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- 198 Massachusetts Ave #103, North Andover, MA 01845
About Dr. Thatcher
Gentry W. Thatcher, MD practices otolaryngology (ent) in North Andover, MA. Gentry is a 1995 graduate of Tufts University School of Medicine. According to Medicare claims data, Gentry cared for 1,362 Medicare patients across 3,018 services. The services billed most often include test for allergy using allergenic extract, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and therapy procedure using functional activities. The provider's National Provider Identifier (NPI) is 1124020730.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (978) 685-7550
- Email not available
Practice Locations
198 MASSACHUSETTS AVE #103
North Andover, MA 01845
Conditions Commonly Evaluated or Treated
Within Otolaryngology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer
- Nasopharyngeal cancer
- Oropharyngeal cancer
- Sinonasal cancer
- Laryngeal cancer
- Oral cavity cancer
- Skin cancer of the head and neck
Pediatric and congenital
- Congenital neck mass
Most searched conditions
Balance
Ear and hearing
- Cholesteatoma
- Eustachian tube dysfunction
- Hearing loss
- Otosclerosis
- Perforated eardrum
- Swimmer's ear
Head, neck, and salivary
Nose and sinus
- Broken nose
- Deviated septum
- Loss or reduction of smell
- Nasal obstruction
- Nasal polyps
- Nosebleeds
- Seasonal allergies
Sleep and airway
Throat and voice
- Enlarged adenoids
- Globus sensation
- Hoarseness and voice change
- Laryngopharyngeal reflux
- Swallowing difficulties
- Vocal cord nodules
- Vocal cord paralysis
Head & Neck
Throat & Voice
- Frequent Strep Throat
Procedures & services
Cosmetic
- Earlobe Repair
Ear & Hearing
- Bone-Anchored Hearing Aid Surgery
- Eustachian Tube Balloon Dilation
Ear procedures
- Bone-anchored hearing-device placement
- Cochlear implant surgery
- Ear-tube placement
- Eardrum repair
- Mastoid surgery
- Stapes surgery
- Earwax removal
Endocrine Surgery
Facial plastic and reconstructive
- Facial reconstructive surgery
Head & Neck
- Neck Lump Removal
- Salivary Duct Stone Removal
- Thyroid Nodule Biopsy
Head and neck surgery
- Parathyroid surgery
- Submandibular gland removal
- Thyroid removal surgery
- Transoral robotic surgery
- Voice-box removal
- Neck lymph-node dissection
- Parotid gland surgery
Nose & Sinus
- Broken Nose Repair
Nose and sinus procedures
- Balloon sinus dilation
- Endoscopic sinus surgery
- Nasal cautery for nosebleeds
- Nasal-polyp removal
- Reduction of a broken nose
- Septoplasty
- Turbinate reduction
- Rhinoplasty
Office diagnosis
- Balance and vestibular testing
- ENT consultation
- Fine-needle aspiration of a neck mass
- Flexible laryngoscopy
- Hearing test
- Nasal endoscopy
- Rigid laryngoscopy
Throat, voice, and swallowing
- Esophageal dilation
- Instrumental swallowing evaluation
- Microlaryngoscopy
- Vocal-fold injection
Most searched procedures
- Adenoidectomy
- Ear tube surgery
- Hearing test
- Sinus surgery
- Tonsillectomy
Sleep and airway
- Drug-induced sleep endoscopy
- Hypoglossal nerve stimulator implantation
- Uvulopalatopharyngoplasty
Throat & Voice
Procedures Most Often Billed to Medicare
3,018 services · 1,362 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
151 | More than most peers in Otolaryngology (ENT) |
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
122 | More often than most peers in Otolaryngology (ENT) |
| Removal of impacted ear wax | Procedure | 69210 |
71 | As often as other peers in Otolaryngology (ENT) |
| Test for allergy using allergenic extract | Treatment | 95004 |
851 | As often as other peers in Otolaryngology (ENT) |
| Therapy procedure using functional activities | Treatment | 97530 |
313 | More often than most peers in Otolaryngology (ENT) |
| Test for allergy using allergenic extract injected into skin | Treatment | 95024 |
268 | Less often than most peers in Otolaryngology (ENT) |
| Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes | Treatment | 97112 |
232 | More often than most peers in Otolaryngology (ENT) |
| Repositioning exercises of head for treatment of dizziness, each day | Treatment | 95992 |
59 | More than most peers in Otolaryngology (ENT) |
| Test to assess middle ear function | Treatment | 92567 |
57 | As often as other peers in Otolaryngology (ENT) |
| Comprehensive hearing and speech recognition test | Treatment | 92557 |
56 | As often as other peers in Otolaryngology (ENT) |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other otolaryngology specialists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of voice box using a flexible endoscope 7
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Thatcher?
Dr. Thatcher is an otolaryngology (ent) in North Andover, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Thatcher's address?
Dr. Thatcher is listed at 198 Massachusetts Ave #103, North Andover, MA 01845. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Thatcher?
The number on file is (978) 685-7550. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Thatcher's NPI number?
Dr. Thatcher's National Provider Identifier is 1124020730. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Thatcher train?
Dr. Thatcher attended Tufts University School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Thatcher been practicing?
Dr. Thatcher has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Thatcher perform?
According to Medicare billing data, Dr. Thatcher performs procedures including diagnostic exam of voice box using a flexible endoscope, diagnostic exam of nasal passages using an endoscope and removal of impacted ear wax; provides treatments such as test for allergy using allergenic extract and therapy procedure using functional activities, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Thatcher confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Thatcher. If this is you, claiming it is free.
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