William Hofmann, M.D.
NPI 1306844949 · Otolaryngology Physician · Fort Atkinson, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hofmann, M.D. is a Otolaryngology Physician provider in Fort Atkinson, WI (NPI 1306844949).
Provider details
- NPI number
- 1306844949
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 52883-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
441 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 164 | $65 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 62 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $95 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 47 | $83 |
| Removal of Impacted Ear Wax69210 | 41 | $30 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 |
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 |
|---|---|---|
| Omeprazole | 55 | 23 |
| Fluticasone Propionate | 41 | 23 |
| Ipratropium Bromide | 34 | 15 |
| Prednisone | 20 | 16 |
| Triamterene/Hydrochlorothiazidbrand: Triamterene-Hydrochlorothiazid | 19 | — |
| Ofloxacin | 17 | 15 |
| Nabumetone | 14 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$70 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-08
- Last updated
- 2025-12-31
- Certified
- 2025-12-31
Frequently asked questions
- What is William Hofmann's NPI number?
- William Hofmann's National Provider Identifier (NPI) is 1306844949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hofmann's specialty?
- William Hofmann is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is William Hofmann located?
- William Hofmann's practice location on file with NPPES is 611 Sherman Ave E, Fort Atkinson, WI 53538-1960.
- What is William Hofmann's phone number?
- The practice phone number listed in the NPPES registry for William Hofmann is (920) 563-6667.
- Does William Hofmann accept Medicare?
- William Hofmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hofmann's NPI active?
- Yes — William Hofmann's NPI (1306844949) is active in the NPPES registry as of the last update on 2025-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.