William C. Hofmann, M.D.
Otolaryngology Physician · Fort Atkinson, WI
William C. Hofmann, M.D. is an otolaryngology physician with a practice address in Fort Atkinson, Wisconsin, and NPI 1306844949, issued on Jul 8, 2005. Check the license (Wisconsin 52883-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William C. Hofmann
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 52883-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 611 Sherman Ave E, Fort Atkinson, WI 53538
- Phone
- (920) 563-6667
- Enumerated
- Jul 8, 2005
- Record last updated
- Dec 31, 2025
- Medicaid ID
- 036109322 IL
- Medicare enrollment
- Enrolled (PECOS I20090909000751); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 231 in Wisconsin → Look up another NPI →
Also registered at 611 Sherman Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ailleen Alquinto Anonuevo, M.D.Internal Medicine Physician1417900143
- Michael Anderson, M.D.Otolaryngology Physician1588685077
- Lisa Ashwill, RDN, CDRegistered Dietitian1689217580
- Jonathan Beck, DNP, CRNACertified Registered Nurse Anesthetist1831648989
- Debra Bingham, CRNACertified Registered Nurse Anesthetist1154479889
- James Brown, P.A.Physician Assistant1831179910
Verify William C. Hofmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 52883-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average otolaryngology physician in 2024
363 Medicare Part D claims for 163 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Omeprazole55 claims
- Fluticasone Propionate41 claims
- Ipratropium Bromide34 claims
- Prednisone20 claims
- Triamterene-Hydrochlorothiazid19 claims
- Ofloxacin17 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.
Industry payments in 2024: $69.59
1 payment: food and beverage; the largest payer was Inspire Medical Systems, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Fort Healthcare IncFort Atkinson, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William C. Hofmann among 231 otolaryngology physician records in Wisconsin
William C. Hofmann, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1998 · median 2004 among the 147 with a school on file
- Record last updated2025 · 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 Fort Atkinson → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Michael Anderson, M.D.Fort Atkinson, WI 535381588685077
- David Rowe, M.D.Fort Atkinson, WI 535381679594162
- Matthew Sdano, MDFort Atkinson, WI 535381376648378
- Warren Ellison, MDJanesville, WI 535461194765560
- Steven Lyon, MDJanesville, WI 535461013950096
- Landon Riggs, MDJanesville, WI 535461386709723
- Eric Yang, M.D.Janesville, WI 535461376719054
- Peter Lee, M.D.Middleton, WI 535621629320007
Common questions
What is William C. Hofmann, M.D.'s NPI number?
William C. Hofmann, M.D.'s National Provider Identifier (NPI) is 1306844949, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William C. Hofmann, M.D. located?
The NPPES record lists a practice address at 611 Sherman Ave E, Fort Atkinson, WI, 53538. Phone: (920) 563-6667. Providers update this record themselves, so call before visiting.
How can I verify William C. Hofmann, M.D.'s license?
NPPES lists Wisconsin license number 52883-20, 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 William C. Hofmann, M.D. prescribe under Medicare Part D?
In 2024, William C. Hofmann, M.D. had 363 Medicare Part D claims for 163 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.