Are you Dr. Mcmahan? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 247 S Nicolet Rd, Appleton, WI 54914
About Dr. Mcmahan
Based in Appleton, WI, John T. McMahan, MD is listed in the NPI registry under otolaryngology (ent). John graduated from Medical University of South Carolina College of Medicine in 1973. John is also listed as specializing in otolaryngology — pediatric. According to Medicare claims data, John cared for 198 Medicare patients across 222 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, ct scan of face without contrast, and diagnostic exam of nasal passages using an endoscope. NPI 1518910272 identifies this record in the national registry.
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
- (888) 938-3838
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
247 S NICOLET RD
Appleton, WI 54914
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
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
Procedures & services
Cosmetic
Ear & Hearing
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
Head & Neck
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
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
Most searched procedures
Sleep and airway
Throat & Voice
Procedures Most Often Billed to Medicare
222 services · 198 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
34 | Less often than most peers in Otolaryngology (ENT) |
| Diagnostic exam of voice box using a flexible endoscope | Procedure | 31575 |
17 | Less often than most peers in Otolaryngology (ENT) |
| Ct scan of face without contrast | Imaging | 70486 |
38 | More often than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
46 | Less often than most peers in Otolaryngology (ENT) |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
24 | More often than most peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
22 | As often as other peers in Otolaryngology (ENT) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 | Less often than most peers in Otolaryngology (ENT) |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
13 | Less often than most peers in Otolaryngology (ENT) |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 | Less often than most 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.
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.
Other otolaryngology specialists in Appleton 5
Same specialty, same city.
Trained at Medical University of South Carolina College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1973 at Medical University of South Carolina College of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of nasal passages using an endoscope 8
Providers in WI who bill this service to Medicare most often.
Common questions
What is Dr. McMahan's specialty?
Dr. McMahan is an otolaryngology (ent) in Appleton, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. McMahan?
Dr. McMahan is listed at 247 S Nicolet Rd, Appleton, WI 54914. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. McMahan?
The number on file is (888) 938-3838. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. McMahan's NPI number?
Dr. McMahan's National Provider Identifier is 1518910272. 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
What is Dr. McMahan's medical education?
Dr. McMahan attended Medical University of South Carolina College of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. McMahan been practicing?
Dr. McMahan has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What is Dr. McMahan known for?
According to Medicare billing data, Dr. McMahan performs procedures including diagnostic exam of nasal passages using an endoscope and diagnostic exam of voice box using a flexible endoscope; reads or performs imaging such as ct scan of face without contrast, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. McMahan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. McMahan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.