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
- OCI Direct (HMO)
- IH-EPO Plus
- Humana Medicare Advantage - HMO Open Access
- Aetna Student Health Insurance
- CareFirst Maryland Indemnity or PPO
- IH-Indemnity
- Medicare Advantage - Advantra Value (PPO)
- IH-PPO
- HumanaChoice PPO
- Aetna Medicare Advantage PFFS Plan
- Aetna Managed Choice (POS)
- M.D. IPA Preferred (POS)
- Johns Hopkins Advantage MD PPO
- First Health 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
- Navigate
- HumanaChoice Honor's plan PPO
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Network OA
- Aetna Open Choice (PPO)
- Aetna Classic 5000
- CareFirst MedStar PPO
- Blue Choice Advantage
- Aetna Signature Administrator PPO/TPA
- Anthem BCBS of VA HealthKeepers Plus
- Advantra Platinum (PPO)
- HealthyBlue PPO
- Aetna Better Health of MD
- Aetna Medicare Advantage HMO & PPO Plans
- UnitedHealthcare Medicare Adv. Special Needs Plans
- UnitedHealthcare and AARP Medicare Complete Plans
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Geisinger Medicare Advantage
- MedStar Family Choice DC Healthcare Alliance
- Kaiser Permanente Select - Added Choice
- 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
- Cigna True Choice Plus Medicare (PPO)
- Cigna TotalCare (HMO D-SNP)
- CareFirst Administrators
- 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
- M.D. IPA (HMO)
- Anthem BCBS of VA HealthKeepers (HMO)
- Choice POS
- Alterwood Advanatge HMO & DSNP Plans
- Beech Street PPO
- CareFirst Maryland Point of Service Plan
- Aetna Traditional Choice (PPO)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Erickson Advantage Plans
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Coventry Health Care of Virginia
- Aetna Better Health of VA
- Aetna Basic
- Optimum Choice Preferred (POS)
- POS OA
- AmeriHealth Caritas DC Healthy Families
- Medicare FFS
- First Health PPO
- Lasso Healthcare - Medicare Medical Savings Account
- MultiPlan, Inc
- Cigna Preferred Medicare (HMO)
- CareFirst Community Health Plan of MD
- MedStar Family Choice - Maryland Health Choice
- Kaiser Permanente Flexible Choice 3-tier POS
- Johns Hopkins Advantage MD HMO
- Humana Gold Plus HMO
- IH-Open HMO
- Johns Hopkins Advantage MD PLUS PPO
- AMERIVANTAGE/Amerigroup Community Care
- Optimum Choice
- CIGNA POS/Network POS
- Private Health Care Systems (PPO)
- IH-Open POS Plus
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- CIGNA SureFit (HMO)
- Aetna Classic 5000PD
- HighMark
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- CIGNA Indemnity
- Anthem BCBS Medi Blue Plus
- Select HMO/HealthFund/Health Network
- Cigna Achieve Medicare (HMO C-SNP)
- Healthy Blue (HMO, POS)
- IH-HMO
- 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
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Coventry Health Care National Network PPO
- IH-Open Network Only Plus
- Choice POS II
- Anthem BCBS Medi Blue SNP
- CareFirst NASCO
- IH-Open HMO Option
- United Healthcare Choice Plus
- Health Services for Children with Special Needs
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Aetna Elect Choice/ Open Access (POS)
- Kaiser Permanente Select
- CareFirst Group Medicare Advantage
- CareFirst Dual Prime HMO-SNP
- Employee Health Plan
- CareFirst BlueChoice HMO
- CareFirst MedStar Select PPO
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- United Healthcare Community Plan - VA Medicaid MCO
- CareFirst Blue Card Program
- 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
- Kaiser Permanente Medicare Advantage Signature and Select
- CareFirst (NCA) Indemnity
- IH-Open POS II
- Mamsi Life & Health (Indem./PPO)
- Optima Family Care MCO - VA Medicaid MCO
- Cigna Alliance Medicare (HMO)
- Aetna Quality Point of Service (POS)
- OA Plus
- AmeriHealth Caritas DC Healthcare Alliance
- United Healthcare Options (PPO)
- United Healthcare Choice
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- CareFirst Blue Preferred PPO
- Aetna Premier 200PD
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Police and Fire Clinic
- Veterans Affairs Community Care Network
- CareFirst FEP Blue Focus
- CIGNA HMO Open Access
- Amerigroup DC Healthy Families
- Aetna Worker's Compensation Network
- DC/MD SHOP QHP Small Business Plans
- WellPoint Maryland - Maryland Health Choice
- CareFirst EPO
- IH-Network Only Plus
- Aetna VA Exchange
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Priority Partners - Maryland Health Choice
- Cigna True Choice Medicare (PPO)
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- TriWest Healthcare Alliance
- IH-POS
- Humana Medicare Advantage - PPO
- Tricare Reserve Select
- CareFirst Blue Choice Opt Out Open Access
- Anthem Federal Employee Program Basic
- IH-POS Plus
- United Healthcare Select Plus (POS)
- CIGNA PPO Plus
- Coventry of Delaware HMO/PPO
- MedStar Family Choice DC Healthy Families
- CIGNA Connect EPO
- Jai Medical Systems - Maryland Health Choice
- Core Essential (HMO)
- Kaiser Permanente Signature - Added Choice
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- UnitedHealthcare Individual Exchange Plans
- United Healthcare Select HMO - EPO/NPP
- TRICARE for Life East
- United Student Resources
- Private Fee-for-Service Plans (PFFS)
- Sentara Health
- Uniformed Services Family Health Plan
- TRICARE East Select
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Medicare Direct
- Maryland Physicians Care MCO
- Aetna HMO
- 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)