William Ritt, D.O.
Surgery Physician · Sheboygan, WI
William Ritt, D.O. is a surgery physician with a practice address in Sheboygan, Wisconsin, and NPI 1811283526, issued on Jun 21, 2011. Check the license (Wisconsin 65758-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Ritt
- Credential
- D.O.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 65758-21 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3400 Union Ave, Sheboygan, WI 53081
- Phone
- (920) 828-2700
- Enumerated
- Jun 21, 2011
- Record last updated
- Jul 14, 2025
- Medicaid ID
- 1811283526 WI
- Medicare enrollment
- Enrolled (PECOS I20160817000862); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 726 in Wisconsin → Look up another NPI →
Also registered at 3400 Union Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sumar AbushaqraFamily Nurse Practitioner1023488475
- Naohide Arakaki, CRNACertified Registered Nurse Anesthetist1457669582
- Jennifer Banholzer, NPNurse Practitioner1629841515
- Anushka BaruahGastroenterology Physician1669887675
- Tyler Beranek, D.O.Emergency Medicine Physician1134532435
- Joanna Betry, FNP-BCFamily Nurse Practitioner1578235214
Verify William Ritt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65758-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% more Medicare Part D claims than the average surgery physician in 2024
172 Medicare Part D claims for 107 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 77 claims were for opioids.
Most prescribed
- Tramadol Hcl62 claims
- Hydrocodone-Acetaminophen13 claims
- Diazepam12 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
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Ritt among 726 surgery physician records in Wisconsin
William Ritt, D.O. is one of 726 surgery physician records with a practice address in Wisconsin. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2011 · median 2006 among the 446 with a school on file
- Record last updated2025 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Wisconsin
There are 726 surgery physician records in Wisconsin.
All 726 in Wisconsin → Every provider in Sheboygan → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- William Chleborad, MDSheboygan, WI 530811851300982
- Nicholas Draeger, D.O.Sheboygan, WI 530811902031909
- Badri Ganju, MDSheboygan, WI 530811154436244
- Emiko Hayakawa, M.D.Sheboygan, WI 530811982042297
- Michael Heili, M.D.Sheboygan, WI 530811134142615
- Brian Obrochta, D.O.Sheboygan, WI 530811912136656
- Abdelouahid Souala, MDSheboygan, WI 530811033600721
- Stephen Werner, M.D.Sheboygan, WI 530811295703635
Common questions
What is William Ritt, D.O.'s NPI number?
William Ritt, D.O.'s National Provider Identifier (NPI) is 1811283526, issued on Jun 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William Ritt, D.O. located?
The NPPES record lists a practice address at 3400 Union Ave, Sheboygan, WI, 53081. Phone: (920) 828-2700. Providers update this record themselves, so call before visiting.
How can I verify William Ritt, D.O.'s license?
NPPES lists Wisconsin license number 65758-21, 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 Ritt, D.O. prescribe under Medicare Part D?
In 2024, William Ritt, D.O. had 172 Medicare Part D claims for 107 beneficiaries; the average among surgery physician prescribers was 147. 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.