Nadim G. Haddad, MD| Gastroenterology, Pediatric Gastroenterology | MedStar Health
About me
Nadim Haddad, MD, is board certified in internal medicine and gastroenterology. Dr. Haddad serves as physician executive director and regional chief of the Department of Gastroenterology services at MedStar Georgetown University Hospital. Dr. Haddad sees adult patients for conditions affecting the gastrointestinal tract, such as pancreatic and bilary diseases, with a focus on cancer. In addition to adults, Dr. Haddad also attends to pediatric patients for upper gastrointestinal endoscopy.
Dr. Haddad's approach to care focuses on getting to know his patients treating the person, not a disease. His emphasizes hope when patients are facing a serious condition, such a cancer.
Dr. Haddad is also involved in research, focusing in the areas of pancreatic cancer and pancreatic cysts. He was instrumental in developing a pancreatic cyst registry that allows multiple academic medical centers and universities to collaborate and look at the role of molecular profiling.
In addition, Dr. Haddad is active in training the next generation of physicians as an associate professor at Georgetown University. As director of the Gastroenterology Fellowship Program, he was instrumental in it gaining full accreditation.
In his free time, Dr. Haddad is active in the Washington community, involved in his children's schools and with his church.
Clinical areas of focus
- Bile Duct Stones
- Colon Cancer
- Colonoscopy
- Colonoscopy With Injection
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Pancreatic Ductal System Catheterization
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Retrograde Cholangiopancreatography With Biopsy
- Endoscopic Retrograde Cholangiopancreatography With Calculi Destruction
- Gallstones
- Gastric Cancer
- Pancreatitis
- Rectal Cancer
- Sphincter Of Oddi Dysfunction
- Transrectal Ultrasound
Conditions and procedures
Conditions I treat
- Abdominal Distension
- Abdominal Pain
- Achalasia
- Acute Cholecystitis
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Anal Fissures
- Angiodysplasia
- Anus And Rectum Diseases
- Aphagia
- Aphagia And Dysphagia
- Appendiceal Cancer
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Bezoar
- Bile Duct Cancer
- Bile Duct Stones
- Biliary Tract Disease
- Bowel Obstruction
- Carcinoma In Situ Of Digestive Organs
- Celiac Disease
- Choledocholithiasis
- Colon Cancer
- Colon Disease
- Colon Polyp
- Colon Polyps
- Colonic Polyps
- Colorectal Malignancy
- Congenital Malformations Of Digestive System
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Cyclic Vomiting Syndrome
- 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
- Esophagitis
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallbladder Disease
- Gallstones
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- Hemorrhoids
- Hepatitis
- Hepatomegaly And Splenomegaly
- Hereditary Hemorrhagic Telangiectasia
- Inflammatory Bowel Disease
- Intestinal Infections
- Intussusception
- Irritable Bowel Syndrome
- Liver Cirrhosis
- Liver Failure
- Liver Fibrosis
- Malabsorption
- Malabsorption Syndrome
- Malignant Neuroendocrine Tumors
- Nausea
- Noninfective Gastroenteritis
- Pancreas Cancer
- Pancreatic Diseases
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Peptic Ulcer Disease
- Perianal Fistula
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Rectal Cancer
- Small Intestine Cancer
- Sphincter Of Oddi Dysfunction
- Stomach Cancer
- Stomach Ulcers
- Ulcerative Colitis
- Viral Hepatitis
- Volvulus
- Vomiting
- Zollinger
Procedures I perform
- Biliary Endoscopy With Calculus Removal
- Colonoscopy
- Colonoscopy With Injection
- Dilation Of Common Hepatic Duct
- Dilation Of Common Hepatic Duct With Stent
- Dilation Of Esophagus
- Endoscopic Biliary Ductal System Catheterization
- Endoscopic Diagnostic Common Bile Duct Excision
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Mucosal Resection
- Endoscopic Pancreatic Ductal System Catheterization
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Retrograde Cholangiopancreatography With Biopsy
- Endoscopic Retrograde Cholangiopancreatography With Calculi Destruction
- Endoscopic Retrograde Cholangiopancreatography With Calculi Removal
- Endoscopic Retrograde Cholangiopancreatography With Papilla Cannulation
- Enteroscopy
- Enteroscopy With Bleeding Control
- Flexible Colonoscopy With Biopsy
- Flexible Sigmoidoscopy With Biopsy
- Fluoroscopy Of Bile Ducts
- Fluoroscopy Of Stomach
- Gastrointestinal Motility Study
- Hepatobiliary Duct Inspection
- Lower Gi Endoscopy
- Rectal Stricture Dilation
- Sigmoidoscopy With Biopsy
- Transrectal Ultrasound
- Unlisted Biliary Tract Procedure
- Upper Esophagus Dilation, Endoscopic
- 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
- Aetna Managed Choice (POS)
- NYC Medicare Advantage Plus
- CareFirst EPO
- Aetna HMO
- Johns Hopkins Advantage MD PLUS PPO
- Mamsi Life & Health (Indem./PPO)
- Aetna Medicare Advantage PFFS Plan
- United Medicare Private Fee-for-Service (PFFS) plans
- Private Fee-for-Service Plans (PFFS)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Cigna True Choice Plus Medicare (PPO)
- IH-HMO
- CareFirst Administrators
- UnitedHealthcare and AARP Medicare Complete Plans
- Magellan Complete Care of VA - VA Medicaid MCO
- CareFirst Blue Choice Opt Out Open Access
- M.D. IPA (HMO)
- Cigna TotalCare (HMO D-SNP)
- HighMark
- Amerigroup DC Healthy Families
- CIGNA PPO
- Humana Medicare Advantage - HMO Open Access
- CIGNA EPO
- Coventry Health Care National Network PPO
- Employee Health Plan
- Aetna Classic 5000PD
- Select HMO/HealthFund/Health Network
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Medicare FFS
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CareFirst MedStar PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Aetna Quality Point of Service (POS)
- TRICARE East Select
- Aetna Advantage 6350PD
- M.D. IPA Preferred (POS)
- United Healthcare Community Plan - VA Medicaid MCO
- Kaiser Permanente Select Cardiac Global
- Choice POS II Open Access
- Kaiser Permanente Select - Added Choice
- United Healthcare Select HMO - EPO/NPP
- Aetna Advantage 5750
- WellPoint Maryland - Maryland Health Choice
- Advantra Platinum (PPO)
- United Student Resources
- Anthem BCBS of VA HealthKeepers Plus
- Humana Gold Plus HMO
- AMERIVANTAGE/Amerigroup Community Care
- United Healthcare Select Plus (POS)
- United HealthCare Community Plan - Maryland Health Choice Program
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- IH-EPO Plus
- Choice POS
- Aetna Classic 3500
- Lasso Healthcare - Medicare Medical Savings Account
- United Healthcare Navigate Cardiac Global
- Aetna Traditional Choice (PPO)
- Medicare Advantage - Advantra Value (PPO)
- Aetna Signature Administrator PPO/TPA
- AmeriHealth Caritas DC Healthy Families
- United Healthcare Choice Plus Cardiac Global
- Aetna VA Exchange
- United Healthcare Options (PPO)
- Choice POS II
- POS OA
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Alterwood Advanatge HMO & DSNP Plans
- Kaiser Permanente Medicare Advantage Signature and Select
- IH-Open HMO Option
- CIGNA Connect EPO
- Geisinger Medicare Advantage
- IH-Open EPO Plus
- Cigna Achieve Medicare (HMO C-SNP)
- Anthem BCBS Medi Blue SNP
- Tricare Reserve Select
- HumanaChoice Honor's plan PPO
- Erickson Advantage Plans
- United Healthcare Choice Plus
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Uniformed Services Family Health Plan
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Core Essential (HMO)
- Medicare Direct
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Healthy Blue (HMO, POS)
- CIGNA POS/Network POS
- Beech Street PPO
- Choice Fund PPO
- United Healthcare Choice Cardiac Global
- Aetna Open Choice (PPO)
- OA Plus
- OCI Direct (HMO)
- CareFirst Maryland Indemnity or PPO
- Aetna Basic
- Kaiser Permanente HMO Plus and DHMO Plus Member
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- IH-POS
- Kaiser Permanente Signature
- Coventry of Delaware HMO/PPO
- UHC Passport
- IH-PPO
- TRICARE for Life East
- IH-Indemnity
- Anthem Federal Employee Program Basic
- MultiPlan, Inc
- Optimum Choice
- IH-Network Only Plus
- United Healthcare Choice
- IH-Open POS II
- Amerigroup DC Alliance
- HealthyBlue PPO
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Maryland Physicians Care MCO
- Options PPO Cardiac Global
- Cigna True Choice Medicare (PPO)
- CareFirst Blue Card Program
- Kaiser Permanente Flexible Choice 3-tier POS
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Advantage 6350
- Aetna Managed Choice Open Access (POS)
- BlueChoice Open Access
- CareFirst Group Medicare Advantage
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- CareFirst Community Health Plan of MD
- Johns Hopkins Advantage MD PPO
- Kaiser Permanente Select
- CIGNA HMO Open Access
- IH-POS Plus
- CareFirst MedStar Select PPO
- Veterans Affairs Community Care Network
- IH-Open HMO
- Navigate
- CareFirst FEP Blue Focus
- CareFirst NASCO
- Aetna Better Health of VA
- Kaiser Permanente Medicare Plus
- Police and Fire Clinic
- TriWest Healthcare Alliance
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- CIGNA PPO Plus
- DC/MD SHOP QHP Small Business Plans
- Aetna Elect Choice/ Open Access (POS)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- IH-Open Network Only Plus
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CIGNA HMO & Network (HMO)
- Priority Partners - Maryland Health Choice
- Aetna Better Health of MD
- CareFirst BlueChoice HMO
- UnitedHealthcare Individual Exchange Plans
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- AmeriHealth Caritas DC Healthcare Alliance
- MedStar Family Choice - Maryland Health Choice
- Johns Hopkins Advantage MD HMO
- Network OA
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Great-West Healthcare POS/CIGNA
- Optimum Choice Preferred (POS)
- First Health PPO
- Jai Medical Systems - Maryland Health Choice
- Anthem BCBS Medi Blue Dual Adv
- MedStar Family Choice DC Healthy Families
- Private Health Care Systems (PPO)
- Blue Choice Advantage
- Aetna Student Health Insurance
- CareFirst Blue Preferred PPO
- Coventry Health Care of Virginia
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Anthem BCBS Medi Blue Plus
- CareFirst Maryland Point of Service Plan
- CIGNA SureFit (HMO)
- Aetna Classic 5000
- IH-Open POS Plus
- Kaiser Maryland Medicaid MCO
- MedStar Family Choice DC Healthcare Alliance
- HumanaChoice PPO
- Optima Family Care MCO - VA Medicaid MCO
- CareFirst (NCA) Indemnity
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Medicare Advantage HMO & PPO Plans
- Choice Care Network/HUMANA (PPO)
- Anthem Federal Employee Program Standard
- Sentara Health
- TRICARE East Prime
- Kaiser Permanente Signature - Added Choice
- CareFirst Dual Prime HMO-SNP
- Cigna Alliance Medicare (HMO)
- First Health PPO
- Cigna Preferred Medicare (HMO)
- Humana Medicare Advantage - PPO
- Aetna Premier 200PD
- Aetna Worker's Compensation Network
- CIGNA Indemnity
- Health Services for Children with Special Needs
Videos
Education
Fellowship: Georgetown University School of Medicine GME (1994)
Residency: Georgetown University School of Medicine GME (1991)
Medical School: Texas Tech University Health Science Center (1988)
Awards
- Washingtonian Top Doc 2025