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Dr. Gregory McCarthy, MD
Gastroenterology* Age 77
Dr. Gregory McCarthy, MD

Offers telehealth

Dr. Gregory McCarthy, MD is a Gastroenterologist in Longmont, CO.
Dr. Gregory McCarthy, MD

Dr. Gregory McCarthy, MD

Gastroenterology* Age 77
Longmont, CO
Accepting new patients
35 years of experience

Offers telehealth

Dr. Gregory McCarthy, MD is a Gastroenterologist in Longmont, CO.
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About Dr. Gregory McCarthy, MD

Dr. McCarthy graduated from UNIVERSITY OF WISCONSIN / EAU CLAIRE. Dr. Gregory McCarthy, MD is a Gastroenterologist in Longmont, CO and has 35 years experience. Dr. McCarthy currently practices at Catholic Health Initiatives Colorado and is affiliated with Elliot Hospital and St. Joseph Hospital. Dr. McCarthy's office accepts new patients and telehealth appointments. Dr. McCarthy is board certified in Gastroenterology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Compare with other Gastroenterologists

Compare Dr. McCarthy with our nearby Gastroenterologists at CommonSpirit Longmont United Hospital
These providers are on the medical staff of CommonSpirit Longmont United Hospital
These providers are on the medical staff of CommonSpirit Longmont United Hospital.
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Experience Check

Enter a condition or procedure
Constipation
Abdominal Pain
Flexible Sigmoidoscopy
Constipation
Abdominal Pain
Flexible Sigmoidoscopy
Manometry
Rigid Proctosigmoidoscopy
Gas-Bloat Syndrome
Nausea
  • View other providers who treat Nausea
Intestinal Diverticulosis
Diaphragmatic and Hiatal Hernia
Gastroesophageal Reflux Disease (GERD)
Endoscopy
Noninfectious Gastroenteritis and Colitis
Unexplained Weight Loss
Colonoscopy
Duodenal Polypectomy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Gastritis
Diarrhea
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Anemia
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Dysphagia
Chronic Gastritis
Esophagitis
Irritable Bowel Syndrome
Hypokalemia
Reflux Esophagitis
Gastrointestinal Bleeding
Anal or Rectal Pain
Inflammatory Bowel Disease
Esophageal Ulcer
Gastroptosis
Colorectal Polyp
Hemorrhoids
Barrett's Esophagus
Malnutrition
Esophageal Motility Disorders
Gastric Ulcer
Intestinal Ulcer
Vomiting Disorders
Lactose Intolerance
Duodenitis
Acute Gastritis
Alcoholic Cirrhosis
Alcoholic Gastritis
Alcoholic Hepatic Failure
Alcoholic Hepatitis
Ascites
  • View other providers who treat Ascites
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Biliary Cirrhosis
Bowel Strangulation
Celiac Disease
Cirrhosis
Colon Cancer
Congenital Achalasia
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Copper Metabolism Disorders
Crohn's Disease
Dehydration
Diffuse Esophageal Spasm
Duodenal Cancer
Duodenal Ulcer
Dysentery
Enteritis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Atresia Without Fistula
Esophageal Varices
Familial Adenomatous Polyposis
Gallstones
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Heartburn
Hemochromatosis
Hepatitis B - Immune Response
Hepatitis C
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Ileus
  • View other providers who treat Ileus
Indigestion
Infectious Diarrheal Disease
Intestinal Diverticulitis
Intestinal Fistula
Intestinal Malabsorption Carbohydrate
Intestinal Obstruction
Ischemic Colitis
Liver Damage from Alcohol
Long COVID Disorder
Mallory-Weiss Syndrome
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Non-Neonatal Jaundice
Obstructed Inguinal Hernia
Pancreatitis
Peptic Ulcer
Primary Biliary Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Retroperitoneum Cancer
Sclerosing Mesenteritis
Splenomegaly
Ulcerative Colitis
Upper Digestive Tract Cancer
Viral Enteritis
Viral Hepatitis
Vitamin B12 Anemia
Vitamin_Deficiency
Anoscopy
  • View other providers who treat Anoscopy
Bile Duct Procedure
Colon Cancer Screening
Colorectal Cancer Screening
Fecal Impaction Removal
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Proctosigmoidoscopy
Screening Colonoscopy
Sigmoidoscopy
Ultrasound
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • First Health (Coventry Health Care) PPO
  • BlueCard PPO
  • Blue Priority PPO
    Blue Priority-CO HMO
    Colorado HMO
  • HealthyBlue Advantage
  • Elect Choice (Open Access) EPO
    Aetna HMO
    Whole Health Colorado Front Range
    Open Choice PPO
    Premier Care Network Plus - Innovation Health
    Managed Choice (Open Access) POS
  • MVP Health Plan EPO
  • Anthem Blue Cross Blue Shield PPO
  • Blue Choice Preferred Care PPO
  • Open Access Plus
    LocalPlus
    Cigna PPO
    Cigna HMO

Where Dr. Gregory McCarthy, MD Sees Patients

  1. 1 Catholic Health Initiatives Colorado
    2030 Mountain View Ave Ste 310, Longmont, CO 80501
  2. 2 Foundation Medical Partners Inc.
    168 Kinsley St, Nashua, NH 03060
  3. 3 Elliot Hospital
    1 Elliot Way, Manchester, NH 03103
  4. 4 Dartmouth-Hitchcock Manchester Laboratory
    100 Hitchcock Way, Manchester, NH 03104

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. McCarthy?
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(720) 652-8650

Meet Dr. Gregory McCarthy, MD

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. McCarthy communicate via email?
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Does Dr. McCarthy offer telehealth services or virtual visits?
1 user said yes.
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Does Dr. McCarthy offer an online patient portal?
2 users said yes.
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Does Dr. McCarthy have free onsite parking?
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Does Dr. McCarthy offer weekend visits?
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Does Dr. McCarthy offer evening visits?
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Does Dr. McCarthy specialize in working with children or adolescents?
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Does Dr. McCarthy specialize in working with seniors?
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Does Dr. McCarthy specialize in couples therapy?
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Does Dr. McCarthy specialize in working with LGBTQ+ community?
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Does Dr. McCarthy accept insurance?
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FAQs About Dr. McCarthy's Practice

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. Gregory McCarthy, MD. To arrange an appointment, call the number on Dr. McCarthy's profile.

Dr. Gregory McCarthy, MD is affiliated with Elliot Hospital and St. Joseph Hospital.

Yes, Dr. Gregory McCarthy, MD holds board certification in Gastroenterology and Internal Medicine.

Training & Medical Education
Medical Education
  • UNIVERSITY OF WISCONSIN / EAU CLAIRE
    1991
Medical Education
Board Certifications
  • Gastroenterology and Internal Medicine
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.

Hospitals Where Dr. Gregory McCarthy, MD Practices

  • Elliot Hospital

    1 Elliot Way, Manchester, NH

  • St. Joseph Hospital

    172 Kinsley St, Nashua, NH

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