44 Years of Experience
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lewis, Gastroenterologist in Washington, DC?
Dr. James Lewis is a Gastroenterologist, who primarily practices in Washington, DC with 1 additional practice location. He has been practicing for over 44 years and is board certified. Dr. Lewis graduated from University at Buffalo State University of New York School of Medicine & Biomedical Sciences and completed his residency at Geo Washington Univ Hosp, Gastroenterology; Kings County Hosp Ctr, Internal Medicine; Baylor Coll Of Med, Internal Medicine. Dr. Lewis is fluent in English, and is currently seeing new patients. Dr. Lewis’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lewis’s office at (202) 444-8541.
Where did Dr. Lewis go to medical school and complete their residency?
Residency: Geo Washington Univ Hosp, Gastroenterology; Kings County Hosp Ctr, Internal Medicine; Baylor Coll Of Med, Internal Medicine | SUNY Brooklyn Kings Co Hospital | George Washington University Program A
Medical School: Suny-Hlth Sci Ctr At Brooklyn, Coll of Med, Brooklyn Ny | SUNY Downstate Medical Center College Of Medicine | University at Buffalo State University of New York School of Medicine & Biomedical Sciences
Is Dr. Lewis board certified as a Gastroenterologist?
Yes, Dr. James Lewis is board certified by the American Board of Internal Medicine
What languages does Dr. Lewis speak?
Dr. Lewis and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Lewis typically treat?
As a Gastroenterologist, Dr. Lewis diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Lewis. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.
Also known as:
- Chronic Hepatitis B
- Hepatitis B
- Long-term Hepatitis B
- Persistent Hepatitis B
- Hep B
- Hepatitis B virus
- HBV infection
ICD-10 Codes:
- B181: Chronic viral hepatitis B without delta-agent
- B1910: Unspecified viral hepatitis B without hepatic coma
Also known as:
- Fatty Liver Disease
- Other specified liver Disease
- Liver Disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NAFLD
- NASH
- Hepatic steatosis
- Uncommon liver conditions
- Rare liver diseases
- Specific liver disorders
ICD-10 Codes:
- K760: Fatty (change of) liver, not elsewhere classified
- K7689: Other specified diseases of liver
Also known as:
- Other Abnormal Enzyme Levels
- Unspecified high enzymes
- Various enzyme abnormalities
- Abnormal serum enzyme levels
ICD-10 Codes:
- R748: Abnormal levels of other serum enzymes
Also known as:
- Cirrhosis
- Liver scarring
- End-stage liver disease
- Chronic liver failure
ICD-10 Codes:
- K7460: Unspecified cirrhosis of liver
Also known as:
- Nonalcoholic steatohepatitis (NASH)
- Fatty Liver Disease
- Non-alcoholic fatty liver disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NASH
- Non-alcoholic fatty liver disease with inflammation
- Fatty liver inflammation
ICD-10 Codes:
- K7581: Nonalcoholic steatohepatitis (NASH)
Also known as:
- Autoimmune hepatitis
- Autoimmune Disease
- Hepatitis
- Autoimmune Hepatitis
- AIH
- Autoimmune liver disease
- Chronic autoimmune hepatitis
ICD-10 Codes:
- K754: Autoimmune hepatitis
What procedures does a Gastroenterologist like Dr. Lewis typically perform?
As a Gastroenterologist, Dr. Lewis performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Lewis. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.
Also known as:
- Liver Biopsy (Needle)
- Percutaneous liver biopsy
- Needle liver sample
- Liver tissue biopsy
- Liver needle aspiration
CPT Codes:
- 47000: Biopsy of liver, needle; percutaneous
Does Dr. Lewis accept my insurance?
Dr. Lewis accepts most major insurance plans. Important: Please call our office at (202) 444-8541 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lewis accept in Washington, DC?
Dr. Lewis in Washington, DC accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
BCBS Unspecified
CareFirst BlueCross BlueShield
Cigna Group
CVS Health (formerly Aetna)
District of Columbia
Federal government of the United States
Medicare
Mutual of Omaha
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Lewis' office located?
Dr. James Lewis' Primary Practice
3800 Reservoir Rd NW
Washington, DC 20007
(202) 444-8541
What is Dr. Lewis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lewis's National Provider Identifier (NPI) number is 1396745212.
What common questions do patients ask about Dr. Lewis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lewis
What is Dr. James Lewis's specialty?
Dr. Lewis is a Gastroenterologist near Washington, DC.
What does a Gastroenterologist do?
An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs.
Is this Dr. James Lewis affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lewis is affiliated with Medstar St. Mary's Hospital, Medstar Washington Hospital Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Gastroenterologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is James Lewis accepting new patients in Washington, DC?
Yes, Dr. James Lewis is accepting new patients at this time.
Does Dr. James Lewis offer online booking?
Please contact Dr. Lewis's office at (202) 444-8541 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with James Lewis?
Please contact Dr. Lewis's office at (202) 444-8541 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. James Lewis have?
Dr. James Lewis is certified by the American Board of Internal Medicine.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>