John Edward Carroll, MD| Gastroenterology | MedStar Health
About me
John E. Carroll, MD, is a Gastroenterologist at MedStar Georgetown University Hospital. Board certified in internal medicine and gastroenterology, Dr. Carroll has been at Georgetown for twenty-seven years. After graduating from medical school in Wisconsin, Dr. Carroll came to Georgetown for his internship in 1993, where he stayed and completed all of his postgraduate and specialty training. Dr. Carroll grew up in Chicago, and earned his degree in biomedical engineering at Marquette University.
Dr. Carroll did advanced training in endoscopic ultrasound (EUS) at Georgetown, and has been specializing in performing EUS procedures of the GI tract for 20 years. In addition to his interest in EUS procedures of the pancreas, stomach and biliary systems, Dr. Carroll also has extensive interest and expertise in treating disorders of the esophagus, such as Barrett’s esophagus and early invasive esophageal cancers. With the increasing advances in endoscopic technology which have developed in recent years, Dr. Carroll and his colleagues are routinely successfully curing early esophageal cancers endoscopically, which up until recently had required large surgeries to cure.
During his spare time Dr. Carroll enjoys skiing, sailing, travel, and following DC sports, in particular the Washington Nationals.
Hear from one of Dr. Carroll's patients:
Preventing Esophageal Cancer: Area Experts Treat Barrett's Esophagus
Clinical areas of focus
- Colon Biopsy
- Colonoscopy
- Enteroscopy
- Gastroesophageal Reflux Disease (GERD) In Children
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Lower Gi Endoscopy
- Rectal Biopsy
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Distension
- Abdominal Pain
- Abnormal Digestive Findings
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Altered Bowel Habits
- Anal Fissures
- Anus And Rectum Diseases
- Aphagia
- Aphagia And Dysphagia
- Appendiceal Cancer
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Bile Duct Stones
- Biliary Tract Disease
- Bowel Obstruction
- Celiac Disease
- Choledocholithiasis
- Chronic Diarrhea
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colorectal Malignancy
- Congenital Malformations Of Digestive System
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Diaphragmatic Hernia
- Digestive System Cancer
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Esophageal Cancer
- Esophageal Stricture
- Esophagitis
- External Hemorrhoids
- Flatulence
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallstones
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- Hemangioma
- Hematemesis
- Hemorrhoids
- Hepatitis
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Infectious Gastroenteritis
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Infections
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Liver Cirrhosis
- Liver Encephalopathy
- Liver Fibrosis
- Malabsorption
- Malignant Neuroendocrine Tumors
- Noninfective Gastroenteritis
- Pancreatic Diseases
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Postoperative Ileus
- Postprandial Diarrhea
- Rectal Pain
- Regional Enteritis
- Small Intestine Cancer
- Stomach Cancer
- Stomach Ulcers
- Ulcerative Colitis
- Viral Hepatitis
- Vomiting And Nausea
Procedures I perform
- Capsule Endoscopy
- Colon Biopsy
- Colonoscopy
- Colonoscopy Through Stoma With Biopsy
- Colonoscopy With Injection
- EGD With Biopsy
- EGD With Dilation
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Stomach Feeding Device Insertion
- Enteroscopy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Esophageal PH Monitoring
- Esophagogastroduodenoscopy With Tumor Ablation
- Flexible Colonoscopy With Biopsy
- Flexible Sigmoidoscopy With Biopsy
- Fluoroscopy Of Stomach
- Gastric Manometry
- Gastrointestinal Motility Study
- Gastrointestinal Neurological Disorders Treatment
- Gastrostomy
- Gastrostomy Tube Replacement
- Helicobacter Pylori Stool Test
- Liver Biopsy
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Mallory-Weiss Syndrome Treatment
- Rectal Biopsy
- Rectal Stricture Dilation
- Retrograde Cholangiopancreatography
- Sigmoidoscopy With Biopsy
- Stent Placement
- Transrectal Ultrasound
- Ulcerative Colitis-Associated Arthritis Treatment
- Ultrasonography Of Gastrointestinal Tract
- Upper Esophagus Dilation, Endoscopic
- Upper Gi Endoscopy
- Urea Breath Test
- Variceal Band Ligation
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- IH-EPO Plus
- OCI Direct (HMO)
- Aetna Student Health Insurance
- Humana Medicare Advantage - HMO Open Access
- IH-Indemnity
- CareFirst Maryland Indemnity or PPO
- IH-PPO
- Medicare Advantage - Advantra Value (PPO)
- HumanaChoice PPO
- Aetna Medicare Advantage PFFS Plan
- Aetna Managed Choice (POS)
- M.D. IPA Preferred (POS)
- First Health PPO
- Johns Hopkins Advantage MD PPO
- Anthem Federal Employee Program Standard
- Choice Fund PPO
- United Healthcare Navigate Cardiac Global
- United HealthCare Community Plan - Maryland Health Choice Program
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- HumanaChoice Honor's plan PPO
- Navigate
- Aetna Open Choice (PPO)
- Network OA
- Aetna Classic 5000
- Aetna Signature Administrator PPO/TPA
- Blue Choice Advantage
- CareFirst MedStar PPO
- Anthem BCBS of VA HealthKeepers Plus
- Advantra Platinum (PPO)
- Aetna Medicare Advantage HMO & PPO Plans
- Aetna Better Health of MD
- HealthyBlue PPO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- UnitedHealthcare and AARP Medicare Complete Plans
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Kaiser Permanente Select - Added Choice
- MedStar Family Choice DC Healthcare Alliance
- Geisinger Medicare Advantage
- Kaiser Permanente Medicare Plus
- Kaiser Maryland Medicaid MCO
- Magellan Complete Care of VA - VA Medicaid MCO
- Aetna Advantage 5750
- Aetna Advantage 6350
- Options PPO Cardiac Global
- Great-West Healthcare POS/CIGNA
- Amerigroup DC Alliance
- NYC Medicare Advantage Plus
- UHC Passport
- Kaiser Permanente Signature
- CareFirst Administrators
- Cigna TotalCare (HMO D-SNP)
- Cigna True Choice Plus Medicare (PPO)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Choice Care Network/HUMANA (PPO)
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- United Medicare Private Fee-for-Service (PFFS) plans
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CIGNA PPO
- CIGNA EPO
- Anthem BCBS of VA HealthKeepers (HMO)
- M.D. IPA (HMO)
- Choice POS
- Alterwood Advanatge HMO & DSNP Plans
- Beech Street PPO
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Aetna Traditional Choice (PPO)
- CareFirst Maryland Point of Service Plan
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Erickson Advantage Plans
- Aetna Basic
- Aetna Better Health of VA
- Coventry Health Care of Virginia
- Optimum Choice Preferred (POS)
- POS OA
- AmeriHealth Caritas DC Healthy Families
- First Health PPO
- Medicare FFS
- Lasso Healthcare - Medicare Medical Savings Account
- MultiPlan, Inc
- Cigna Preferred Medicare (HMO)
- CareFirst Community Health Plan of MD
- Kaiser Permanente Flexible Choice 3-tier POS
- MedStar Family Choice - Maryland Health Choice
- IH-Open HMO
- Humana Gold Plus HMO
- Johns Hopkins Advantage MD HMO
- AMERIVANTAGE/Amerigroup Community Care
- Johns Hopkins Advantage MD PLUS PPO
- Optimum Choice
- CIGNA POS/Network POS
- IH-Open POS Plus
- Private Health Care Systems (PPO)
- CIGNA SureFit (HMO)
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Aetna Classic 5000PD
- CIGNA Indemnity
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- HighMark
- Select HMO/HealthFund/Health Network
- Anthem BCBS Medi Blue Plus
- IH-HMO
- Healthy Blue (HMO, POS)
- Cigna Achieve Medicare (HMO C-SNP)
- TRICARE East Prime
- United Healthcare Choice Plus Cardiac Global
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- IH-Open EPO Plus
- Choice POS II Open Access
- BlueChoice Open Access
- Coventry Health Care National Network PPO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- IH-Open Network Only Plus
- Choice POS II
- Anthem BCBS Medi Blue SNP
- CareFirst NASCO
- IH-Open HMO Option
- Health Services for Children with Special Needs
- United Healthcare Choice Plus
- Aetna Elect Choice/ Open Access (POS)
- CareFirst Federal Employee Program (Std. & Basic PPO)
- CareFirst Group Medicare Advantage
- Kaiser Permanente Select
- CareFirst Dual Prime HMO-SNP
- CareFirst BlueChoice HMO
- Employee Health Plan
- CareFirst MedStar Select PPO
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- CareFirst Blue Card Program
- United Healthcare Community Plan - VA Medicaid MCO
- Kaiser Permanente Select Cardiac Global
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Aetna Classic 3500
- Anthem BCBS Medi Blue Dual Adv
- CIGNA HMO & Network (HMO)
- Aetna Advantage 6350PD
- United Healthcare Choice Cardiac Global
- IH-Open POS II
- CareFirst (NCA) Indemnity
- Kaiser Permanente Medicare Advantage Signature and Select
- Mamsi Life & Health (Indem./PPO)
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Quality Point of Service (POS)
- Cigna Alliance Medicare (HMO)
- OA Plus
- AmeriHealth Caritas DC Healthcare Alliance
- United Healthcare Choice
- United Healthcare Options (PPO)
- CareFirst Blue Preferred PPO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Aetna Premier 200PD
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Police and Fire Clinic
- CareFirst FEP Blue Focus
- Veterans Affairs Community Care Network
- Amerigroup DC Healthy Families
- CIGNA HMO Open Access
- Aetna Worker's Compensation Network
- DC/MD SHOP QHP Small Business Plans
- IH-Network Only Plus
- CareFirst EPO
- WellPoint Maryland - Maryland Health Choice
- Aetna VA Exchange
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Priority Partners - Maryland Health Choice
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Cigna True Choice Medicare (PPO)
- IH-POS
- TriWest Healthcare Alliance
- Humana Medicare Advantage - PPO
- Tricare Reserve Select
- IH-POS Plus
- Anthem Federal Employee Program Basic
- CareFirst Blue Choice Opt Out Open Access
- CIGNA PPO Plus
- United Healthcare Select Plus (POS)
- Coventry of Delaware HMO/PPO
- CIGNA Connect EPO
- MedStar Family Choice DC Healthy Families
- Jai Medical Systems - Maryland Health Choice
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Kaiser Permanente Signature - Added Choice
- Core Essential (HMO)
- United Healthcare Select HMO - EPO/NPP
- UnitedHealthcare Individual Exchange Plans
- TRICARE for Life East
- United Student Resources
- Uniformed Services Family Health Plan
- Sentara Health
- Private Fee-for-Service Plans (PFFS)
- TRICARE East Select
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna HMO
- Maryland Physicians Care MCO
- Medicare Direct
- Aetna Managed Choice Open Access (POS)
Videos
Education
Fellowship: Georgetown University School of Medicine GME (1999)
Residency: Georgetown University School of Medicine GME (1996)
Medical School: Medical College of Wisconsin (1993)