William Greaves, MD
Occupational Medicine Physician · Milwaukee, WI
William Greaves, MD is an occupational medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1760433510, issued on May 15, 2006. Check the license (Wisconsin 24314, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Greaves
- Credential
- MD
- Primary taxonomy
- Occupational Medicine Physician 2083X0100X
- License number
- 24314 WI
Self-reported in NPPES; status is on the state search - Practice location
- 8851 N Bayside Dr, Milwaukee, WI 53217
- Phone
- (414) 352-2762
- Enumerated
- May 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (414) 352-1345
- Medicaid ID
- 30711200 WI
- Entity
- Type 1 · individual
8 nearest occupational medicine physician records → All 71 in Wisconsin → Look up another NPI →
Verify William Greaves in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 24314Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average occupational medicine physician in 2024
17 Medicare Part D claims for 17 beneficiaries, against an average of 794 among the 463 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Atovaquone-Proguanil Hcl17 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.
William Greaves among 71 occupational medicine physician records in Wisconsin
William Greaves, MD is one of 71 occupational medicine physician records with a practice address in Wisconsin. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 55% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Occupational Medicine Physician providers in Wisconsin
There are 71 occupational medicine physician records in Wisconsin.
All 71 in Wisconsin → Every provider in Milwaukee → Occupational Medicine Physician nationwide →
The 8 occupational medicine physician records with the nearest ZIP codes
- Michael Lischak, M.D.Milwaukee, WI 532151225025364
- Nancy Petro, MDMilwaukee, WI 532151881701282
- David Wehby, M.D.Milwaukee, WI 532151689817959
- Dennis Schultz, M.D.West Allis, WI 532141821065582
- Peter Schnapp, MDMilwaukee, WI 532241396925616
- Timothy Vanliere, M.D.Milwaukee, WI 532071639299266
- Maureen Lavin, M.D.Milwaukee, WI 532021235259623
- Cindy Catania, DOWaukesha, WI 531861699769596
Common questions
What is William Greaves, MD's NPI number?
William Greaves, MD's National Provider Identifier (NPI) is 1760433510, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Greaves, MD located?
The NPPES record lists a practice address at 8851 N Bayside Dr, Milwaukee, WI, 53217. Phone: (414) 352-2762. Providers update this record themselves, so call before visiting.
How can I verify William Greaves, MD's license?
NPPES lists Wisconsin license number 24314, 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 Greaves, MD prescribe under Medicare Part D?
In 2024, William Greaves, MD had 17 Medicare Part D claims for 17 beneficiaries; the average among occupational medicine physician prescribers was 794. 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.