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
- Inflammatory Bowel Disease (IBD) With Infection
- Sigmoidoscopy With Biopsy
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
- Viral Hepatitis
- Vomiting
- Vomiting Disorders
Procedures I perform
- 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
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
- Cigna True Choice Plus Medicare (PPO)
- CIGNA Indemnity
- Medicare Advantage - Advantra Value (PPO)
- CIGNA SureFit (HMO)
- Choice POS
- Police and Fire Clinic
- Kaiser Maryland Medicaid MCO
- Kaiser Permanente Signature - Added Choice
- Aetna Classic 3500
- Johns Hopkins Advantage MD HMO
- United Healthcare Select HMO - EPO/NPP
- Kaiser Permanente Flexible Choice 3-tier POS
- Cigna Alliance Medicare (HMO)
- CIGNA Connect EPO
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Uniformed Services Family Health Plan
- HumanaChoice PPO
- Aetna Classic 5000PD
- Tricare Reserve Select
- IH-EPO Plus
- First Health PPO
- AMERIVANTAGE/Amerigroup Community Care
- UnitedHealthcare Individual Exchange Plans
- United Healthcare Choice
- Aetna Classic 5000
- Geisinger Medicare Advantage
- Great-West Healthcare POS/CIGNA
- CareFirst Group Medicare Advantage
- Coventry Health Care of Virginia
- United Healthcare Choice Plus
- United Student Resources
- CIGNA POS/Network POS
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Optimum Choice Preferred (POS)
- Aetna Elect Choice/ Open Access (POS)
- Choice POS II
- IH-Open HMO Option
- Aetna Advantage 6350PD
- CareFirst Blue Card Program
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Mamsi Life & Health (Indem./PPO)
- Humana Gold Plus HMO
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Priority Partners - Maryland Health Choice
- United Healthcare Options (PPO)
- Humana Medicare Advantage - HMO Open Access
- Aetna Better Health of MD
- Aetna Quality Point of Service (POS)
- First Health PPO
- IH-Open HMO
- Private Fee-for-Service Plans (PFFS)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Aetna Open Choice (PPO)
- Maryland Physicians Care MCO
- CareFirst Maryland Indemnity or PPO
- Medicare Direct
- Jai Medical Systems - Maryland Health Choice
- CIGNA PPO
- M.D. IPA Preferred (POS)
- United HealthCare Community Plan - Maryland Health Choice Program
- CIGNA HMO Open Access
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Cigna TotalCare (HMO D-SNP)
- Aetna Better Health of VA
- IH-Open POS Plus
- Cigna True Choice Medicare (PPO)
- CareFirst (NCA) Indemnity
- Optimum Choice
- Anthem Federal Employee Program Basic
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- BlueChoice Open Access
- Anthem Federal Employee Program Standard
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Worker's Compensation Network
- WellPoint Maryland - Maryland Health Choice
- M.D. IPA (HMO)
- United Healthcare Community Plan - VA Medicaid MCO
- Kaiser Permanente Medicare Plus
- Private Health Care Systems (PPO)
- IH-Indemnity
- HumanaChoice Honor's plan PPO
- Aetna Signature Administrator PPO/TPA
- Aetna Medicare Advantage HMO & PPO Plans
- Navigate
- United Healthcare Choice Plus Cardiac Global
- MedStar Family Choice - Maryland Health Choice
- CIGNA PPO Plus
- Kaiser Permanente Select - Added Choice
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Managed Choice Open Access (POS)
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Kaiser Permanente Select Cardiac Global
- Choice Care Network/HUMANA (PPO)
- Healthy Blue (HMO, POS)
- CareFirst EPO
- CareFirst Blue Preferred PPO
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Veterans Affairs Community Care Network
- AmeriHealth Caritas DC Healthy Families
- Lasso Healthcare - Medicare Medical Savings Account
- POS OA
- Choice Fund PPO
- AmeriHealth Caritas DC Healthcare Alliance
- Anthem BCBS Medi Blue SNP
- Health Services for Children with Special Needs
- Employee Health Plan
- TRICARE East Prime
- Network OA
- Anthem BCBS of VA HealthKeepers Plus
- IH-POS Plus
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Beech Street PPO
- United Healthcare Choice Cardiac Global
- Erickson Advantage Plans
- Coventry of Delaware HMO/PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Anthem BCBS of VA HealthKeepers (HMO)
- Medicare FFS
- Humana Medicare Advantage - PPO
- CareFirst MedStar Select PPO
- Choice POS II Open Access
- IH-Open EPO Plus
- Kaiser Permanente Select
- CareFirst FEP Blue Focus
- Kaiser Permanente Flexible Choice POS Cardiac Global
- UHC Passport
- Sentara Health
- CareFirst Dual Prime HMO-SNP
- IH-POS
- Johns Hopkins Advantage MD PLUS PPO
- DC/MD SHOP QHP Small Business Plans
- NYC Medicare Advantage Plus
- MedStar Family Choice DC Healthy Families
- CareFirst Federal Employee Program (Std. & Basic PPO)
- UnitedHealthcare and AARP Medicare Complete Plans
- Amerigroup DC Alliance
- IH-HMO
- United Healthcare Select Plus (POS)
- CareFirst Community Health Plan of MD
- Aetna HMO
- IH-Open POS II
- IH-Network Only Plus
- Kaiser Permanente Signature
- Cigna Preferred Medicare (HMO)
- HealthyBlue PPO
- Aetna Medicare Advantage PFFS Plan
- OCI Direct (HMO)
- Aetna Premier 200PD
- MedStar Family Choice DC Healthcare Alliance
- Anthem BCBS Medi Blue Plus
- TRICARE East Select
- MultiPlan, Inc
- Kaiser Permanente Medicare Advantage Signature and Select
- Johns Hopkins Advantage MD PPO
- Aetna VA Exchange
- Aetna Basic
- Core Essential (HMO)
- OA Plus
- Cigna Achieve Medicare (HMO C-SNP)
- CareFirst Maryland Point of Service Plan
- Select HMO/HealthFund/Health Network
- CareFirst Administrators
- CareFirst BlueChoice HMO
- TRICARE for Life East
- HighMark
- Magellan Complete Care of VA - VA Medicaid MCO
- Coventry Health Care National Network PPO
- Blue Choice Advantage
- IH-Open Network Only Plus
- CareFirst NASCO
- United Healthcare Navigate Cardiac Global
- Anthem BCBS Medi Blue Dual Adv
- Amerigroup DC Healthy Families
- Aetna Student Health Insurance
- Aetna Advantage 5750
- Alterwood Advanatge HMO & DSNP Plans
- CareFirst Blue Choice Opt Out Open Access
- Aetna Advantage 6350
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- CIGNA HMO & Network (HMO)
- TriWest Healthcare Alliance
- United Medicare Private Fee-for-Service (PFFS) plans
- Aetna Traditional Choice (PPO)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- IH-PPO
- CIGNA EPO
- Advantra Platinum (PPO)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Options PPO Cardiac Global
- CareFirst MedStar PPO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Aetna Managed Choice (POS)
Videos
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