Otolaryngol Head Neck Surg
HypersensitivityImmunoglobulin EOtitis Media
Dr. John Thomas McMahan, MD
NPI1518910272
- Medicare services, 2024
- 222
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 550
- Publications
- 4
- MIPS score, 2024
- 93
- Practice address
- 908 N Elm St, Hinsdale, IL 60521
- Practice phone
- Call (630) 965-2225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
A & V Medical Group
Hinsdale, Illinois
Find Dr. McMahan's professional email, personal email and mobile number
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Dr. John Thomas McMahan is an otolaryngologist in Hinsdale, Illinois
Dr. McMahan practices at A & V Medical Group in Hinsdale, Illinois.
Dr. McMahan's NPI, 1518910272, was assigned on May 17, 2006. Dr. McMahan graduated from Medical University of South Carolina (MUSC) in 1973. Dr. McMahan holds Illinois license 036051277.
NPI and contact details
- NPI
- 1518910272NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2006
- NPI status
- Active
- Practice phone
- (630) 965-2225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John Thomas McMahan practices at A & V Medical Group in Hinsdale, Illinois
Dr. McMahan's primary practice is A & V Medical Group, at 908 N Elm St, Hinsdale, IL 60521 in Dupage County. The practice phone is (630) 965-2225.
- A & V Medical Group908 N Elm St, Hinsdale, IL 60521 · Dupage CountyPhone(630) 965-2225
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Thomas McMahan is affiliated with 1 site of care and 3 medical groups
Dr. McMahan's primary practice is A & V Medical Group in Hinsdale, Illinois. The medical group on file is Central Maine Medical Center. Dmand AI also links Dr. McMahan to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Thomas McMahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McMahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| A & V Medical Group | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Thomas McMahan is one of 401 otolaryngologists in Illinois
Otolaryngology is Dr. McMahan's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. McMahan is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dmand AI has Dr. McMahan's licenses on file in 5 states: Illinois, Colorado, California, Maine and Wisconsin.
Specialties and state licenses
- Otolaryngology, IllinoisPrimary
- Colorado license
- California license
- Maine license
- Wisconsin license
Clinical focus
Dmand AI lists acute sinusitis, chronic nasal allergies, chronic sinusitis, ear eustachian tube disorders, ear infection, endoscopic sinus surgery, hearing loss and impairment and larynx and vocal cord disease among the conditions Dr. McMahan treats.
Otolaryngologists near Dr. McMahan
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
401otolaryngologists in Illinois
5otolaryngologists in Hinsdale
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Thomas McMahan billed Medicare for 222 services in 2024
CMS data shows 222 Medicare services from Dr. McMahan across 9 procedure codes in 2024, for 97 Medicare patients. Medicare paid $16,202 for them. Every service was in an office.
Medicare services, 2024222
Medicare patients97
Paid by Medicare$16,202
Procedure codes9
Dr. McMahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7162024: 13381%
- Surgery
- 2023: 3572024: 5186%
- Imaging
- 2023: 1582024: 3876%
- Tests and treatments
- 2023: 242024: 0100%
Dr. McMahan compared with the Illinois median for otolaryngologists, 2024
- Dr. McMahan
- Illinois median
- Medicare services
- 222vs 60363% below
- Medicare patients
- 97vs 29167% below
- Part D claims
- 483vs 1633.0 times
Medians across 384 otolaryngologists in Illinois with Dmand AI profiles that report each measure.
Dr. McMahan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. McMahan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McMahan and other otolaryngologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Thomas McMahan treated 97 Medicare patients in 2024, average age 76
CMS counts 97 Medicare patients who saw Dr. McMahan in 2024. The largest group is 75 to 84, with 44 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McMahan's median patient age at 53, with 50% women.
Medicare patients, 202497
Average age76
Average risk score1.22
Dr. McMahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. McMahan's Medicare patients by sex, 2024
- Women5153%
- Men4647%
Chronic conditions among Dr. McMahan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Anxiety30%
- Ischemic heart disease28%
- Diabetes26%
- Mood disorders23%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Dr. McMahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Thomas McMahan wrote 550 Medicare Part D claims in 2024
In 2024, Dr. McMahan wrote 550 Medicare Part D claims for 184 patients. 96% of them were for generic drugs. CMS names the drug for 483 of them, across 11 drugs with 11 or more claims each, at $9,239 in total drug cost. In 2023, CMS named 925 claims across 13 drugs.
Part D claims, 2024550
Drugs named by CMS11
Total drug cost$9,239
Part D patients184
Dr. McMahan's Part D claims by kind of drug, 2024
- Generic528 claims96%
- Brand-name22 claims4%
Dr. McMahan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. McMahan's Part D claims, 2024
- Antibiotics13%74 of 550 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9252024: 48348%
Drugs named by CMS: 11 in 2024, 13 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John Thomas McMahan scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. McMahan for performance year 2024, reported as part of a group.
Dr. McMahan's MIPS scores, performance year 2024
- 93of 100Final score
- 87of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Thomas McMahan has 4 publications on record
Dmand AI links 4 papers to Dr. McMahan.
Papers4
Recent publications by Dr. McMahan
See who Dr. McMahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. McMahan works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Thomas McMahan received $15,780 in industry payments from 2016 to 2022
CMS Open Payments shows 99 general payments to Dr. McMahan from 21 drug and device companies from 2016 to 2022. Speaker and faculty fees make up the largest share, 41% of the total. Meda Pharmaceuticals, Inc. paid the most, $8,216.
General payments to Dr. McMahan by program year, 2016 to 2022
General payments to Dr. McMahan by kind, 2016 to 2022
$15.8Kin total
- Speaker and faculty fees$6,42041%
- Gifts$5,98338%
- Food and beverage$2,15914%
- Travel and lodging$1,2188%
Companies that paid Dr. McMahan the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Thomas McMahan has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. McMahan.
Awards and honors for Dr. McMahan
- Undated
- AAO-HNS Fellow
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. John Thomas McMahan graduated from Medical University of South Carolina (MUSC)
Dr. McMahan graduated from Medical University of South Carolina (MUSC) in 1973. Dr. McMahan is a member of NHS and ACS.
- Medical school
- Board certified in otolaryngology
Source: Dmand AI Professional Profile Data
Dr. John Thomas McMahan accepts plans from 9 insurance carriers
Dr. McMahan is in network with 9 carriers, including Elevance, Aetna and Cigna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Cigna
- HCSC
- Blue Cross Blue Shield of Michigan
- Humana
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +1 more carriersWith a free account
Plan types Dr. McMahan accepts, by number of carriers
- Medicare8
- PPO8
- HMO6
- POS5
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Thomas McMahan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Thomas McMahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Thomas McMahan's NPI number?
Dr. John Thomas McMahan's NPI number is 1518910272. It was assigned on May 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Thomas McMahan?
Dr. John Thomas McMahan is an otolaryngologist in Hinsdale, Illinois. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. John Thomas McMahan practice?
Dr. McMahan practices at 908 N Elm St, Hinsdale, IL 60521. Dr. McMahan's primary practice is A & V Medical Group in Hinsdale, Illinois. Dmand AI also links Dr. McMahan to 2 medical groups.
What is Dr. John Thomas McMahan's office phone number?
The practice phone on file for Dr. McMahan is (630) 965-2225.
What is Dr. John Thomas McMahan's medical license number?
Dr. McMahan holds Illinois license 036051277, one of the licenses on file in 5 states.
Which states has Dr. John Thomas McMahan been licensed in?
Dmand AI has state licenses on file for Dr. McMahan in Illinois (1975 to 2026), Colorado (2020 to 2027), California (2017 to 2026), Maine (2020 to 2026) and Wisconsin (2025).
What medical group is Dr. John Thomas McMahan part of?
Dr. McMahan is linked to Central Maine Medical Center. Dmand AI links Dr. McMahan to 2 more medical groups.
Does Dr. John Thomas McMahan accept Medicare?
Yes. CMS data shows Dr. McMahan billed Medicare for 222 services in 2024.
What is Dr. John Thomas McMahan's MIPS score?
Dr. McMahan's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Thomas McMahan see?
CMS counts 97 Medicare patients who saw Dr. McMahan in 2024, with an average age of 76.
Show 8 more questionsShow fewer questions
Is Dr. John Thomas McMahan board certified?
Yes. Dr. McMahan is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.
What services does Dr. John Thomas McMahan bill to Medicare?
In 2024, Dr. McMahan's most billed Medicare services were office visit, established patient (99213), diagnostic imaging (70486) and surgery: lungs and airway (31231).
Where did Dr. John Thomas McMahan go to medical school?
Dr. McMahan graduated from Medical University of South Carolina (MUSC) in 1973.
What drugs does Dr. John Thomas McMahan prescribe most?
In 2024 Medicare Part D data, Dr. McMahan's most prescribed drugs by claims were Omeprazole, Montelukast Sodium and Fluticasone Propionate.
Has Dr. John Thomas McMahan received payments from drug or device companies?
CMS Open Payments shows $15,780 in general payments to Dr. McMahan from 21 companies from 2016 to 2022. The largest total came from Meda Pharmaceuticals, Inc.
How long has Dr. John Thomas McMahan been practicing?
Dr. McMahan graduated from medical school in 1973, 53 years ago.
Does Dr. John Thomas McMahan do research?
Dmand AI links 4 publications to Dr. McMahan.
What insurance does Dr. John Thomas McMahan accept?
Dr. McMahan is in network with 9 carriers, including Elevance, Aetna and Cigna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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