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