Marc Lyle Kozam, MD| Gastroenterology | MedStar Health
About me
Dr. Kozam is a board certified, fellowship trained gastroenterologist who has served the Olney community for two decades. His areas of special interest and expertise include gastrointestinal motility disorders (conditions that affect the nerves and muscles of the gastrointestinal tract). He evaluates and treats gastrointestinal conditions including:
- Abdominal pain
- Unintentional weight loss
- Colon cancer prevention
- Gastroesophageal reflux
- Gastrointestinal bleeding
- Hepatitis B and C
- Metabolic dysfunction-associated steatotic liver disease (MASLD) and metabolic dysfunction-associated steatohepatitis (MASH), formerly called fatty liver disease
- Irritable bowel syndrome (IBS)
- Inflammatory bowel disease (IBD)
- Nausea and vomiting
- Trouble swallowing
Dr. Kozam has performed thousands of diagnostic and therapeutic endoscopic procedures such as esophagogastroduodenoscopy and colonoscopy. He is skilled in a range of options for obtaining biopsies, controlling bleeding, removal of polyps, and management of strictures.
Dr. Kozam has been recognized by President Bill Clinton for his care of veterans at the Washington VA Medical Center and Washingtonian magazine has listed him as a top gastroenterologist in the Washington region.
He earned his medical degree from the University of Alabama School of Medicine in Birmingham, Alabama and completed his residency at the University of Maryland Medical Center in Baltimore. Dr. Kozam completed a fellowship in gastroenterology at MedStar Georgetown University Hospital.
Over the years, he has served in many roles within Medstar Health and continues to lead at Medstar Montgomery Medical Center as physician chair of Pharmacy and Therapeutics, as well as the Quality, Safety, and Professional Affairs Committee.
When caring for patients, he focuses on building caring, collaborative relationships by learning about their goals, judiciously using diagnostic tests such as endoscopic procedures, and providing information so that they can better understand their conditions. He strives to empower them to advance their gastrointestinal wellness through diet, lifestyle, and medications, and collaboration with other specialists.
Clinical areas of focus
- Gastrointestinal Motility Disorders
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Hernia
- Abdominal Pain
- Alimentary Tract Foreign Body
- Anal Fissures
- Anus And Rectum Diseases
- Aphagia And Dysphagia
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Bowel Obstruction
- Colon Cancer
- Colon Disease
- Colonic Polyps
- Constipation
- Crohn's Disease
- 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
- Esophageal Cancer
- Esophageal Hernia
- Esophageal Stricture
- Esophagitis
- Functional Dyspepsia
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding And Rectal Bleeding
- Gastrointestinal Motility Disorders
- Hemorrhoids
- Hepatitis
- Hepatomegaly And Splenomegaly
- Inflammatory Bowel Disease (IBD) With Infection
- Irritable Bowel Syndrome
- Liver Cirrhosis
- Liver Fibrosis
- Noninfective Gastroenteritis
- Pancreatitis
- Peptic Ulcer Disease
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Rectal Cancer
- Small Intestine Diseases
- Stomach Ulcers
- Swallowing Disorders
- Ulcerative Colitis
Procedures I perform
- Bleeding Ulcer Treatment
- Capsule Endoscopy
- Colonoscopy
- Colonoscopy Through Stoma
- Dilation Of Esophagus
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Stomach Feeding Device Insertion
- Endoscopic Submucosal Dissection
- Endoscopy With Biopsy
- Enteroscopy
- Enteroscopy With Bleeding Control
- Fecal Microbiota Transplant
- Flexible Colonoscopy With Biopsy
- Gastrointestinal Angiodysplasia Treatment
- Gastrointestinal Complication Prevention
- Gastrointestinal Condition Management
- Gastrointestinal Disease Prevention
- Gastrointestinal Foreign Body Removal
- Gastrointestinal Functional Disorder Treatment
- Gastrointestinal Health Maintenance
- Gastrointestinal Health Screening
- Gastrointestinal Infection Treatment
- Gastrointestinal Lesion Removal
- Gastrointestinal Motility Study
- Gastrointestinal Nutrition Counseling
- Gastrointestinal Quality Of Life Improvement
- Gastrointestinal Risk Factor Assessment
- Gastrointestinal Vascular Malformation Treatment
- Genitourinary Fistula Treatment
- Hydrogen Breath Test
- Irritable Bowel Syndrome Treatment
- Lactose Tolerance Test
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Rectal Stricture Dilation
- Stent Placement
- Transrectal Ultrasound
- Ulcerative Colitis-Associated Arthritis Treatment
- Upper Gi Endoscopy
- 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
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Choice POS II Open Access
- United Healthcare Choice Plus
- Anthem Federal Employee Program Standard
- Aetna Classic 5000PD
- Coventry Health Care National Network PPO
- Anthem BCBS Medi Blue Dual Adv
- Magellan Complete Care of VA - VA Medicaid MCO
- M.D. IPA Preferred (POS)
- MedStar Family Choice - Maryland Health Choice
- CIGNA EPO
- Aetna Advantage 6350
- Cigna Alliance Medicare (HMO)
- CIGNA HMO & Network (HMO)
- Medicare Advantage - Advantra Value (PPO)
- Private Fee-for-Service Plans (PFFS)
- United Healthcare Options (PPO)
- United Healthcare Select Plus (POS)
- Blue Choice Advantage
- OA Plus
- BlueChoice Open Access
- NYC Medicare Advantage Plus
- CareFirst Dual Prime HMO-SNP
- CareFirst Administrators
- Amerigroup DC Healthy Families
- Johns Hopkins Advantage MD PLUS PPO
- Anthem Federal Employee Program Basic
- Great-West Healthcare POS/CIGNA
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Coventry Health Care of Virginia
- Aetna HMO
- Jai Medical Systems - Maryland Health Choice
- Veterans Affairs Community Care Network
- United Healthcare Community Plan - VA Medicaid MCO
- Medicare Direct
- CIGNA PPO
- CareFirst Maryland Point of Service Plan
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CareFirst EPO
- HumanaChoice PPO
- Coventry of Delaware HMO/PPO
- United Healthcare Choice Plus Cardiac Global
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- DC/MD SHOP QHP Small Business Plans
- IH-Open HMO
- Aetna Medicare Advantage HMO & PPO Plans
- MultiPlan, Inc
- Kaiser Maryland Medicaid MCO
- First Health PPO
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Kaiser Permanente Medicare Advantage Signature and Select
- HumanaChoice Honor's plan PPO
- Select HMO/HealthFund/Health Network
- HealthyBlue PPO
- TRICARE for Life East
- Humana Medicare Advantage - HMO Open Access
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- United Student Resources
- Geisinger Medicare Advantage
- Aetna Managed Choice Open Access (POS)
- Maryland Physicians Care MCO
- Optima Family Care MCO - VA Medicaid MCO
- Humana Medicare Advantage - PPO
- United Healthcare Navigate Cardiac Global
- Kaiser Permanente Select
- IH-PPO
- Beech Street PPO
- IH-Open EPO Plus
- IH-POS Plus
- Options PPO Cardiac Global
- Uniformed Services Family Health Plan
- CareFirst NASCO
- Aetna Better Health of MD
- United Medicare Private Fee-for-Service (PFFS) plans
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Quality Point of Service (POS)
- IH-HMO
- United HealthCare Community Plan - Maryland Health Choice Program
- OCI Direct (HMO)
- IH-Indemnity
- Priority Partners - Maryland Health Choice
- Aetna Signature Administrator PPO/TPA
- Erickson Advantage Plans
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CIGNA SureFit (HMO)
- Aetna Advantage 6350PD
- Police and Fire Clinic
- IH-Open POS Plus
- IH-Open Network Only Plus
- UnitedHealthcare Individual Exchange Plans
- Choice Fund PPO
- WellPoint Maryland - Maryland Health Choice
- Cigna True Choice Plus Medicare (PPO)
- IH-POS
- Network OA
- CareFirst (NCA) Indemnity
- CIGNA POS/Network POS
- CareFirst Group Medicare Advantage
- Choice Care Network/HUMANA (PPO)
- Aetna VA Exchange
- Alterwood Advanatge HMO & DSNP Plans
- Anthem BCBS Medi Blue Plus
- CIGNA Connect EPO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Kaiser Permanente Select Cardiac Global
- Johns Hopkins Advantage MD PPO
- TRICARE East Select
- Aetna Basic
- AmeriHealth Caritas DC Healthcare Alliance
- Amerigroup DC Alliance
- Aetna Better Health of VA
- Humana Gold Plus HMO
- CareFirst Blue Card Program
- UnitedHealthcare and AARP Medicare Complete Plans
- Navigate
- CareFirst BlueChoice HMO
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- UHC Passport
- Employee Health Plan
- CIGNA PPO Plus
- Optimum Choice
- Optimum Choice Preferred (POS)
- IH-Network Only Plus
- MedStar Family Choice DC Healthcare Alliance
- Kaiser Permanente Signature - Added Choice
- Cigna Preferred Medicare (HMO)
- Aetna Worker's Compensation Network
- CIGNA Indemnity
- CIGNA HMO Open Access
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Premier 200PD
- Kaiser Permanente Flexible Choice 3-tier POS
- Cigna True Choice Medicare (PPO)
- Lasso Healthcare - Medicare Medical Savings Account
- United Healthcare Select HMO - EPO/NPP
- AmeriHealth Caritas DC Healthy Families
- Tricare Reserve Select
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Private Health Care Systems (PPO)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Aetna Traditional Choice (PPO)
- Choice POS II
- Advantra Platinum (PPO)
- Aetna Elect Choice/ Open Access (POS)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CareFirst Community Health Plan of MD
- Kaiser Permanente Signature
- Aetna Managed Choice (POS)
- IH-EPO Plus
- CareFirst Blue Preferred PPO
- CareFirst MedStar Select PPO
- CareFirst FEP Blue Focus
- M.D. IPA (HMO)
- Mamsi Life & Health (Indem./PPO)
- United Healthcare Choice
- Healthy Blue (HMO, POS)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CareFirst Maryland Indemnity or PPO
- TRICARE East Prime
- HighMark
- Cigna Achieve Medicare (HMO C-SNP)
- Aetna Open Choice (PPO)
- Health Services for Children with Special Needs
- Anthem BCBS of VA HealthKeepers Plus
- Cigna TotalCare (HMO D-SNP)
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-Open POS II
- Choice POS
- Aetna Classic 5000
- Core Essential (HMO)
- MedStar Family Choice DC Healthy Families
- Aetna Medicare Advantage PFFS Plan
- Aetna Advantage 5750
- Sentara Health
- Kaiser Permanente Select - Added Choice
- Aetna Student Health Insurance
- United Healthcare Choice Cardiac Global
- TriWest Healthcare Alliance
- Aetna Classic 3500
- POS OA
- Medicare FFS
- CareFirst MedStar PPO
- AMERIVANTAGE/Amerigroup Community Care
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- IH-Open HMO Option
- Kaiser Permanente Medicare Plus
- Johns Hopkins Advantage MD HMO
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- First Health PPO
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- CareFirst Blue Choice Opt Out Open Access
- Anthem BCBS Medi Blue SNP
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Fellowship: MedStar Georgetown University Hospital (1996)
Residency: University of Maryland Medical Center (1994)
Medical School: University of Alabama School of Medicine (1991)