Gareth Weiner | Thornton, CO | Gastroenterologist

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Dr. Gareth Weiner treats colon polyps, hemorrhoids, and diverticular disease, and performs colonoscopy, lower GI endoscopy, and upper GI endoscopy. They have practiced gastroenterology for 38 years and are affiliated with Platte Valley Medical Center.

Dr. Weiner completed their residency at University of Colorado Health and earned their medical degree from the University of Colorado School of Medicine. They see patients in Thornton, Colorado, and speak English and Spanish. Patients on Vitals rate Dr. Weiner 4.75 out of 5.

Overview based on verified provider data

accepting new patients
4.8

61 Ratings
38 years of experience
49 insurance plans accepted
speaks English, Spanish
University Of Colorado Health
54 written reviews
1 award
2 specialties
12 areas of expertise
1 hospital affiliation
1 office location

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

Based on patient feedback. Read the reviews

Gareth Weiner's Ratings and Reviews

4.8

61 Ratings with 54 written Reviews

Average Wait Time 15 Minutes

How was your appointment with
Gareth Weiner?

Patients’ Perspective

Gave an accurate diagnosis: (49) Did WellNeeds Improvement (3)
Had a good bedside manner: (50) Did WellNeeds Improvement (3)
Spent time with me: (50) Did WellNeeds Improvement (3)
Provided follow-up after the visit: (46) Did WellNeeds Improvement (3)
Flexible scheduling: (34) Did WellNeeds Improvement (0)
Saw me in a timely manner: (3) Did WellNeeds Improvement (0)
Staff was courteous: (3) Did WellNeeds Improvement (0)

Patients frequently commend Dr. Gareth Ronald Weiner for his professionalism, thorough communication, and caring bedside manner, which instill confidence and comfort during procedures. They appreciate his ability to explain procedures clearly and provide empathetic care, along with the efficiency and friendliness of his supportive staff. The reviews consistently highlight the smooth and efficient management of the clinic and the caring attitude of both Dr. Weiner and his team. However, there is a minor note of dissatisfaction regarding occasional long waiting times before procedures.

AI-generated from the text of patient reviews

61 ratings & reviews

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Showing 1 to 10 of 54 reviews

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Efficient, but not rushed. I felt comfortable and procedure went smoothly. Thanks doc!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Saw me in a timely manner
Staff was courteous

Needs Improvement

September 22nd, 2026

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Best experience for a colonoscopy, as strange as that sounds. Very professional, very informative.

August 26th, 2026

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The staff was so friendly and helpful. I would like to give a shout out to Jim the tech that took me back to get me ready. So helpful, understanding and funny! I’ve never felt more appreciated and taken care of. Dr. Weiner and his surgery staff were very sincere. Thank you all for the great experience!

Did Well

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

Needs Improvement

August 18th, 2026

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Very professional and great bedside manner. The whole staff was very friendly

August 18th, 2026

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Truly exceptional care. I was the most nervous I’ve ever been for a procedure but felt very safe and comfortable with each interaction. Dr. Weiner and his team are ELITE Professionals, which is exactly why I chose them for care…highly recommend! -The staff at the front desk were prompt, courteous, and efficient. -Pre-Op Nurse Lauren got me situated and ready for the procedure. -CRNA Noelia was very sharp, thorough, and kind and she reviewed everything and made sure all questions were answered and everything covered. -Nurses Shannon, Meagan, and Andrew took great care of me throughout. After the procedure, they had a few options of cookies and the short bread cookies were amazing!!! 100000000 out of 5 stars! Thank you again to Dr. Weiner and all the caregivers who took amazing care of me!!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

Needs Improvement

June 24th, 2026

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Great bedside manner.

June 12th, 2026

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The procedure at Rose surgical center went smoothly, was handled professionally, and was an overall great experience. Dr Weiner had a great bedside manner and even cracked some jokes, the anesthesiologist was kind and knowledgeable, and the nurses and techs were compassionate and good at their jobs. Well done team— you made otherwise unpleasant procedure much better than expected!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling
Saw me in a timely manner
Staff was courteous

Needs Improvement

May 12th, 2026

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It was a great visit, very informative and helpful

April 11th, 2026

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Dr. Weiner as well as the ones assisting that day - Shay and Steve were the names I received - were all incredibly kind, professional and compassionate and helped put me at ease with a very uncomfortable procedure, it was a relief to be treated with such gentleness and 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

March 4th, 2026

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Dr. Weiner was very professional and friendly. He was very informative both before the procedure and after. The whole staff was friendly and helpful.

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

January 7th, 2026

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Gareth Weiner

10001N Washington StThornton, CO 80229

Tel: (303) 252-4442

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed


Gareth Weiner	Chimdi Mfebe, APRN	Christie Blanton, NP	Vivian Ussui, PA-C
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients
4.8 (61 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
38 Years of Experience		17 Years of Experience	25 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks English, Spanish	Speaks English
Thornton , CO	Little Rock , AR	Boulder , CO	Longmont , CO
Med School: University Of Colorado School Of Medicine	Med School: Chamberlain University College of Nursing	Med School: University Of South Alabama College Of Medicine	Med School: Universidade Estadual De Campinas (Unicamp) Faculdade De Ciencias Medicas
Current Profile	View Profile	View Profile	View Profile

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

Gareth Weiner holds an active medical license in the state of Colorado.

Medical License

Medical Doctor with an active medical license in the state of Colorado that expires in 2027.

Education & Training

Residency

Completed their residency at University Of Colorado Health.

Medical School

Graduated from University Of Colorado School Of Medicine in 1988.

NPI Number

Gareth Weiner's NPI number is 1003845249.

Priya Shree Rolfes
Pediatrics
9 Years Exp | Aurora, CO
(0)
Brittany Cook
Nurse Practitioner
| Aurora, CO
(0)
David Sean Willcutts
Pediatrics
9 Years Exp | Birmingham, AL
(0)
Nicholas Alexander Dodd
Pediatrics
5 Years Exp | Aurora, CO
(0)
Geetha Bhagavatula
Pediatrics
10 Years Exp | Aurora, CO
(0)
Shera Elaine Brandvold
Nurse Practitioner
| Englewood, CO
(0)
Kristin Kyle Babson
Nurse Practitioner
| Aurora, CO
(0)
Dr. Bruce John Weber, DO
Gastroenterology
50 Years Exp | Thornton, CO
(24)
Dr. Cezina Y Rocha, MD
Gastroenterology
51 Years Exp | Batavia, NY
(11)
Dr. Erika Mandy Lee, MD
Gastroenterology
20 Years Exp | Englewood, CO
(1)

Which hospitals is Gareth Weiner affiliated with?: Gareth Weiner is affiliated with Platte Valley Medical Center.
How can I make an appointment with Gareth Weiner?: You can find contact information for Gareth Weiner here on Vitals.
Does Gareth Weiner accept my insurance?: You can see the insurance plans that Gareth Weiner accepts on their Vitals profile.
What languages does Gareth Weiner speak?: Gareth Weiner speaks English and Spanish.
Where is Gareth Weiner's office located?: Gareth Weiner's office is located at 10001N Washington St, Thornton, CO, 80229.

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