Accepting new patients

Dr. Gregory Sewall, MD

Ear, Nose, and Throat ·  Male · Age 46

Dr. Sewall

Dr. Gregory Sewall, MD is an otolaryngology (ear, nose & throat) specialist in Wausau, WI and has been practicing for 20 years. He graduated from Medical College Of Wisconsin in 1999 and specializes in ear, nose, and throat.


Accepting new patients


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(715) 847-2021

Dr. Sewall accepts the following insurance:

Aetna
Aetna PPO
Arise Health Plan
Arise Health Plan HMO
Aspirus Network, Inc.
North Central Healthcare Alliance (NCHA)
Beech Street (Multiplan)
Blue Cross Blue Shield
ChoiceCare Network
Choice Care (Humana)
Cigna
HealthEOS
HealthPartners
HealthSmart - Interplan Health Group
Interplan Health Group
Humana
Gold
Gold Choice
MultiPlan
PHCS
Security Health Plan (SHP)
Today's Options
Medicare Advantage PPO
UnitedHealthCare
Medicare Advantage PFFS
United Healthcare
Universal American
WEA Trust
Trust Preferred POS
Trust Preferred PPO
WEA Insurance Corporation
WEA Insurance Corporation POS
WPS Health Insurance
Indemnity
Statewide

Background Check

Healthgrades does not collect malpractice claims information for Wisconsin
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check Dr. Sewall's experience treating your condition or procedure

Dr. Sewall's Top Procedures and Conditions

Treatment Frequency
Earwax Buildup
high
high

Treatment Frequency

Dr. Sewall treats Earwax Buildup more than 89% of his peers

Dr. Sewall treats this condition more than 89% of his peers

Leukoplakia
normal
normal

Treatment Frequency

Dr. Sewall treats Leukoplakia more than 84% of his peers

Dr. Sewall treats this condition more than 84% of his peers

Larynx Conditions
normal
normal

Treatment Frequency

Dr. Sewall treats Larynx Conditions more than 82% of his peers

Dr. Sewall treats this condition more than 82% of his peers

Dr. Sewall's conditions and procedures:

  • Ablation or Excision of Nasal Turbinates
  • Abscess
  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Acute Laryngitis
  • Acute Sinusitis
  • Acute Upper Respiratory Infection
  • Adenoidectomy
  • Adult Development Disorders
  • All Headaches (incl. Migraine)
  • Allergic Reaction
  • Allergic Rhinitis
  • Antrostomy and Antrotomy (Sinus Surgery)
  • Autoimmune Diseases
  • Balloon Sinuplasty
  • Bone Cancer
  • Bone Disorders
  • Brain Disorders
  • Broken Nose
  • Cancer
  • Cervical Lymph Node Dissection
  • Cholesteatoma
  • Chronic Laryngitis
  • Chronic Sinusitis
  • Chronic Tonsillitis
  • Cochlear Implant Insertion
  • Conductive Hearing Loss
  • Cough
  • Deafness
  • Deviated Septum
  • Diagnostic Nasal and-or Sinus Endoscopy
  • Dizziness
  • Down Syndrome
  • Dysphagia
  • Ear Ache
  • Ear Disorders
  • Ear Infection
  • Ear Surgery
  • Ear Tube Placement
  • Earwax Buildup
  • Enlarged Turbinates
  • ENT Surgery
  • Ethmoidectomy (Sinus Surgery)
  • Eustachian Tube Dysfunction
  • Excision of Parotid, Sublingual, or Submandibular Gland
  • Facial Fracture
  • Facial Trauma
  • Fracture
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Glossectomy
  • Head and Neck Cancer
  • Head and Neck Surgery
  • Head or Neck Lump or Swelling
  • Headache
  • Hearing Loss
  • Hoarse Voice (Dysphonia)
  • Incision and Removal of Foreign Object
  • Intranasal or Sinus Procedure
  • Laryngeal Cancer
  • Laryngitis
  • Laryngoscopy - Laryngotomy - Laryngectomy - Pharyngolaryngectomy - Pharyngectomy
  • Laryngoscopy and Laryngotomy
  • Larynx Conditions
  • Leukoplakia
  • Lip Cancer
  • Lip, Excision or Resection
  • Lymph Node Biopsy or Excision
  • Malignant Bone Cancer of the Skull, Face, and Jaw
  • Meniere's Disease
  • Nasal Obstruction
  • Nasal Septum Surgery (Septoplasty)
  • Nasal Surgery
  • Nosebleed
  • Oral Cancer
  • Osteosarcoma
  • Otitis Media
  • Otosclerosis
  • Outer Ear Infection
  • Perforated Eardrum
  • Perforated Eardrum Repair (Tympanoplasty)
  • Peritonsillar Abscess
  • Pharyngitis
  • Postnasal Drip
  • Pulmonary Disease
  • Salivary Gland Cancer
  • Salivary Gland Diseases
  • Salivary Gland Stones and Inflammation
  • Sinus Surgery
  • Sinusitis
  • Sleep Apnea
  • Sleep Disorders
  • Snoring
  • Sore Throat
  • Sphenoidotomy (Sinus Surgery)
  • Throat Cancer (Hypopharyngeal)
  • Throat Cancer (Oropharyngeal)
  • Thyroid Cancer
  • Thyroid Tumor
  • Thyroidectomy
  • Thyroidectomy or Thyroid Lobectomy
  • Tinnitus
  • TMJ
  • Tongue Cancer
  • Tonsillectomy
  • Tonsillitis
  • Tracheal Surgery
  • Trigeminal Neuralgia
  • Vertigo
  • Vocal Cord Nodule
  • Vocal Cord Paralysis
  • Vocal Cord Polyp
  • Voice Disorders
  • Wheezing
  • Wound Repair

About Me

Care Philosophy

I bring an integrated approach that provides patients of North Central Wisconsin the highest quality, technological care offered in larger institutions with a personalized small-town feel that our patients are accustomed to.

Specialties

  • Ear, Nose, and Throat

Board Certifications

Education

University Of Wisconsin Hospital & Clinics
Residency Hospital
1999
Medical College Of Wisconsin
Medical School
1999

Languages

  • Spanish
  • English

Awards

Dr. Sewall's Reviews

Likelihood to recommend Dr. Sewall

3.8

Based on 35 reviews

5 Stars
65.71428571428571%
(23)
4 Stars
5.714285714285714%
(2)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
28.571428571428573%
(10)

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Average Wait Time
  • 10 – 15 minutes
Dr. Sewall's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Gregory Sewall, MD
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My teenage son saw Dr Sewall and ended up having surgery. We felt he was a true advocate for our son. We walked through treatment options in a stepwise fashion. Surgery went smoothly and post operative care was very good.
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Rude, pits patients through more testing than needed, and will not see him again.
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Dr. Sewall is an excellent physician and surgeon and we would not trust anyone else with caring for our daughter. He explains procedures thoroughly and makes himself available after surgery even personally calling to follow up on post surgical recouperation. We are lucky to have such a talented ENT doctor in our area.
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Terrible.
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I was referred to Dr Sewall by a friend. I was willing to travel to get his opinion of a chronic problem. His diagnosis, explanation and patience definitely deserves 5 stars.
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Dr. Sewall took time to explain things to me and, importantly, also to my son. I appreciate the fact that he called us at home the day after surgery to check in. He is an excellent surgeon and I would highly recommend him. My son wants me to add "and he loves dogs too!" :)
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Very kind doctor. Easy to talk to. I would highly recommend him.
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I had been told by several walk in doctors that I had chronic sinusitis. I was ready to be be scheduled for sinus surgery due to the chronic pain i was having. After being seen by Dr. Sewall, it became clear I did not have sinusitis; instead I had migraine headaches. Thanks Dr. Sewall for listening and to me and using your expertise to diagnose me correctly!
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Dr. Sewall was amazing to work with. I had seen him a couple of times over the course of a few years regarding my enlarged tonsils. After working with me, it was determined it may be best to have them removed. I had read so many horror stories about how terrible the surgery can be, but recovery went well, and I didn't need anything stronger than ibuprofen while recovering! Dr. Sewall's care during the surgery was stellar and he didn't cause any extra trauma in my mouth or throat.
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My daughter has had hearing difficulties for the past 15 years. Dr. Sewall is and always has been wonderful with her. He explains things clearly, takes time to answer questions, is reassuring. His compassion and consistently thorough care has inspired my daughter to want to pursue a career in pediatric ENT.
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Dr. Sewall was very friendly and patient with my mother who has Alzheimers. It is sometimes difficult to get to the bottom of her issues because of her deficits but Dr. Sewall was able to play detective and uncover her problem. Working with such a kind man has been a pleasure.
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Very thorough & professional. Explained the procedure in terms that were easy to understand and most importantly the surgery he performed was a success.
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Felt like he was angry off I was there. Very rushed and short with me if I asked a question.
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Locations

ENT & Allergy Associates, S.C.

1
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 5:00pm
    • Tue: 8:00am - 5:00pm
    • Wed: 8:00am - 5:00pm
    • Thu: 8:00am - 5:00pm
    • Fri: 8:00am - 5:00pm
    • Sat: closed
    • Sun: closed
  • Directions

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