Ghassan Abdullah Alzayer, MD| Gastroenterology | MedStar Health
About me
Dr. Alzayer treats patients with all conditions of the gastrointestinal tract. He has a special interest in esophageal diseases and disorders, including gastroesophageal reflux (GERD), Barrett’s esophagus, eosinophilic esophagitis, esophageal strictures, motility disorders.
He uses a variety of diagnostic and treatment procedures including endoscopy, colonoscopy, endoscopic dilation, PEG tube (feeding tube) placement, capsule endoscopy, esophageal PH testing, and high-resolution manometry. Dr. Alzayer is highly experienced in the use of colonoscopy for the removal of polyps, including advanced polyps.
Dr. Alzayer works with each patient to understand the root cause of their symptoms and make an accurate diagnosis. When appropriate, he employs conservative treatment options, like lifestyle changes and pharmacological treatments, to help improve symptoms, before recommending more invasive treatment options.
Dr. Alzayer’s approach to treatment focuses on whole patient care. He listens to his patients in order to understand the root cause of their symptoms and provides a treatment plan tailored to their specific needs that aligns with their treatment goals.
Dr. Alzayer received his medical degree from University of Dammam College of Medicine in Saudi Arabia, where he served as a resident, teaching assistant, and clinical instructor in the Department of Internal Medicine. He then completed his residency training in internal medicine at Baystate Medical Center/University of Massachusetts, in Springfield, Massachusetts, where he served as chief resident. Finally, he completed a gastroenterology fellowship at Medstar Georgetown University Hospital.
He is a member of the American Society for Gastrointestinal Endoscopy, the American Gastrointestinal Association, and the American College of Gastroenterology.
Dr. Alzayer is fluent in English and Arabic.
Clinical areas of focus
- Capsule Endoscopy
- Colonoscopy With Biopsy
- Diverticular Disease
- Diverticulitis
- Endoscopy
- Enteroscopy With Bleeding Control
- Gastric Manometry
- Gastroesophageal Reflux Disease (GERD) In Children
- Intestinal Dysmotility
- Irritable Bowel Syndrome
- Lower Gi Endoscopy
- Sigmoidoscopy With Biopsy
- Stomach Ulcers
- Upper Gi Endoscopy
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Distension
- Abdominal Pain
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Altered Bowel Habits
- Anal Abscess
- 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
- Carcinoma In Situ Of Digestive Organs
- Celiac Disease
- Choledocholithiasis
- Chronic Constipation
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colonic Diverticulosis
- Colonoscopy
- Colorectal Malignancy
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Diabetic Gastroparesis
- Diaphragmatic Hernia
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Diverticular Disease
- Diverticulitis
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Esophageal Cancer
- Esophageal Hernia
- Esophageal Stricture
- Esophagitis
- External Hemorrhoids
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallbladder Disease
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- H. Pylori Infection
- Hemangioma
- Hepatitis
- Hepatitis B
- Hepatitis C
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Intestinal Dysmotility
- Intestinal Infections
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Jaundice
- Lactose Intolerance
- Liver Cirrhosis
- Liver Failure
- Liver Fibrosis
- Lower Esophageal Sphincter Dysfunction
- Malabsorption
- Malignant Neuroendocrine Tumors
- Noninfective Gastroenteritis
- Pancreatic Diseases
- Paralytic Ileus And Intestinal Obstruction
- Perianal Fistula
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Portal Hypertension
- Postprandial Diarrhea
- Primary Sclerosing Cholangitis (PSC)
- Rectal Cancer
- Rectal Pain
- Small Intestine Cancer
- Stomach Cancer
- Stomach Ulcers
- Swallowing Disorders
- Ulcerative Colitis
- Viral Hepatitis
- Vomiting And Nausea
Procedures I perform
- Capsule Endoscopy
- Colonoscopy
- Colonoscopy Through Stoma
- Colonoscopy With Biopsy
- Colonoscopy With Injection
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Stomach Feeding Device Insertion
- Endoscopy
- Enteroscopy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Esophageal PH Monitoring
- Esophagogastroduodenoscopy With Biopsy
- Flexible Colonoscopy With Biopsy
- Gastric Manometry
- Gastroesophageal Reflux Test
- Gastrointestinal Motility Study
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Sigmoidoscopy With Biopsy
- Transrectal Ultrasound
- Upper Gi Endoscopy
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
- POS OA
- Choice POS II
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Johns Hopkins Advantage MD PLUS PPO
- Cigna TotalCare (HMO D-SNP)
- Kaiser Permanente Signature - Added Choice
- TriWest Healthcare Alliance
- CareFirst Blue Choice Opt Out Open Access
- CareFirst BlueChoice HMO
- Aetna Managed Choice Open Access (POS)
- IH-PPO
- Beech Street PPO
- Veterans Affairs Community Care Network
- Health Services for Children with Special Needs
- OA Plus
- IH-Network Only Plus
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Anthem BCBS Medi Blue Plus
- HumanaChoice PPO
- AmeriHealth Caritas DC Healthy Families
- Aetna Open Choice (PPO)
- IH-HMO
- United Healthcare Choice Plus
- Aetna Medicare Advantage PFFS Plan
- M.D. IPA (HMO)
- Kaiser Permanente Medicare Plus
- M.D. IPA Preferred (POS)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Anthem Federal Employee Program Basic
- IH-Indemnity
- Aetna Advantage 5750
- MultiPlan, Inc
- Anthem BCBS Medi Blue Dual Adv
- Aetna Student Health Insurance
- United Healthcare Choice
- Aetna Signature Administrator PPO/TPA
- Private Health Care Systems (PPO)
- Choice Fund PPO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- CIGNA POS/Network POS
- Blue Choice Advantage
- Aetna VA Exchange
- CareFirst Group Medicare Advantage
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Elect Choice/ Open Access (POS)
- Optimum Choice
- Humana Medicare Advantage - HMO Open Access
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Cigna True Choice Plus Medicare (PPO)
- Cigna Achieve Medicare (HMO C-SNP)
- United Healthcare Select HMO - EPO/NPP
- HighMark
- Humana Medicare Advantage - PPO
- Anthem BCBS of VA HealthKeepers Plus
- Medicare Advantage - Advantra Value (PPO)
- UHC Passport
- IH-Open Network Only Plus
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Managed Choice (POS)
- IH-EPO Plus
- MedStar Family Choice - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers (HMO)
- IH-Open POS Plus
- Aetna Better Health of MD
- BlueChoice Open Access
- DC/MD SHOP QHP Small Business Plans
- Aetna Medicare Advantage HMO & PPO Plans
- Options PPO Cardiac Global
- Magellan Complete Care of VA - VA Medicaid MCO
- OCI Direct (HMO)
- Humana Gold Plus HMO
- CareFirst Administrators
- Sentara Health
- Kaiser Maryland Medicaid MCO
- HumanaChoice Honor's plan PPO
- Aetna Worker's Compensation Network
- Choice Care Network/HUMANA (PPO)
- United Healthcare Community Plan - VA Medicaid MCO
- Great-West Healthcare POS/CIGNA
- CareFirst Blue Card Program
- WellPoint Maryland - Maryland Health Choice
- IH-Open HMO
- MedStar Family Choice DC Healthy Families
- CareFirst (NCA) Indemnity
- Employee Health Plan
- CIGNA HMO & Network (HMO)
- United HealthCare Community Plan - Maryland Health Choice Program
- Erickson Advantage Plans
- CIGNA PPO
- Aetna Better Health of VA
- Navigate
- Coventry Health Care of Virginia
- Kaiser Permanente Signature
- CareFirst Dual Prime HMO-SNP
- AmeriHealth Caritas DC Healthcare Alliance
- Aetna Premier 200PD
- Johns Hopkins Advantage MD HMO
- NYC Medicare Advantage Plus
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst EPO
- Choice POS II Open Access
- Private Fee-for-Service Plans (PFFS)
- CareFirst Blue Preferred PPO
- United Healthcare Select Plus (POS)
- CIGNA SureFit (HMO)
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- IH-Open POS II
- Optima Family Care MCO - VA Medicaid MCO
- CareFirst Maryland Indemnity or PPO
- Kaiser Permanente Select Cardiac Global
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Aetna HMO
- Tricare Reserve Select
- Cigna Alliance Medicare (HMO)
- CareFirst Maryland Point of Service Plan
- United Healthcare Choice Plus Cardiac Global
- AMERIVANTAGE/Amerigroup Community Care
- Aetna Traditional Choice (PPO)
- Mamsi Life & Health (Indem./PPO)
- CareFirst FEP Blue Focus
- MedStar Family Choice DC Healthcare Alliance
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- IH-Open EPO Plus
- Cigna Preferred Medicare (HMO)
- IH-POS Plus
- Maryland Physicians Care MCO
- United Healthcare Options (PPO)
- United Healthcare Navigate Cardiac Global
- Anthem Federal Employee Program Standard
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Network OA
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- First Health PPO
- CareFirst MedStar Select PPO
- Medicare FFS
- Anthem BCBS Medi Blue SNP
- Aetna Classic 3500
- Lasso Healthcare - Medicare Medical Savings Account
- First Health PPO
- Healthy Blue (HMO, POS)
- Aetna Basic
- United Medicare Private Fee-for-Service (PFFS) plans
- TRICARE East Select
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Amerigroup DC Alliance
- Coventry of Delaware HMO/PPO
- CIGNA Indemnity
- Aetna Advantage 6350
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Alterwood Advanatge HMO & DSNP Plans
- TRICARE for Life East
- Geisinger Medicare Advantage
- Kaiser Permanente Select - Added Choice
- Kaiser Permanente Select
- Cigna True Choice Medicare (PPO)
- Police and Fire Clinic
- Aetna Classic 5000PD
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Aetna Quality Point of Service (POS)
- Optimum Choice Preferred (POS)
- UnitedHealthcare Individual Exchange Plans
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- TRICARE East Prime
- Choice POS
- IH-POS
- Core Essential (HMO)
- CareFirst NASCO
- Jai Medical Systems - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- IH-Open HMO Option
- CIGNA Connect EPO
- CareFirst MedStar PPO
- CIGNA EPO
- Amerigroup DC Healthy Families
- United Healthcare Choice Cardiac Global
- Kaiser Permanente Medicare Advantage Signature and Select
- CareFirst Community Health Plan of MD
- Johns Hopkins Advantage MD PPO
- United Student Resources
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CIGNA PPO Plus
- Coventry Health Care National Network PPO
- Aetna Classic 5000
- Aetna Advantage 6350PD
- HealthyBlue PPO
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Priority Partners - Maryland Health Choice
- Select HMO/HealthFund/Health Network
- CIGNA HMO Open Access
- Medicare Direct
- Uniformed Services Family Health Plan
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Advantra Platinum (PPO)
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Fellowship: MedStar Georgetown University Hospital (2021)
Residency: Baystate Medical Center (2018)
Medical School: King Faisal University (2010)