36 Years of Experience
Who is Dr. Alexander, Gastroenterologist in Nashville, TN?
Castle Connolly Top Doctor
Castle Connolly Top Doctors are doctor-nominated and selected by a physician-led research team.
What are Areas of Expertise for Dr. Alexander?
Dr. William Alexander, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Alexander empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Endoscopy, Gastroesophageal Reflux Disease (GERD), Pancreatic/Biliary Endoscopy (ERCP), Peptic Ulcer Disease, and comprehensive wellness support. Serving the Nashville, TN community, Dr. Alexander is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Alexander go to medical school and complete their residency?
Residency: Univ Fl Affil Hosps, Gastroenterology; Univ Of Al Hosp, Internal Medicine | University of Florida Program
Medical School: University Of Nc At Chapel Hill Sch Of Med- Chapel Hill Nc | Physician Assistant Studies, Barry University, FL
Is Dr. Alexander board certified as a Gastroenterologist?
Yes, Dr. William Alexander, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Alexander speak?
Dr. Alexander and their clinical team can communicate with patients in the following languages:
- English
- French
- Spanish
What conditions does a Gastroenterologist like Dr. Alexander typically treat?
As a Gastroenterologist, Dr. Alexander 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. Alexander. 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:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
What procedures does a Gastroenterologist like Dr. Alexander typically perform?
As a Gastroenterologist, Dr. Alexander 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. Alexander. 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
- Colonoscopy with Polyp Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Flexible Colonoscopy with Biopsy
- Colorectal Polyp Removal
- Hot Biopsy Colonoscopy
CPT Codes:
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45384: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by hot biopsy forceps
Also known as:
- Esophagus Widening Procedure (Endoscopic)
- Diagnostic Upper Endoscopy with Biopsy
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 43235: Esophagogastroduodenoscopy, flexible, transoral; 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. Alexander accept my insurance?
Dr. Alexander accepts most major insurance plans. Important: Please contact the office before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Alexander accept in Nashville, TN?
Dr. Alexander in Nashville, TN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Tennessee
Centene Corporation
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Humana
Medicare
Oscar Health
UnitedHealth Group
View All Insurances
Where is Dr. Alexander's office located?
What hospitals are Dr. Alexander affiliated with?
Dr. Alexander has admitting privileges at the following hospitals:
What is Dr. Alexander's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Alexander's National Provider Identifier (NPI) number is 1609848738.
What common questions do patients ask about Dr. Alexander?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Alexander