John J. Nash, M.D.
Otolaryngology Physician · Fond Du Lac, WI
John J. Nash, M.D. is an otolaryngology physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1225117245, issued on Nov 2, 2006. Check the license (Wisconsin 50889, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John J. Nash
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 50889 WI
Self-reported in NPPES; status is on the state search - Practice location
- 421 Camelot Dr, Fond Du Lac, WI 54935
- Phone
- (920) 926-8460
- Enumerated
- Nov 2, 2006
- Record last updated
- Dec 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 100016598 WI
- Medicare enrollment
- Enrolled (PECOS I20110817000819); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2006
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 231 in Wisconsin → Look up another NPI →
Also registered at 421 Camelot Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Anderson, PT CEESPhysical Therapist1649213877
- Nicole Auxier, MA CCC-AAudiologist1174514889
- Krista Behling, DPTPhysical Therapist1689075590
- Elizabeth Bensen, M.D.Physical Medicine & Rehabilitation Physician1366433435
- Robert Bertram, DPMFoot & Ankle Surgery Podiatrist1578908042
- Ashley Beyer, LATAthletic Trainer1306379433
Verify John J. Nash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 50889Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average otolaryngology physician in 2024
469 Medicare Part D claims for 187 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Azelastine Hcl80 claims
- Ipratropium Bromide54 claims
- Fluticasone Propionate44 claims
- Omeprazole35 claims
- Prednisolone Acetate35 claims
- Levocetirizine Dihydrochloride33 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
- Agnesian Healthcare IncFond Du Lac, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Nash among 231 otolaryngology physician records in Wisconsin
John J. Nash, M.D. is one of 231 otolaryngology physician records with a practice address in Wisconsin. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2006 · median 2004 among the 147 with a school on file
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Wisconsin
There are 231 otolaryngology physician records in Wisconsin.
All 231 in Wisconsin → Every provider in Fond Du Lac → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Suhail Hariri, MDFond Du Lac, WI 549351942281068
- William Sybesma, MDFond Du Lac, WI 549351093798324
- Rex Gromer, MDMenasha, WI 549521992384648
- Gregory Swanson, MDAppleton, WI 549151710971783
- Robert Bechard, M.D.Neenah, WI 549561306849443
- Larry Burton, MDNeenah, WI 549561841226628
- Ryan Funk, M.D.Appleton, WI 549141720460363
- Christopher Keller, M.D.Neenah, WI 549561437152568
Common questions
What is John J. Nash, M.D.'s NPI number?
John J. Nash, M.D.'s National Provider Identifier (NPI) is 1225117245, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Nash, M.D. located?
The NPPES record lists a practice address at 421 Camelot Dr, Fond Du Lac, WI, 54935. Phone: (920) 926-8460. Providers update this record themselves, so call before visiting.
How can I verify John J. Nash, M.D.'s license?
NPPES lists Wisconsin license number 50889, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John J. Nash, M.D. prescribe under Medicare Part D?
In 2024, John J. Nash, M.D. had 469 Medicare Part D claims for 187 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.