Peter N. Dionisopoulos, MD
Cardiovascular Disease Physician · Waukesha, WI
Peter N. Dionisopoulos, MD is a cardiovascular disease physician with a practice address in Waukesha, Wisconsin, and NPI 1952499196, issued on Oct 11, 2006. Check the license on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Peter N. Dionisopoulos
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 20414 NE
Self-reported in NPPES; status is on the state search - Practice location
- 721 American Ave Ste 403, Waukesha, WI 53188
- Phone
- (262) 549-1516
- Enumerated
- Oct 11, 2006
- Record last updated
- Jan 24, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid IDs
- 03037221 NY
100411930A KS
2454884 OH
2525055 IA - Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 449 in Wisconsin → Look up another NPI →
Also registered at 721 American Ave Ste 403
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tammy Johnsen, NPNurse Practitioner1073713913
Verify Peter N. Dionisopoulos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Peter N. Dionisopoulos among 449 cardiovascular disease physician records in Wisconsin
Peter N. Dionisopoulos, MD 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 not. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 42% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2018 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 449 in Wisconsin → Every provider in Waukesha → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Zuber Ali, M.D.Waukesha, WI 531881548536204
- William Burns, M.D.Waukesha, WI 531881508806522
- Kevin Bustos, DOWaukesha, WI 531881508483553
- Imad Katib, M.D.Waukesha, WI 531881740237601
- Matthew Weinberg, M.D.Waukesha, WI 531881093856635
- Ali Hamoudi, MDMount Pleasant, WI 531771831629096
- Robert Huxley, MDMilwaukee, WI 532071669412425
- Kenneth Phillips, M.D.Milwaukee, WI 532091982638318
Common questions
What is Peter N. Dionisopoulos, MD's NPI number?
Peter N. Dionisopoulos, MD's National Provider Identifier (NPI) is 1952499196, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Peter N. Dionisopoulos, MD located?
The NPPES record lists a practice address at 721 American Ave Ste 403, Waukesha, WI, 53188. Phone: (262) 549-1516. Providers update this record themselves, so call before visiting.
How can I verify Peter N. Dionisopoulos, MD's license?
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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.