Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John J Nash, MD

Individual provider Otolaryngology Physician · NPI 1225117245

John J Nash, MD practises Otolaryngology in Fond Du Lac, Wisconsin. Graduated from Medical College of Wisconsin in 2006, 20 years ago. Practices with Agnesian Healthcare Inc, a 390-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
20
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

421 Camelot Dr
Fond Du Lac, WI 54935-8335
Phone: (920) 926-8460
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 50889 (WI)

Record details

NPI number1225117245
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESDecember 15, 2020
Certification dateDecember 15, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOTOLARYNGOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2006 (20 years in practice)
Group practice Agnesian Healthcare Inc — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients176
Services billed 433 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Ssm Health St Agnes Hospital-Fond Du Lac Hospital · Fond Du Lac, WI

Colleagues at Agnesian Healthcare Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 390 clinicians in the practice; 12 are shown here.

Other providers in Fond Du Lac