ME
Accepting patients
Who is Dr. Ellis, Gastroenterologist in Knoxville, TN?
Dr. Michael Ellis, MD is a Gastroenterologist, who primarily practices in Knoxville, TN with 1 additional practice location. Dr. Ellis is fluent in English, and is currently seeing new patients. Dr. Ellis’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ellis’s office at (865) 859-7330.
What languages does Dr. Ellis speak?
Dr. Ellis and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Ellis typically treat?
As a Gastroenterologist, Dr. Ellis 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. Ellis. 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.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
What procedures does a Gastroenterologist like Dr. Ellis typically perform?
As a Gastroenterologist, Dr. Ellis 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. Ellis. 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.
Also known as:
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Does Dr. Ellis accept my insurance?
Dr. Ellis accepts most major insurance plans. Important: Please call our office at (865) 859-7330 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ellis accept in Knoxville, TN?
Dr. Ellis in Knoxville, TN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross Blue Shield of Michigan
Cigna Group
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Medicare
Unknown
View All Insurances
Where is Dr. Ellis' office located?
What is Dr. Ellis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ellis's National Provider Identifier (NPI) number is 1386681310.
What common questions do patients ask about Dr. Ellis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ellis
What is Dr. Michael Ellis's specialty?
Dr. Ellis is a Gastroenterologist near Knoxville, TN.
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. Michael Ellis affiliated with a ranked Castle Connolly Top Hospital?
No, Ellis is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Middlesboro Arh Hospital. Castle Connolly Top Hospitals 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 Michael Ellis accepting new patients in Knoxville, TN?
Yes, Dr. Michael Ellis is accepting new patients at this time.
Does Dr. Michael Ellis offer online booking?
Please contact Dr. Ellis's office at (865) 859-7330 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Michael Ellis?
Please contact Dr. Ellis's office at (865) 859-7330 for information regarding telehealth appointment availability or for scheduling assistance.
Other Gastroenterologist Near Knoxville, TN

Gastroenterologist
Dr. Siva Maran, MD is a Gastroenterologist, who primarily practices in Knoxville, TN with 2 additional practice locations.
Knoxville, TN
CK
Gastroenterologist
Dr. Christopher Kulisek, MD is a Gastroenterologist, who primarily practices in Lenoir City, TN with 1 additional practice location. He is board certified.
Lenoir City, TN
MB
Gastroenterologist
Dr. Morris Barocas, MD is a Gastroenterologist, who primarily practices in Knoxville, TN. He has been practicing for over 37 years and is board certified.
Knoxville, TN