John Leuthner, M.D.
Physical Medicine & Rehabilitation Physician · Fox Lake, IL
John Leuthner, M.D. is a physical medicine & rehabilitation physician with a practice address in Fox Lake, Illinois, and NPI 1851737779, issued on May 18, 2013. Check the license (Illinois 036150646, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Leuthner
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License numbers
- 036150646 IL
01078547 IN
Self-reported in NPPES; status is on the state search - Practice location
- 256 E Grand Ave, Fox Lake, IL 60020
- Phone
- (847) 370-6712
- Enumerated
- May 18, 2013
- Record last updated
- Aug 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20191003001736); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 707 in Illinois → Look up another NPI →
Verify John Leuthner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036150646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
638 Medicare Part D claims for 148 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 15 claims were for opioids.
Most prescribed
- Gabapentin265 claims
- Tizanidine Hcl119 claims
- Dexamethasone Sodium Phosphate27 claims
- Baclofen16 claims
- Diclofenac Sodium12 claims
- Atorvastatin Calcium11 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.
Bills Medicare through one group practice
- Integrated Rehab Consultants LLCSt Charles, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Leuthner among 707 physical medicine & rehabilitation physician records in Illinois
John Leuthner, M.D. is one of 707 physical medicine & rehabilitation physician records with a practice address in Illinois. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 55% of them.
- NPI issued2013 · 55% of these records are older, 44% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated2013 · median 2008 among the 329 with a school on file
- Record last updated2024 · 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 208100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 physical medicine & rehabilitation physician record lists a practice address in Fox Lake
They are 1 of the 69 NPPES records with a practice address in Fox Lake, and 707 physical medicine & rehabilitation physician records in Illinois.
All 707 in Illinois → Every provider in Fox Lake → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Jonathan Buck, DPTDes Plaines, IL 600181730837386
- Spencer Fang, PT, DPTGlenview, IL 600251114564135
- Amanda Schell, OTR/L, CLT-LANA, LMTBannockburn, IL 600151568038453
- Joseph Alleva, MDGlenview, IL 600261053331074
- Khalida Anwar, MDGlenview, IL 600261952384117
- Joseph Dadabo, M.D.Glenview, IL 600261538556774
- Kandise DossGlenview, IL 600261679380802
- Shannon HamerGlenview, IL 600261649864182
Common questions
What is John Leuthner, M.D.'s NPI number?
John Leuthner, M.D.'s National Provider Identifier (NPI) is 1851737779, issued on May 18, 2013. An NPI identifies a provider in billing; it is not a license.
Where is John Leuthner, M.D. located?
The NPPES record lists a practice address at 256 E Grand Ave, Fox Lake, IL, 60020. Phone: (847) 370-6712. Providers update this record themselves, so call before visiting.
How can I verify John Leuthner, M.D.'s license?
NPPES lists Illinois license number 036150646, as entered by the provider. 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 Leuthner, M.D. prescribe under Medicare Part D?
In 2024, John Leuthner, M.D. had 638 Medicare Part D claims for 148 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.