EverydayHealthLogo
Dr. William Hasler, MD

Dr. William Hasler, MD

Scottsdale, AZ

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hasler, Gastroenterologist in Scottsdale, AZ?

    Dr. William Hasler, MD is a Gastroenterologist, who primarily practices in Scottsdale, AZ with 2 additional practice locations. He is board certified. Dr. Hasler completed his residency at University of Michigan Affiliated Hospitals. Dr. Hasler is fluent in English, and is currently seeing new patients. Dr. Hasler’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hasler’s office at (734) 647-5670.

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

    • Fellowship: Internal Medicine Gastroenterology, University of Michigan Health System

    • Residency: University of Michigan Affiliated Hospitals

    Is Dr. Hasler board certified as a Gastroenterologist?

    Yes, Dr. William Hasler, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Hasler speak?

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

    • English

    What conditions does Dr. Hasler treat?

    As a Gastroenterologist, Dr. Hasler 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. Hasler. 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:

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

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Constipation
    • Difficulty Passing Stool
    • Infrequent Bowel Movements
    • Hard Stools

    ICD-10 Codes:

    • K5900: Constipation, unspecified

    Also known as:

    • Gastroparesis
    • Stomach Disorder
    • Delayed Gastric Emptying
    • Stomach Paralysis
    • Gastric Motility Disorder

    ICD-10 Codes:

    • K3184: Gastroparesis

    Also known as:

    • Abdominal Bloating
    • Gas
    • Gas in the Digestive Tract
    • Bloated Stomach
    • Swollen Belly
    • Gaseous Distension

    ICD-10 Codes:

    • R140: Abdominal distension (gaseous)

    Also known as:

    • Complete Bowel Incontinence
    • Bowel Incontinence
    • Full fecal incontinence
    • Total loss of bowel control
    • Severe accidental bowel leakage

    ICD-10 Codes:

    • R159: Full incontinence of feces

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    What procedures does Dr. Hasler perform?

    As a Gastroenterologist, Dr. Hasler 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. Hasler. 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 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

    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)

    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:

    • Diagnostic Upper Endoscopy with Biopsy
    • Colonoscopy with Injections
    • Upper Endoscopy with Varices Banding
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • EGD with Band Ligation
    • Esophageal Varices Banding
    • Gastric Varices Treatment

    CPT Codes:

    • 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
    • 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices

    Does Dr. Hasler accept my insurance?

    Dr. Hasler accepts most major insurance plans. Important: Please call our office at (734) 647-5670 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Hasler accept in Scottsdale, AZ?

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

    Top Insurances

    • All Other Third Party

    • Benefit and Risk Management Services (BRMS)

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Express Scripts

    • Humana

    • Medicare

    • Mutual of Omaha

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Hasler's office located?

    Dr. William Hasler's Primary Practice

    13400 E Shea Blvd

    Scottsdale, AZ 85259

    (734) 647-5670

    Get Directions

    Dr. William Hasler's Practice 2

    5779 E Mayo Blvd

    Phoenix, AZ 85054

    Get Directions

    Dr. William Hasler's Practice 3

    4260 Plymouth Rd

    Ann Arbor, MI 48109

    Get Directions

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

    Dr. Hasler's National Provider Identifier (NPI) number is 1346322872.

    What common questions do patients ask about Dr. Hasler?

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

    What is Dr. William Hasler's specialty?

    Dr. Hasler is a Gastroenterologist near Scottsdale, AZ. 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. Hasler to book an appointment today.

    Is this Dr. William Hasler affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Hasler is affiliated with Mayo Clinic Hospital, Shannon 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

    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 William Hasler accepting new patients in Scottsdale, AZ?

    Yes, Dr. William Hasler is accepting new patients at this time.

    Does Dr. William Hasler offer online booking?

    Please contact Dr. Hasler's office at (734) 647-5670 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with William Hasler?

    Please contact Dr. Hasler's office at (734) 647-5670 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. William Hasler have?

    Dr. William Hasler is certified by the American Board of Internal Medicine.

    Other Gastroenterologist Near Scottsdale, AZ

    AS

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Scottsdale, AZ
    KK

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Scottsdale, AZ
    DS

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Scottsdale, AZ
    See All Specialists

    Doctors by Category

    Specialists