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Dr. George Walker, MD

Dr. George Walker, MD

Gastroenterologist

Mesa, AZ

31 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Walker, Gastroenterologist in Mesa, AZ?

    Dr. George Walker, MD is a Gastroenterologist, who primarily practices in Mesa, AZ with 1 additional practice location. He has been practicing for over 31 years. Dr. Walker graduated from St. George's University School of Medicine and completed his residency at Good Samaritan Reg Med Ctr, Gastroenterology; Sinai Samaritan Med Ctr, Gastroenterology; Griffin Hosp, Internal Medicine. Dr. Walker is fluent in English and Spanish, and is currently seeing new patients. Dr. Walker’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Walker’s office at (480) 985-1700.

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

    • Residency: Good Samaritan Reg Med Ctr, Gastroenterology; Sinai Samaritan Med Ctr, Gastroenterology; Griffin Hosp, Internal Medicine | Banner Good Samaritan Medical Center Program

    • Medical School: St George',s University | St. George's University School of Medicine

    What languages does Dr. Walker speak?

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

    • English
    • Spanish

    What conditions does a Gastroenterologist like Dr. Walker typically treat?

    As a Gastroenterologist, Dr. Walker 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. Walker. 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:

    • 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:

    • 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:

    • Colon Polyps
    • Colonic Polyps
    • Colorectal Polyps
    • Intestinal Polyps
    • Bowel Polyps

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps

    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. Walker typically perform?

    As a Gastroenterologist, Dr. Walker 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. Walker. 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 Polyp Removal
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Flexible Colonoscopy
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening

    CPT Codes:

    • 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)
    • 45380: Colonoscopy, flexible; with biopsy, single or multiple

    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
    • Esophagus Widening Procedure (Endoscopic)
    • Colonoscopy with Injections
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy

    CPT Codes:

    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance

    Also known as:

    • Liver Elastography
    • Elastography
    • FibroScan
    • Liver stiffness test
    • Shear wave elastography

    CPT Codes:

    • 91200: Liver elastography, mechanically induced shear wave (eg, vibration), without imaging, with interpretation and report

    Does Dr. Walker accept my insurance?

    Dr. Walker accepts most major insurance plans. Important: Please call our office at (480) 985-1700 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Walker accept in Mesa, AZ?

    Dr. Walker in Mesa, AZ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Capital Blue Cross

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Healthcare Advantage

    • Humana

    • Medicare

    • UMR Administered Payer

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Walker's office located?

    Dr. George Walker's Primary Practice

    6020 E Arbor Ave Ste 101

    Mesa, AZ 85206

    (480) 985-1700

    Get Directions

    Dr. George Walker's Practice 2

    2225 W Southern Ave Ste A

    Mesa, AZ 85202

    Get Directions

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

    Dr. Walker's National Provider Identifier (NPI) number is 1528053121.

    What common questions do patients ask about Dr. Walker?

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

    What is Dr. George Walker's specialty?

    Dr. Walker is a Gastroenterologist near Mesa, AZ.

    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 Dr. George Walker affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Walker is affiliated with Banner Baywood Medical Center, Banner Desert Medical Center, Banner - University Medical Center Phoenix, Banner Gateway Medical Center, Mercy Gilbert Medical Center, Banner Ocotillo Medical 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 Dr. George Walker accepting new patients in Mesa, AZ?

    Yes, Dr. George Walker is accepting new patients at this time.

    Does Dr. George Walker offer online booking?

    Please contact Dr. Walker's office at (480) 985-1700 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. George Walker?

    Please contact Dr. Walker's office at (480) 985-1700 to schedule an appointment.

    Where is Dr. Walker's office located?

    Dr. Walker's office is located in Mesa, AZ.