John Nash, M.D.
NPI 1225117245 · Otolaryngology Physician · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Nash, M.D. is a Otolaryngology Physician provider in Fond Du Lac, WI (NPI 1225117245).
Provider details
- NPI number
- 1225117245
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50889 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
378 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 81 | $119 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 55 | $172 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 | $85 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 48 | $156 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $118 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 80 | 39 |
| Ipratropium Bromide | 54 | 25 |
| Fluticasone Propionate | 44 | 22 |
| Omeprazole | 35 | 12 |
| Prednisolone Acetate | 35 | 18 |
| Levocetirizine Dihydrochloride | 33 | — |
| Prednisone | 23 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2020-12-15
- Certified
- 2020-12-15
Frequently asked questions
- What is John Nash's NPI number?
- John Nash's National Provider Identifier (NPI) is 1225117245, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nash's specialty?
- John Nash is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is John Nash located?
- John Nash's practice location on file with NPPES is 421 Camelot Dr, Fond Du Lac, WI 54935-8335.
- What is John Nash's phone number?
- The practice phone number listed in the NPPES registry for John Nash is (920) 926-8460.
- Does John Nash accept Medicare?
- John Nash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Nash's NPI active?
- Yes — John Nash's NPI (1225117245) is active in the NPPES registry as of the last update on 2020-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.