Katherine Murphy, MBBCH MD| Gastroenterology | MedStar Health
About me
Dr. Murphy is a board-certified, fellowship-trained gastroenterologist who treats patients with the full range of gastrointestinal conditions, including colon cancer screening, gastroesophageal reflux disease (GERD), dysphagia (difficulty swallowing), constipation, and diarrhea.
She is a member of the American College of Physicians, American Gastroenterology Association, American College of Gastroenterology, and American Society of Gastrointestinal Endoscopy.
Dr. Murphy earned her medical degree from the Royal College of Surgeons in Ireland and completed her residency at Pennsylvania Hospital, University of Pennsylvania Health System in Philadelphia. She also completed a fellowship in gastroenterology at MedStar Georgetown University Hospital, Washington, D.C.
Her philosophy of care is focused on using evidence-based medicine to develop thoughtful, compassionate, individualized treatment for every patient.
When she’s not working, Dr. Murphy enjoys travelling and spending time with her family, friends, and dog.
Clinical areas of focus
- Chronic Constipation
- Colon Cancer
- Colon Polyps
- Digestive System Diseases
- Dysphagia
Conditions and procedures
Conditions I treat
- Abdominal Pain
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Anus And Rectum Diseases
- Aphagia And Dysphagia
- Barrett's Esophagus
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Blood In Stool
- Bowel Obstruction
- Chronic Constipation
- Chronic Diarrhea
- Colitis
- Colon Cancer
- Colon Polyps
- Crohn's Disease
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Diverticulitis
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Epigastric Pain
- Esophageal Cancer
- Esophageal Stricture
- Esophagitis
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Disease
- Gallstones
- Gastric Cancer
- Gastritis
- Gastrointestinal Bleeding
- Helicobacter Pylori
- Hemorrhoids
- Malabsorption
- Melena
- Nausea
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Peptic Ulcer Disease
- Perianal Fistula
- Postprandial Diarrhea
- Proctitis
- Rectal Cancer
- Rectal Pain
- Regional Enteritis
- Small Intestine Cancer
- Stomach Cancer
- Stomach Cramps
- Stomach Ulcers
- Ulcerative Colitis
- Vomiting
Procedures I perform
- Capsule Endoscopy
- Celiac Disease Treatment
- Colonoscopy Through Stoma
- Colonoscopy With Biopsy
- Diarrhea Treatment
- Dilation Of Esophagus
- Endoscopic Mucosal Resection
- Enteroscopy
- Esophageal Dilation
- Esophagogastroduodenoscopy With Biopsy
- Flexible Colonoscopy With Biopsy
- Gastrointestinal Biopsy
- Gastrointestinal Foreign Body Removal
- Gastrostomy
- Hydrogen Breath Test
- Intestinal Biopsy
- Irritable Bowel Syndrome Treatment
- Lower Gi Endoscopy
- Pancreatitis Treatment
- Sigmoidoscopy With Biopsy
- Stomach Pain Treatment
- Swallowing Disorder Treatment
- Upper Endoscopy
- 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
- CareFirst Administrators
- Cigna Alliance Medicare (HMO)
- Core Essential (HMO)
- Aetna HMO
- Aetna Managed Choice (POS)
- Kaiser Permanente Signature - Added Choice
- HighMark
- Aetna Signature Administrator PPO/TPA
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Anthem BCBS Medi Blue SNP
- CIGNA HMO Open Access
- Aetna Better Health of VA
- Options PPO Cardiac Global
- Beech Street PPO
- CareFirst Blue Preferred PPO
- POS OA
- IH-HMO
- Aetna Better Health of MD
- TRICARE East Select
- Aetna Medicare Advantage HMO & PPO Plans
- OA Plus
- CIGNA Connect EPO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- UnitedHealthcare and AARP Medicare Complete Plans
- United Healthcare Choice
- Aetna Premier 200PD
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- IH-POS Plus
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CareFirst Dual Prime HMO-SNP
- Private Fee-for-Service Plans (PFFS)
- AmeriHealth Caritas DC Healthy Families
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Johns Hopkins Advantage MD HMO
- Medicare FFS
- CareFirst Community Health Plan of MD
- MultiPlan, Inc
- CareFirst Group Medicare Advantage
- CIGNA HMO & Network (HMO)
- Aetna Advantage 6350PD
- Choice Care Network/HUMANA (PPO)
- Lasso Healthcare - Medicare Medical Savings Account
- IH-Open Network Only Plus
- Blue Choice Advantage
- Kaiser Permanente Select
- Private Health Care Systems (PPO)
- Coventry Health Care National Network PPO
- Kaiser Maryland Medicaid MCO
- Kaiser Permanente Medicare Plus
- Optimum Choice
- UnitedHealthcare Medicare Adv. Special Needs Plans
- UHC Passport
- Aetna VA Exchange
- CIGNA POS/Network POS
- Humana Medicare Advantage - PPO
- Navigate
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- CareFirst NASCO
- Johns Hopkins Advantage MD PPO
- TRICARE for Life East
- IH-Network Only Plus
- CareFirst (NCA) Indemnity
- Cigna Achieve Medicare (HMO C-SNP)
- MedStar Family Choice DC Healthcare Alliance
- CIGNA PPO Plus
- Aetna Open Choice (PPO)
- IH-EPO Plus
- United Healthcare Select Plus (POS)
- Veterans Affairs Community Care Network
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Classic 3500
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CIGNA SureFit (HMO)
- United Healthcare Options (PPO)
- United Healthcare Choice Cardiac Global
- Aetna Classic 5000
- Aetna Traditional Choice (PPO)
- Cigna TotalCare (HMO D-SNP)
- Jai Medical Systems - Maryland Health Choice
- Aetna Medicare Advantage PFFS Plan
- Aetna Advantage 6350
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Kaiser Permanente Medicare Advantage Signature and Select
- United Healthcare Select HMO - EPO/NPP
- UnitedHealthcare Individual Exchange Plans
- United Medicare Private Fee-for-Service (PFFS) plans
- Geisinger Medicare Advantage
- CareFirst Maryland Point of Service Plan
- Maryland Physicians Care MCO
- Anthem Federal Employee Program Standard
- United Healthcare Choice Plus Cardiac Global
- IH-Open POS II
- Select HMO/HealthFund/Health Network
- Aetna Quality Point of Service (POS)
- Humana Medicare Advantage - HMO Open Access
- Coventry of Delaware HMO/PPO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Healthy Blue (HMO, POS)
- Choice POS II
- Kaiser Permanente Flexible Choice 3-tier POS
- Mamsi Life & Health (Indem./PPO)
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Humana Gold Plus HMO
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Elect Choice/ Open Access (POS)
- CIGNA Indemnity
- Cigna True Choice Medicare (PPO)
- CareFirst BlueChoice HMO
- Kaiser Permanente Select - Added Choice
- Choice POS II Open Access
- IH-POS
- CareFirst FEP Blue Focus
- Erickson Advantage Plans
- Anthem BCBS Medi Blue Plus
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- MedStar Family Choice - Maryland Health Choice
- IH-PPO
- Cigna Preferred Medicare (HMO)
- United Healthcare Community Plan - VA Medicaid MCO
- HealthyBlue PPO
- M.D. IPA (HMO)
- CareFirst EPO
- HumanaChoice PPO
- United Healthcare Navigate Cardiac Global
- IH-Open HMO Option
- Tricare Reserve Select
- IH-Indemnity
- DC/MD SHOP QHP Small Business Plans
- CareFirst MedStar Select PPO
- HumanaChoice Honor's plan PPO
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Advantra Platinum (PPO)
- BlueChoice Open Access
- CIGNA PPO
- Cigna True Choice Plus Medicare (PPO)
- Employee Health Plan
- AmeriHealth Caritas DC Healthcare Alliance
- Sentara Health
- Medicare Advantage - Advantra Value (PPO)
- First Health PPO
- Choice POS
- Great-West Healthcare POS/CIGNA
- TRICARE East Prime
- Kaiser Permanente HMO Plus and DHMO Plus Member
- United HealthCare Community Plan - Maryland Health Choice Program
- Aetna Basic
- CareFirst Blue Choice Opt Out Open Access
- CareFirst Maryland Indemnity or PPO
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CareFirst Blue Card Program
- WellPoint Maryland - Maryland Health Choice
- Amerigroup DC Healthy Families
- IH-Open HMO
- CareFirst MedStar PPO
- Priority Partners - Maryland Health Choice
- Coventry Health Care of Virginia
- United Healthcare Choice Plus
- OCI Direct (HMO)
- NYC Medicare Advantage Plus
- AMERIVANTAGE/Amerigroup Community Care
- Aetna Managed Choice Open Access (POS)
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Anthem BCBS of VA HealthKeepers Plus
- Anthem Federal Employee Program Basic
- M.D. IPA Preferred (POS)
- Anthem BCBS of VA HealthKeepers (HMO)
- Network OA
- Kaiser Permanente Signature
- Aetna Student Health Insurance
- Uniformed Services Family Health Plan
- Magellan Complete Care of VA - VA Medicaid MCO
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Alterwood Advanatge HMO & DSNP Plans
- CIGNA EPO
- Amerigroup DC Alliance
- MedStar Family Choice DC Healthy Families
- Police and Fire Clinic
- United Student Resources
- Medicare Direct
- First Health PPO
- Health Services for Children with Special Needs
- Johns Hopkins Advantage MD PLUS PPO
- Aetna Advantage 5750
- Kaiser Permanente Select Cardiac Global
- Choice Fund PPO
- Aetna Classic 5000PD
- Aetna Worker's Compensation Network
- Anthem BCBS Medi Blue Dual Adv
- TriWest Healthcare Alliance
- IH-Open EPO Plus
- IH-Open POS Plus
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Optimum Choice Preferred (POS)
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Fellowship: Georgetown University School of Medicine GME (2025)
Residency: Pennsylvania Hospital (2022)
Medical School: Royal College of Physicians & Surgeons-Ireland (2019)