Peter S. Diamond, M.D.
Cardiovascular Disease Physician · Elkhorn, WI
Peter S. Diamond, M.D. is a cardiovascular disease physician with a practice address in Elkhorn, Wisconsin, and NPI 1730126954, issued on May 31, 2006. Check the license (Wisconsin 67017, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Peter S. Diamond
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 67017 WI
Self-reported in NPPES; status is on the state search - Practice location
- W3985 County Road NN, Elkhorn, WI 53121
- Phone
- (262) 741-2000
- Enumerated
- May 31, 2006
- Record last updated
- Apr 6, 2023
- Fax
- (262) 741-2180
- Medicaid ID
- 100048791 WI
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 449 in Wisconsin → Look up another NPI →
Also registered at W3985 County Road NN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Peter S. Diamond in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 67017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
34 Medicare Part D claims for 28 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
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.
Peter S. Diamond among 449 cardiovascular disease physician records in Wisconsin
Peter S. Diamond, M.D. is one of 449 cardiovascular disease physician records with a practice address in Wisconsin. 77% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 42% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2023 · 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 207RC0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Wisconsin
There are 449 cardiovascular disease physician records in Wisconsin.
All 449 in Wisconsin → Every provider in Elkhorn → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Cary Berkowitz, MDElkhorn, WI 531211174543292
- Nakash Grant, MDElkhorn, WI 531211366691016
- Ajay Reddy, MDElkhorn, WI 531211366654865
- Nishit Shah, M.D.Elkhorn, WI 531211831455427
- Thomas Broihier, MDCudahy, WI 531101578641155
- Lili Barsky, MDBurlington, WI 531051184038671
- James Moran, MDBurlington, WI 531051013024421
- Robert Richmond, D.O.Burlington, WI 531051689930612
Common questions
What is Peter S. Diamond, M.D.'s NPI number?
Peter S. Diamond, M.D.'s National Provider Identifier (NPI) is 1730126954, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter S. Diamond, M.D. located?
The NPPES record lists a practice address at W3985 County Road NN, Elkhorn, WI, 53121. Phone: (262) 741-2000. Providers update this record themselves, so call before visiting.
How can I verify Peter S. Diamond, M.D.'s license?
NPPES lists Wisconsin license number 67017, 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 Peter S. Diamond, M.D. prescribe under Medicare Part D?
In 2024, Peter S. Diamond, M.D. had 34 Medicare Part D claims for 28 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.