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Dr. Ernest Williams, MD

Dr. Ernest Williams, MD

Oxford, MS

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Williams, Gastroenterologist in Oxford, MS?

    Dr. Ernest Williams, MD is a Gastroenterologist, who primarily practices in Oxford, MS with 1 additional practice location. He is board certified by the American Board of Internal Medicine. Dr. Williams graduated from University of Mississippi School of Medicine and completed his residency at Med Univ Sc Coll Of Med, Gastroenterology. Dr. Williams is fluent in English, and is currently seeing new patients. Dr. Williams’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Williams’s office at (662) 234-9888.

    Where did Dr. Williams go to medical school and complete their residency?

    • Residency: Med Univ Sc Coll Of Med, Gastroenterology | Med University Sc College Of Med | Medical University of South Carolina Program

    • Medical School: University of Ms Sch of Med, Jackson Ms | University of Mississippi School of Medicine

    Is Dr. Williams board certified in Gastroenterologist?

    Yes, Dr. Ernest Williams, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Williams speak?

    Dr. Williams and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Williams treat?

    As a Gastroenterologist, Dr. Williams 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. Williams. 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.

    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:

    • Chronic Stomach Inflammation
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Chronic gastritis
    • Long-term stomach inflammation
    • Persistent stomach lining inflammation

    ICD-10 Codes:

    • K2950: Unspecified chronic gastritis without bleeding

    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:

    • Follow-up After Treatment (Non-Cancer)
    • Post-Treatment Check-up
    • Aftercare Visit
    • Recovery Monitoring Exam

    ICD-10 Codes:

    • Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

    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

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Change in Bowel Habits
    • Bowel Movement
    • Altered Bowel Habits
    • Irregular Bowel Movements
    • Changes in Pooping

    ICD-10 Codes:

    • R194: Change in bowel habit

    What procedures does Dr. Williams perform?

    As a Gastroenterologist, Dr. Williams 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. Williams. 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.

    Also known as:

    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Balloon Dilation
    • Colonoscopy with Hemorrhoid Ligation
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Flexible Colonoscopy with Biopsy
    • Colorectal Polyp Removal
    • Hot Biopsy Colonoscopy
    • Flexible Colonoscopy with Dilation
    • Colon Dilation during Colonoscopy
    • Endoscopic Balloon Dilation of Colon
    • Hemorrhoid Banding
    • Colon Exam with Ligation

    CPT Codes:

    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 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)
    • 45384: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by hot biopsy forceps
    • 45386: Colonoscopy, flexible; with transendoscopic balloon dilation
    • 45398: Colonoscopy, flexible; with band ligation(s) (eg, hemorrhoids)

    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

    Also known as:

    • EGD with Esophageal Balloon Dilation
    • Flexible Sigmoidoscopy with Biopsy
    • Diagnostic Upper Endoscopy with Biopsy
    • Colonoscopy with Injections
    • Esophagus Widening Procedure (Endoscopic)
    • ERCP with Biopsy
    • ERCP with Gallstone or Pancreatic Stone Removal
    • Upper Endoscopy with Injections
    • Sigmoidoscopy with Hemorrhoid Banding
    • Upper Endoscopy with Varices Banding
    • Colorectal Cancer Screening Tests
    • Colonoscopy
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening
    • Endoscopic Retrograde Cholangiopancreatography with Biopsy
    • Bile Duct Biopsy (ERCP)
    • Pancreatic Duct Biopsy (ERCP)
    • Endoscopic Retrograde Cholangiopancreatography
    • Bile Duct Stone Removal
    • Pancreatic Stone Lithotripsy
    • EGD with Submucosal Injections
    • Esophagogastroduodenoscopy with Injections
    • Stomach Scope with Medication
    • Flexible Sigmoidoscopy with Ligation
    • Hemorrhoid Banding (Sigmoidoscopy)
    • Lower Endoscopy for Hemorrhoids
    • EGD with Band Ligation
    • Esophageal Varices Banding
    • Gastric Varices Treatment

    CPT Codes:

    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 43261: Endoscopic retrograde cholangiopancreatography (ERCP); with biopsy, single or multiple
    • 43265: Endoscopic retrograde cholangiopancreatography (ERCP); with destruction of calculi, any method (eg, mechanical, electrohydraulic, lithotripsy)
    • 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance
    • 45350: Sigmoidoscopy, flexible; with band ligation(s) (eg, hemorrhoids)
    • 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices

    Also known as:

    • ERCP with Sphincterotomy
    • ERCP with Stent Placement
    • ERCP with Bile Duct Dilation
    • ERCP with Bile or Pancreatic Duct Stent Removal
    • ERCP for Bile/Pancreatic Stent Exchange
    • Diagnostic ERCP
    • Endoscopic retrograde cholangiopancreatography
    • Bile duct scope
    • Pancreatic duct scope
    • Papillotomy
    • Endoscopic Retrograde Cholangiopancreatography with Stent
    • Bile Duct Stent Placement via ERCP
    • Pancreatic Duct Stent Placement via ERCP
    • Endoscopic Retrograde Cholangiopancreatography with Dilation
    • Bile Duct Widening via ERCP
    • Pancreatic Duct Balloon Dilation
    • Endoscopic Retrograde Cholangiopancreatography
    • Bile Duct Stent Removal
    • Pancreatic Duct Foreign Body Removal
    • ERCP Stone Removal
    • Bile duct stent replacement (ERCP)
    • Endoscopic retrograde cholangiopancreatography with stent exchange
    • Biliary stent removal and replacement
    • Pancreatic duct stent exchange

    CPT Codes:

    • 43262: Endoscopic retrograde cholangiopancreatography (ERCP); with sphincterotomy/papillotomy
    • 43274: Endoscopic retrograde cholangiopancreatography (ERCP); with placement of endoscopic stent into biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent
    • 43277: Endoscopic retrograde cholangiopancreatography (ERCP); with trans-endoscopic balloon dilation of biliary/pancreatic duct(s) or of ampulla (sphincteroplasty), including sphincterotomy, when performed, each duct
    • 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)
    • 43276: Endoscopic retrograde cholangiopancreatography (ERCP); with removal and exchange of stent(s), biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent exchanged
    • 43260: Endoscopic retrograde cholangiopancreatography (ERCP); diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Esophageal Dilation (Bougie)
    • Esophageal Widening
    • Bougie Dilation of Esophagus
    • Swallowing Tube Dilation

    CPT Codes:

    • 43450: Dilation of esophagus, by unguided sound or bougie, single or multiple passes

    Also known as:

    • ERCP with Gallstone Removal
    • ERCP
    • Endoscopic Gallstone Removal
    • Biliary Duct Stone Removal
    • Pancreatic Duct Cleaning

    CPT Codes:

    • 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)

    Also known as:

    • Upper Endoscopy with Stomach/Duodenum Dilation
    • Upper Endoscopy with Polyp Removal
    • Upper Endoscopy with Tumor Ablation
    • EGD with Dilation
    • Esophageal Dilation
    • Stomach Stricture Widening
    • Duodenal Stricture Repair
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision
    • EGD with Ablation
    • Esophagus, Stomach, Duodenum Scope with Ablation
    • Flexible Endoscopy Lesion Treatment

    CPT Codes:

    • 43245: Esophagogastroduodenoscopy, flexible, transoral; with dilation of gastric/duodenal stricture(s) (eg, balloon, bougie)
    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)

    Also known as:

    • Flexible Sigmoidoscopy
    • Colorectal Cancer Screening Tests
    • Sigmoidoscopy
    • Lower colon exam
    • Flexible colon scope
    • Rectum and lower colon check

    CPT Codes:

    • 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Endoscopic Tube Placement into Bile or Pancreatic Duct
    • ERCP Cannulation
    • Bile Duct Cannulation
    • Pancreatic Duct Access (Endoscopic)

    CPT Codes:

    • 43273: Endoscopic cannulation of papilla with direct visualization of pancreatic/common bile duct(s) (List separately in addition to code(s) for primary procedure)

    Also known as:

    • Feeding Tube Placement with Endoscopy
    • PEG Tube Placement
    • Gastrostomy Tube Insertion
    • EGD with Feeding Tube
    • Percutaneous Endoscopic Gastrostomy

    CPT Codes:

    • 43246: Esophagogastroduodenoscopy, flexible, transoral; with directed placement of percutaneous gastrostomy tube

    Also known as:

    • Upper Endoscopy for Foreign Body Removal
    • EGD for Foreign Body
    • Gastroscopy for Object Removal
    • Esophagogastroduodenoscopy for Foreign Body

    CPT Codes:

    • 43247: Esophagogastroduodenoscopy, flexible, transoral; with removal of foreign body(s)

    Also known as:

    • Sigmoidoscopy with Polyp Removal
    • Colorectal Cancer Screening Tests
    • Flexible Sigmoidoscopy with Polypectomy
    • Colon Polyp Removal (Lower Colon)
    • Sigmoid Colon Lesion Excision
    • Lower Endoscopy with Polyp Removal

    CPT Codes:

    • 45338: Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Stopping Bleeding in Esophagus, Stomach, or Duodenum
    • EGD with Bleeding Control
    • Upper GI Endoscopy for Bleeding
    • Gastric Bleeding Treatment

    CPT Codes:

    • 43255: Esophagogastroduodenoscopy, flexible, transoral; with control of bleeding, any method

    Also known as:

    • Capsule Endoscopy
    • Pill Camera
    • Wireless Capsule Endoscopy
    • Small Bowel Capsule Endoscopy
    • Intestinal Imaging Pill

    CPT Codes:

    • 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report

    Does Dr. Williams accept my insurance?

    Dr. Williams accepts most major insurance plans. Important: Please call our office at (662) 234-9888 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Williams accept in Oxford, MS?

    Dr. Williams in Oxford, MS 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 Mississippi

    • Centene

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Humana

    • Medicaid

    • Medicare

    • State of Mississippi

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Williams' office located?

    Dr. Ernest Williams' Primary Practice

    1208 Office Park Dr

    Oxford, MS 38655

    (662) 234-9888

    Get Directions

    Dr. Ernest Williams' Practice 2

    7668 Airways Blvd Bldg 2

    Southaven, MS 38671

    Get Directions

    What is Dr. Williams's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Williams's National Provider Identifier (NPI) number is 1588623292.

    What common questions do patients ask about Dr. Williams?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Williams

    What is Dr. Ernest Williams's specialty?

    Dr. Williams is a Gastroenterologist near Oxford, MS. 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. Contact Dr. Williams to book an appointment today.

    Is this Dr. Ernest Williams affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Williams is affiliated with Ochsner Medical Center - Hancock, UMMC Grenada Hospital, Baptist Memorial Hospital-Memphis, Baptist Memorial Hospital-North Mississippi 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

    Where can I learn more about Gastroenterologist?

    Explore Gastroenterologist with 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 Ernest Williams accepting new patients in Oxford, MS?

    Yes, Dr. Ernest Williams is accepting new patients at this time.

    Does Dr. Ernest Williams offer online booking?

    Please contact Dr. Williams's office at (662) 234-9888 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Ernest Williams?

    Please contact Dr. Williams's office at (662) 234-9888 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Ernest Williams have?

    Dr. Ernest Williams is certified by the American Board of Internal Medicine.

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