John Gottfried Mayer, MD
Orthopaedic Surgery Physician · Gurnee, IL
John Gottfried Mayer, MD is an orthopaedic surgery physician with a practice address in Gurnee, Illinois, and NPI 1194716985, issued on Nov 2, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Gottfried Mayer
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- Practice location
- 105 N Greenleaf St, Gurnee, IL 60031
- Phone
- (847) 623-3090
- Enumerated
- Nov 2, 2005
- Record last updated
- Mar 11, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (847) 623-9620
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 995 in Illinois → Look up another NPI →
Also registered at 105 N Greenleaf St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Roger Collins, MDOrthopaedic Surgery Physician1073504973
- Sarah French-VillarrealBehavior Technician1407788706
- Gerard Goshgarian, M.D.Orthopaedic Surgery Physician1013001908
- Cindy Jarosch, PTAPhysical Therapy Assistant1811335136
- Christina Labrie, ATCAthletic Trainer1912307521
- Spencer MaddenBehavior Analyst1538099098
Verify John Gottfried Mayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
241 Medicare Part D claims for 76 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 63 claims were for opioids.
Most prescribed
- Tramadol Hcl55 claims
- Methylprednisolone48 claims
- Gabapentin41 claims
- Celecoxib16 claims
- Meloxicam15 claims
- Ibuprofen11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John Gottfried Mayer among 995 orthopaedic surgery physician records in Illinois
John Gottfried Mayer, MD is one of 995 orthopaedic surgery physician records with a practice address in Illinois. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2008 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 orthopaedic surgery physician records list a practice address in Gurnee
They are 10 of the 846 NPPES records with a practice address in Gurnee, and 995 orthopaedic surgery physician records in Illinois.
All 995 in Illinois → Every provider in Gurnee → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Roger Collins, MDGurnee, IL 600311073504973
- Robert Dugan, MDGurnee, IL 600311659324085
- Gerard Goshgarian, M.D.Gurnee, IL 600311013001908
- Bruce Hamming, MDGurnee, IL 600311649219304
- David Hamming, MDGurnee, IL 600311609068386
- Mark HammingGurnee, IL 600311861653453
- Edward Logue, MDGurnee, IL 600311396797270
- Theodore Schoenfeldt, MDGurnee, IL 600311366946881
Common questions
What is John Gottfried Mayer, MD's NPI number?
John Gottfried Mayer, MD's National Provider Identifier (NPI) is 1194716985, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Gottfried Mayer, MD located?
The NPPES record lists a practice address at 105 N Greenleaf St, Gurnee, IL, 60031. Phone: (847) 623-3090. Providers update this record themselves, so call before visiting.
How can I verify John Gottfried Mayer, MD's license?
Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Gottfried Mayer, MD prescribe under Medicare Part D?
In 2024, John Gottfried Mayer, MD had 241 Medicare Part D claims for 76 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.