Feb 2026

1 Star – Rushed, Dismissive, and Felt Like a Money-Driven Office This was honestly one of the most frustrating and disappointing doctor visits I’ve ever had. The entire appointment felt rushed from start to finish, and the staff’s attitude made it clear they were not interested in providing a welcoming or professional patient experience. No warmth, no patience, no real effort — just cold, unfriendly, and dismissive. Instead of actually taking time to evaluate my symptoms thoroughly, it felt like the goal was to move as fast as possible and jump straight to prescribing medication. There was little to no effort to dig deeper, discuss possible root causes, or run proper testing before pushing treatments that come with serious side effects. The vibe was very much: “Here’s a prescription, ne

★★★★★ 5.0 Tiwana Johnson · Dec 2025

Dr. Marks is very patient and kind. I don’t feel rushed during my appointment time, and he thoroughly explain things in detail for understanding.

★★★★★ 5.0 Fred Mc Koy · Aug 2025

Dr. Marks is an amazing doctor, he's very detailed and passionate about health and wellbeing. He deals with his patients with a great deal of care. Cori has cared for me during visits and she's great. Always friendly and strong sense of care and compassion for her patients.

★★★★★ 5.0 Rhonda Konvicka · Aug 2025

I have been a patient of Premier Gastroenterology for over 15 years, and Dr Kevin Marks and his staff have proven over and over again why I continue to return for all my GI needs. A special "shout out" goes to Cori. Her commitment to both professional and personal needs being met has been a constant reassurance and presence to me, personally, always available to answer any questions I may have and find solutions to any of my medical needs. She is an excellent asset to Dr. Marks' office and I simply cannot say how much Cori has assisted me in the past and continues to do so! Thank you, Cori, for everything! You're the best!

Accessibility & Amenities

✓ Wheelchair Accessible Entrance ✓ Wheelchair Accessible Parking Lot ✓ Wheelchair Accessible Restroom

Services

Gastroenterologist

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This listing is informational. Contact the business directly to verify credentials, services, and availability.