About me
Nikiya Asamoah, MD, is a board-certified adult gastroenterologist affiliated with MedStar Washington Hospital Center.
Dr. Asamoah specializes in treating digestive disorders, including inflammatory bowel diseases such as Crohn’s disease and Ulcerative Colitis. She also helps patients with general gastroenterology issues, such as nausea, vomiting, abdominal pain, diarrhea, and rectal bleeding. She performs diagnostic and therapeutic procedures, including hydrogen breath tests, video capsule endoscopy, esophageal dilations, upper endoscopy, and colonoscopy.
Dr. Asamoah’s clinical and research interests include chronic inflammatory conditions, primarily inflammatory bowel disease. Passionate about pediatric and adult gastroenterology care, Dr. Asamoah has a particular interest in the transition of care as children enter adulthood. She enjoys working alongside patients to help them understand the long-term risks of treatments and medications for their chronic inflammatory conditions.
Dr. Asamoah earned her medical degree from the University of Illinois College of Medicine. She then completed a combined internal medicine and pediatrics residency at Medical College of Wisconsin Affiliated Hospitals, followed by a gastroenterology fellowship at Loyola University Medical Center.
As a respected gastroenterologist, Dr. Asamoah is the recipient of the CCFA Visiting IBD Fellowship Award from the Crohn’s & Colitis Foundation of America and the Teaching and Tomorrow Program Grant from the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. Dr. Asamoah is also affiliated with many professional organizations, including the Crohn’s and Colitis Foundation, the American Gastroenterology Association, the American Society for Gastrointestinal Endoscopy, the American College of Physicians, and the American College of Gastroenterology, and the American Academy of Pediatrics.
When she’s not working, Dr. Asamoah enjoys jogging, traveling, and spending time with her terrier-mix, Lexa.
Philosophy of Care
“I’m focused on providing patient-centered care. I have heard many patients say that they know their bodies, and I trust that they do. It is my job to help correlate their symptoms and what they are feeling to disease processes to offer them the best treatment options. To help people most, it is important to build a strong patient-doctor relationship. I want my patients to feel comfortable with the care decisions that we make as a team. My goal is to treat the patient’s overall health so they can live their lives normally.”
Clinical areas of focus
- Colonoscopy
- Colonoscopy Through Stoma With Biopsy
- Crohn's Disease
- Endoscopy
- Enteroscopy
- Flexible Colonoscopy With Biopsy
- Gastroenteritis
- Gastrointestinal Biopsy
- Gastrointestinal Bleeding
- Ileoscopy With Biopsy
- Inflammatory Bowel Disease
- Sigmoidoscopy With Biopsy
- Ulcerative Colitis
Conditions and procedures
Conditions I treat
- Abdominal Pain
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- 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
- Biliary Tract Disease
- Biliary Tract Obstruction
- Bleeding Ulcer
- Blood In Stool
- Bowel Obstruction
- Celiac Disease
- Choledocholithiasis
- Chronic Diarrhea
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyp
- Colon Polyps
- Colonic Obstruction
- Colorectal Malignancy
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- 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
- Flatulence
- 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 Bleeding And Rectal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- H. Pylori Infection
- Hemorrhoids
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatomegaly And Splenomegaly
- Inflammatory Bowel Disease
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Infections
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Jaundice
- Liver Cirrhosis
- Liver Encephalopathy
- Liver Fibrosis
- Liver Function Tests Abnormal
- Malabsorption
- Malnutrition
- Nausea
- Noninfective Gastroenteritis
- Pancreatic Diseases
- Pancreatic Pseudocyst
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Perianal Fistula
- Perianal Itching
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Portal Hypertension
- Postoperative Ileus
- Rectal Cancer
- Rectal Pain
- Small Bowel Obstruction
- Small Intestine Cancer
- Stomach Cancer
- Stomach Diseases
- Stomach Ulcers
- Swallowing Disorders
- Ulcerative Colitis
- Vomiting
- Vomiting Disorders
Procedures I perform
- Abdominal Ultrasound
- Balloon Dilation
- Capsule Endoscopy
- Colonoscopy
- Colonoscopy Through Stoma With Biopsy
- Colonoscopy With Injection
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Stomach Feeding Device Insertion
- Endoscopic Submucosal Dissection
- Endoscopy
- Enteroscopy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Flexible Colonoscopy With Biopsy
- Gastric Stenting
- Gastroesophageal Reflux Test
- Gastrointestinal (GI) Treatment
- Gastrointestinal Ablation
- Gastrointestinal Biopsy
- Gastrointestinal Brushing
- Gastrointestinal Cancer Biopsy
- Gastrointestinal Embolization
- Gastrointestinal Fistula Biopsy
- Gastrointestinal Foreign Body Removal
- Gastrointestinal Hemorrhage Biopsy
- Gastrointestinal Laser Treatment
- Gastrointestinal Lesion Removal
- Gastrointestinal Lymph Node Biopsy
- Gastrointestinal Metastasis Biopsy
- Gastrointestinal Motility Study
- Gastrointestinal Mucosal Ablation
- Gastrointestinal Mucosal Biopsy
- Gastrointestinal Perforation Repair
- Gastrointestinal Photodynamic Therapy
- Gastrointestinal Polyp Biopsy
- Gastrointestinal Prosthesis Placement
- Gastrointestinal Resection
- Gastrointestinal Tract Access
- Gastrointestinal Tube Placement
- Gastrointestinal Tumor Biopsy
- Gastrointestinal Tumor Resection
- Gastrostomy Tube Replacement
- Hemorrhage Control
- Hydrogen Breath Test
- Ileoscopy With Biopsy
- Inflammatory Bowel Disease
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- PH Monitoring
- Rectal Stricture Dilation
- Sigmoidoscopy With Biopsy
- Stent Placement
- Transrectal Ultrasound
- Upper Esophagus Dilation, Endoscopic
- Upper Gi Endoscopy
Practice locations
Distance from Change Location Enter your Location
106 Irving St NW
POB South Ste 205
Washington, DC, 20010
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
- Health Services for Children with Special Needs
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- AmeriHealth Caritas DC Healthcare Alliance
- Humana Medicare Advantage - PPO
- NYC Medicare Advantage Plus
- Choice Fund PPO
- United Healthcare Choice Plus Cardiac Global
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Aetna Worker's Compensation Network
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna HMO
- TRICARE for Life East
- MultiPlan, Inc
- CareFirst MedStar PPO
- CareFirst Maryland Point of Service Plan
- CareFirst (NCA) Indemnity
- Kaiser Permanente Flexible Choice 3-tier POS
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Choice POS II
- Maryland Physicians Care MCO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-EPO Plus
- Amerigroup DC Alliance
- United Healthcare Choice
- Private Fee-for-Service Plans (PFFS)
- Aetna Advantage 6350PD
- CareFirst Maryland Indemnity or PPO
- Aetna Classic 3500
- MedStar Family Choice - Maryland Health Choice
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Coventry of Delaware HMO/PPO
- Aetna Classic 5000
- Aetna Basic
- Cigna True Choice Medicare (PPO)
- CIGNA Connect EPO
- United Medicare Private Fee-for-Service (PFFS) plans
- CIGNA PPO
- Private Health Care Systems (PPO)
- CIGNA PPO Plus
- IH-POS Plus
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Aetna Managed Choice Open Access (POS)
- Medicare Advantage - Advantra Value (PPO)
- IH-PPO
- Johns Hopkins Advantage MD PLUS PPO
- United Student Resources
- Advantra Platinum (PPO)
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Student Health Insurance
- CareFirst NASCO
- HighMark
- OA Plus
- Cigna Alliance Medicare (HMO)
- Johns Hopkins Advantage MD PPO
- Amerigroup DC Healthy Families
- IH-Open EPO Plus
- IH-Open Network Only Plus
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Coventry Health Care National Network PPO
- OCI Direct (HMO)
- Select HMO/HealthFund/Health Network
- AmeriHealth Caritas DC Healthy Families
- Police and Fire Clinic
- Humana Medicare Advantage - HMO Open Access
- Mamsi Life & Health (Indem./PPO)
- Coventry Health Care of Virginia
- HealthyBlue PPO
- CIGNA SureFit (HMO)
- Anthem Federal Employee Program Standard
- First Health PPO
- United Healthcare Select HMO - EPO/NPP
- Anthem BCBS Medi Blue Dual Adv
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CIGNA EPO
- Kaiser Permanente Select Cardiac Global
- United Healthcare Choice Cardiac Global
- TRICARE East Select
- TRICARE East Prime
- Core Essential (HMO)
- Optimum Choice
- Blue Choice Advantage
- Medicare Direct
- CIGNA Indemnity
- UnitedHealthcare Medicare Adv. Special Needs Plans
- United Healthcare Community Plan - VA Medicaid MCO
- CareFirst Blue Choice Opt Out Open Access
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- IH-HMO
- HumanaChoice Honor's plan PPO
- Aetna VA Exchange
- CareFirst Dual Prime HMO-SNP
- HumanaChoice PPO
- Erickson Advantage Plans
- Network OA
- Kaiser Permanente Signature
- United Healthcare Choice Plus
- Aetna Better Health of VA
- M.D. IPA (HMO)
- CareFirst Group Medicare Advantage
- Jai Medical Systems - Maryland Health Choice
- Kaiser Permanente Signature - Added Choice
- CareFirst EPO
- Choice POS II Open Access
- CIGNA HMO & Network (HMO)
- Aetna Quality Point of Service (POS)
- Kaiser Maryland Medicaid MCO
- United Healthcare Options (PPO)
- UnitedHealthcare Individual Exchange Plans
- Cigna TotalCare (HMO D-SNP)
- Sentara Health
- Kaiser Permanente Select
- Humana Gold Plus HMO
- Priority Partners - Maryland Health Choice
- IH-Open HMO Option
- Aetna Medicare Advantage HMO & PPO Plans
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Geisinger Medicare Advantage
- Aetna Medicare Advantage PFFS Plan
- Anthem BCBS Medi Blue SNP
- Optimum Choice Preferred (POS)
- United HealthCare Community Plan - Maryland Health Choice Program
- DC/MD SHOP QHP Small Business Plans
- Aetna Traditional Choice (PPO)
- IH-Open HMO
- Kaiser Permanente Medicare Advantage Signature and Select
- CareFirst BlueChoice HMO
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- UHC Passport
- IH-Network Only Plus
- Healthy Blue (HMO, POS)
- Kaiser Permanente Select - Added Choice
- Choice POS
- Anthem BCBS of VA HealthKeepers (HMO)
- BlueChoice Open Access
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- IH-Open POS II
- Choice Care Network/HUMANA (PPO)
- Tricare Reserve Select
- MedStar Family Choice DC Healthcare Alliance
- WellPoint Maryland - Maryland Health Choice
- Aetna Better Health of MD
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CareFirst FEP Blue Focus
- Uniformed Services Family Health Plan
- TriWest Healthcare Alliance
- Anthem Federal Employee Program Basic
- POS OA
- Veterans Affairs Community Care Network
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Aetna Elect Choice/ Open Access (POS)
- Aetna Classic 5000PD
- Aetna Signature Administrator PPO/TPA
- AMERIVANTAGE/Amerigroup Community Care
- Johns Hopkins Advantage MD HMO
- CIGNA POS/Network POS
- CIGNA HMO Open Access
- Cigna Preferred Medicare (HMO)
- MedStar Family Choice DC Healthy Families
- Navigate
- Aetna Premier 200PD
- First Health PPO
- Optima Family Care MCO - VA Medicaid MCO
- IH-POS
- Employee Health Plan
- Aetna Managed Choice (POS)
- Anthem BCBS Medi Blue Plus
- CareFirst MedStar Select PPO
- IH-Open POS Plus
- Options PPO Cardiac Global
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- United Healthcare Select Plus (POS)
- Medicare FFS
- Anthem BCBS of VA HealthKeepers Plus
- CareFirst Administrators
- Aetna Advantage 6350
- CareFirst Federal Employee Program (Std. & Basic PPO)
- United Healthcare Navigate Cardiac Global
- CareFirst Community Health Plan of MD
- Cigna Achieve Medicare (HMO C-SNP)
- Kaiser Permanente Medicare Plus
- CareFirst Blue Preferred PPO
- Great-West Healthcare POS/CIGNA
- Lasso Healthcare - Medicare Medical Savings Account
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Cigna True Choice Plus Medicare (PPO)
- Alterwood Advanatge HMO & DSNP Plans
- Aetna Open Choice (PPO)
- IH-Indemnity
- CareFirst Blue Card Program
- Beech Street PPO
- M.D. IPA Preferred (POS)
- Aetna Advantage 5750
- Magellan Complete Care of VA - VA Medicaid MCO
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Fellowship: Loyola University Medical Center (2017)
Residency: Medical College of Wisconsin (2014)
Medical School: University Of Illinois College Of Medicine At Chicago (2010)
Awards
- Washingtonian Top Doc 2025