William Bull, MD
Internal Medicine Physician · Beaver Dam, WI
William Bull, MD is an internal medicine physician with a practice address in Beaver Dam, Wisconsin, and NPI 1104511179, issued on Apr 6, 2023. Check the license (Wisconsin 85839-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Bull
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 85839-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 705 S University Ave, Beaver Dam, WI 53916
- Phone
- (920) 887-9272
- Enumerated
- Apr 6, 2023
- Entity
- Type 1 · individual
Also registered at 705 S University Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Augustson, MDFamily Medicine Physician1770534208
- Seth Barudin, MDFamily Medicine Physician1821051640
- Marie Berry, APNPDiabetes Educator Registered Nurse1164473591
- Ronay BjerkePharmacist1871847731
- Edward Cody, MDFamily Medicine Physician1144271677
- Douglas Cronin, PA-CPhysician Assistant1487605937
Verify William Bull in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 85839-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
315 Medicare Part D claims for 64 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Aripiprazole12 claims
- Bupropion Xl12 claims
- Venlafaxine Hcl Er12 claims
- Hydrochlorothiazide11 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.
8 internal medicine physician records list a Beaver Dam practice address
They are 8 of the 412 NPPES records with a Beaver Dam practice address, and 2,832 internal medicine physician records in Wisconsin.
All 8 in Beaver Dam → All 2,832 in Wisconsin → Every provider in Beaver Dam →
Other internal medicine physician records in Wisconsin
- Sheetal Aatrai, MDMarshfield, WI1417568965
- Noormuhammad Abbasakoor, M.D.Sheboygan, WI1558645895
- Khalid Abdelgadir, MDManitowoc, WI1407433295
- Kareem Abdelhadi, MDRice Lake, WI1841494432
- Mesfin Abdissa, MDMilwaukee, WI1376579417
- Mohamed Fouzi Abdul Hameed, M.D.Weston, WI1255590899
- Hamza Abdul Majeed, DOMilwaukee, WI1881013282
- Anas Abed, MDMadison, WI1659002566
- Sameem Abedin, MDMilwaukee, WI1063641157
- Vincent Abejuela, DOMilwaukee, WI1356928543
Common questions
What is William Bull, MD's NPI number?
William Bull, MD's National Provider Identifier (NPI) is 1104511179, issued on Apr 6, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Bull, MD located?
The NPPES record lists a practice address at 705 S University Ave, Beaver Dam, WI, 53916. Phone: (920) 887-9272. Providers update this record themselves, so call before visiting.
How can I verify William Bull, MD's license?
NPPES lists Wisconsin license number 85839-20, 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 Bull, MD prescribe under Medicare Part D?
In 2024, William Bull, MD had 315 Medicare Part D claims for 64 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.