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Dr. Gareth Weiner, MD
Gastroenterology* Age 63
Dr. Gareth Weiner, MD
5.0 (1 Ratings)
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Dr. Gareth Weiner, MD is a Gastroenterologist in Thornton, CO.
Dr. Gareth Weiner, MD
5.0 (1 Ratings)
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Dr. Gareth Weiner, MD

Gastroenterology* Age 63
Thornton, CO
Accepting new patients
Dr. Gareth Weiner, MD is a Gastroenterologist in Thornton, CO.

About

Dr. Weiner graduated from University of Colorado and completed a residency at St Joseph Hospital - Exempla. Dr. Gareth Weiner, MD is a Gastroenterologist in Thornton, CO. Dr. Weiner currently practices at Rocky Mountain Gastroenterology Associates - Thornton and is affiliated with HCA HealthONE Rose and HCA HealthONE Mountain Ridge. Dr. Weiner has experience treating conditions like Hemorrhoids, Constipation, Congenital Anomaly Esophagus and Esophageal Motility Disorders among other conditions at varying frequencies. Dr. Weiner's office accepts new patients. Dr. Weiner is board certified in Gastroenterology and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Hemorrhoids
Constipation
Congenital Anomaly Esophagus
Hemorrhoids
Constipation
Congenital Anomaly Esophagus
Esophageal Motility Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Colorectal Polyp
Chronic Gastritis
Heartburn
Endoscopy
Dysphagia
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Gastritis
Intestinal Diverticulosis
Duodenal Polypectomy
Nausea
  • View other providers who treat Nausea
Colonoscopy
Gastrointestinal Bleeding
Esophageal Ulcer
Rigid Proctosigmoidoscopy
Manometry
Flexible Sigmoidoscopy
Esophagitis
Abdominal Pain
Reflux Esophagitis
Noninfectious Gastroenteritis and Colitis
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Eosinophilic Esophagitis
Gastroesophageal Reflux Disease (GERD)
Intestinal Ulcer
Inflammatory Bowel Disease
Vomiting Disorders
Anemia
  • View other providers who treat Anemia
Duodenitis
Gastroptosis
Liver Biopsy
Barrett's Esophagus
Gallstones
Ulcerative Colitis
Crohn's Disease
Indigestion
Hemorrhoidectomy or Excision of Anal Tags
Esophageal Varices
Liver Damage from Alcohol
Irritable Bowel Syndrome
Hypokalemia
Gastric Ulcer
Intestinal Obstruction
Unexplained Weight Loss
Cirrhosis
Duodenal Ulcer
Dehydration
Alcoholic Cirrhosis
Abdominal Disorders
Acid Reflux
Acute Gastritis
Alcoholic Gastritis
Alcoholic Hepatic Failure
Alcoholic Hepatitis
Anal or Rectal Pain
Anal Sphincter Dysplasia
Ascites
  • View other providers who treat Ascites
Autoimmune Diseases
Autoimmune Hepatitis
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Benign Tumor
Bile Duct Obstruction
Biliary Atresia
Blood Disorders
Celiac Disease
Cholangitis
Cholecystitis and Gallstones
Colon Cancer
Colorectal Cancer
Congenital Achalasia
Cyclical Vomiting
Diffuse Esophageal Spasm
Digestive Disorders
Diverticulitis
Diverticulosis
Duodenal Cancer
Dysentery
Enteritis
Esophageal Achalasia and Cardiospasm
Esophageal Diseases
Esophageal Diverticulum
Familial Adenomatous Polyposis
Folate Deficiency Anemia
Gas-Bloat Syndrome
Gastrointestinal Diseases
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Hemochromatosis
Hepatitis
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hiatal Hernia with Obstruction
Ileus
  • View other providers who treat Ileus
Impacted Shoulders
Infectious Diarrheal Disease
Intestinal Diverticulitis
Intestinal Fistula
Intestinal Malabsorption Carbohydrate
Intestinal Prolapse
Ischemic Colitis
Lactose Intolerance
Liver Diseases and Disorders
Mallory-Weiss Syndrome
Malnutrition
Megacolon
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pancreatic Disease
Pancreatic Pseudocyst
Pancreatitis
Pelvic Abscess
Peptic Ulcer
Pernicious Anemia
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Pyloric Stenosis
Rectal Ulcer
Retroperitoneum Cancer
Splenomegaly
Stomach Diseases
Ulcer
  • View other providers who treat Ulcer
Upper Digestive Tract Cancer
Vascular Insufficiency of Intestines
Viral Enteritis
Viral Hepatitis
Vitamin B12 Anemia
Vitamin_Deficiency
Bile Duct Procedure
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Gastroenterology Procedures
Hemorrhoid Banding
Impedance Testing
Laparoscopic Removal of Stones from Biliary Tract
Pancreas Surgeries
Proctosigmoidoscopy
Sigmoidoscopy
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Aetna
    Managed Choice (Open Access)
    Open Choice
    Premier Care Network Plus - Innovation Health
    Whole Health Colorado Front Range
  • First Health (Coventry Health Care)
  • Anthem Blue Cross Blue Shield
  • Options
    Nexus Open Access
    Navigate
    Navigate Plus
    Choice Plus
  • Blue Card High Performance Network HPN
    BlueCard Traditional
  • Kaiser Permanente
  • Choice
  • Choice Care (Humana)
  • National
  • HealthyBlue Advantage
  • Cigna
    SureFit
    Open Access Plus
    LocalPlus

Locations

  1. 1 Rocky Mountain Gastroenterology Associates - Thornton
    10001 Washington St, Thornton, CO 80229
    Monday
    08:00 - 17:00
    Tuesday
    08:00 - 17:00
    Wednesday
    08:00 - 17:00
    Thursday
    08:00 - 17:00
    Friday
    08:00 - 17:00
  2. 2 Rocky Mountain Gastroenterology Associates - Denver
    4500 E 9th Ave Ste 560, Denver, CO 80220
    Monday
    08:00 - 17:00
    Tuesday
    08:00 - 17:00
    Wednesday
    08:00 - 17:00
    Thursday
    08:00 - 17:00
    Friday
    08:00 - 17:00

Patient Satisfaction

Likelihood to recommend Dr. Weiner
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Jan 20, 2026
All the staff were warm and efficient. They got me in and out with no delays.
— Jan 20, 2026
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About Me

Specialties*
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Weiner communicate via email?
12 users said yes.
Yes
(12)
No
(6)
Does Dr. Weiner offer telehealth services or virtual visits?
6 users said yes.
Yes
(6)
No
(7)
Does Dr. Weiner offer an online patient portal?
21 users said yes.
Yes
(21)
No
(3)
Does Dr. Weiner have free onsite parking?
33 users said yes.
Yes
(33)
No
(1)
Does Dr. Weiner offer weekend visits?
3 users said yes.
Yes
(3)
No
(10)
Does Dr. Weiner offer evening visits?
5 users said yes.
Yes
(5)
No
(10)
Does Dr. Weiner specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Weiner specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Weiner specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Weiner specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Weiner accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Gareth Weiner, MD. To arrange an appointment, call the number on Dr. Weiner's profile.

Dr. Weiner frequently treats the following conditions: Hemorrhoids, Constipation, Congenital Anomaly Esophagus and Esophageal Motility Disorders. See more on Sharecare.

Dr. Gareth Weiner, MD is affiliated with HCA HealthONE Rose and HCA HealthONE Mountain Ridge.

Yes, Dr. Gareth Weiner, MD holds board certification in Gastroenterology.

Education
Medical Education
  • University of Colorado
Medical Education
Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Residency Hospital
  • St Joseph Hospital - Exempla
Residency Hospital
Fellowship Hospital
  • University of Colorado
Fellowship Hospital

Hospital Affiliations

  • HCA HealthONE Rose

    4567 E 9th Ave, Denver, CO

  • HCA HealthONE Mountain Ridge

    9191 Grant St, Thornton, CO

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