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Dr. Gregory Sewall, MD

Dr. Gregory Sewall, MD

Wausau, WI

20 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Sewall, Otolaryngologist in Wausau, WI?

    Dr. Gregory Sewall, MD is an Otolaryngologist, who primarily practices in Wausau, WI with 1 additional practice location. He has been practicing for over 20 years and is board certified. Dr. Sewall graduated from Medical College of Wisconsin and completed his residency at University Of Wisconsin Hospital And Clinics ~. Dr. Sewall is fluent in English, and is currently seeing new patients. Dr. Sewall’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sewall’s office at (715) 847-2021.

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

    • Residency: University Of Wisconsin Hospital And Clinics ~

    • Medical School: Medical College of Wisconsin

    Is Dr. Sewall board certified as an Otolaryngologist?

    Yes, Dr. Gregory Sewall, MD is board certified by the American Board of Otolaryngology

    What languages does Dr. Sewall speak?

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

    • English

    What conditions does an Otolaryngologist like Dr. Sewall typically treat?

    As an Otolaryngologist, Dr. Sewall 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. Sewall. 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:

    • Other Eustachian Tube Problems
    • Ear Disorder
    • Eustachian Tube Disorders
    • Ear Tube Issues

    ICD-10 Codes:

    • H6983: Other specified disorders of Eustachian tube, bilateral

    Also known as:

    • Enlarged Tonsils
    • Tonsil hypertrophy
    • Swollen tonsils
    • Big tonsils

    ICD-10 Codes:

    • J351: Hypertrophy of tonsils

    Also known as:

    • Enlarged Tonsils and Adenoids
    • Adenoids
    • Tonsil and adenoid hypertrophy
    • Swollen tonsils and adenoids
    • Big tonsils and adenoids

    ICD-10 Codes:

    • J353: Hypertrophy of tonsils with hypertrophy of adenoids

    Also known as:

    • Blocked Earwax
    • Ear Disorder
    • Impacted earwax
    • Earwax impaction
    • Excess earwax

    ICD-10 Codes:

    • H6123: Impacted cerumen, bilateral

    Also known as:

    • Chronic Sinusitis
    • Sinusitis
    • Chronic sinus infection
    • Persistent sinus inflammation
    • Rhinosinusitis

    ICD-10 Codes:

    • J328: Other chronic sinusitis

    Also known as:

    • Nose and Sinus Disorder
    • Nose Injuries and Disorder
    • Nasal problems
    • Sinus problems
    • Nose and sinus conditions

    ICD-10 Codes:

    • J3489: Other specified disorders of nose and nasal sinuses

    Also known as:

    • Sensorineural Hearing Loss
    • Hearing Disorder and Deafness
    • Nonsyndromic hearing loss
    • Nerve Deafness
    • Inner Ear Hearing Loss
    • SNHL
    • Permanent Hearing Loss

    ICD-10 Codes:

    • H903: Sensorineural hearing loss, bilateral

    What procedures does an Otolaryngologist like Dr. Sewall typically perform?

    As an Otolaryngologist, Dr. Sewall 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. Sewall. 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:

    • Diagnostic Nasal Endoscopy
    • Endoscopy
    • Nose Scope
    • Rhinoscope
    • Nasal Examination with Scope

    CPT Codes:

    • 31231: Nasal endoscopy, diagnostic, unilateral or bilateral (separate procedure)

    Also known as:

    • Flexible Diagnostic Laryngoscopy
    • Voice Box Exam
    • Flexible Laryngoscope
    • Throat Scope
    • Diagnostic Throat Exam

    CPT Codes:

    • 31575: Laryngoscopy, flexible; diagnostic

    Also known as:

    • Ear Tube Insertion (General Anesthesia)
    • Anesthesia
    • Tympanostomy with Tubes
    • Myringotomy with Tube Placement
    • Ventilating Tube Insertion (Ear)

    CPT Codes:

    • 69436: Tympanostomy (requiring insertion of ventilating tube), general anesthesia

    Also known as:

    • Impacted Ear Wax Removal (One Ear)
    • Cerumen Impaction Removal
    • Ear Wax Extraction with Tools
    • Professional Ear Cleaning

    CPT Codes:

    • 69210: Removal impacted cerumen requiring instrumentation, unilateral

    Also known as:

    • Tonsil and Adenoid Removal (Children)
    • Pediatric Tonsillectomy
    • Adenoidectomy for Kids
    • T&A Surgery

    CPT Codes:

    • 42820: Tonsillectomy and adenoidectomy; younger than age 12

    Also known as:

    • Tonsillectomy (Age 12+)
    • Tonsil Removal
    • Adult Tonsillectomy
    • Throat Surgery for Tonsils

    CPT Codes:

    • 42826: Tonsillectomy, primary or secondary; age 12 or over

    Also known as:

    • Computer-Assisted Brain Navigation
    • Stereotactic Cranial Navigation
    • Image-Guided Brain Surgery
    • Computer-Guided Neurosurgery

    CPT Codes:

    • 61782: Stereotactic computer-assisted (navigational) procedure; cranial, extradural (List separately in addition to code for primary procedure)

    Does Dr. Sewall accept my insurance?

    Dr. Sewall accepts most major insurance plans. Important: Please call our office at (715) 847-2021 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Sewall accept in Wausau, WI?

    Dr. Sewall in Wausau, WI accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Group Health Cooperative of Eau Claire

    • Marshfield Clinic Health System

    • Medicare

    • State of Wisconsin

    • The Alliance

    • UMR Administered Payer

    • UnitedHealth Group

    • Unknown

    View All Insurances

    Where is Dr. Sewall's office located?

    Dr. Gregory Sewall's Primary Practice

    512 S 28th Ave

    Wausau, WI 54401

    (715) 847-2021

    Get Directions

    Dr. Gregory Sewall's Practice 2

    135 S Gibson St

    Medford, WI 54451

    Get Directions

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

    Dr. Sewall's National Provider Identifier (NPI) number is 1336195023.

    What common questions do patients ask about Dr. Sewall?

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

    What is Dr. Gregory Sewall's specialty?

    Dr. Sewall is a Otolaryngologist near Wausau, WI.

    What does an Otolaryngologist do?

    An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for conditions affecting the ears, nose, throat, respiratory, and upper alimentary systems, as well as related head and neck structures. This specialist diagnoses and treats diseases, allergies, neoplasms, deformities, disorders, and injuries involving these areas. Expertise includes head and neck oncology, facial plastic and reconstructive surgery, and the treatment of hearing and voice disorders.

    Is this Dr. Gregory Sewall affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Sewall is affiliated with Aspirus Wausau Hospital, Aspirus Stevens Point Hospital, Aspirus Rhinelander Hospital, Uw Health University Hospital 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 an Otolaryngologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Otolaryngologist. 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 Gregory Sewall accepting new patients in Wausau, WI?

    Yes, Dr. Gregory Sewall is accepting new patients at this time.

    Does Dr. Gregory Sewall offer online booking?

    Please contact Dr. Sewall's office at (715) 847-2021 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gregory Sewall?

    Please contact Dr. Sewall's office at (715) 847-2021 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Gregory Sewall have?

    Dr. Gregory Sewall is certified by the American Board of Otolaryngology.

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