Registry data as of Aug 27, 2026

Efstathios Naum, M.D.

Cardiovascular Disease Physician · Germantown, WI

Efstathios Naum, M.D. is a cardiovascular disease physician with a practice address in Germantown, Wisconsin, and NPI 1205866332, issued on Jul 4, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1205866332
Name
Efstathios Naum
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
Practice location
W180N11070 River Lin, Germantown, WI 53022
Phone
(262) 532-8441
Enumerated
Jul 4, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Efstathios Naum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

49% more Medicare Part D claims than the average cardiovascular disease physician in 2024

4,703 Medicare Part D claims for 600 beneficiaries, against an average of 3,149 among the 19,556 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Efstathios Naum4,703
  2. Specialty average3,149

Most prescribed

  1. Atorvastatin Calcium820 claims
  2. Metoprolol Succinate381 claims
  3. Carvedilol358 claims
  4. Rosuvastatin Calcium345 claims
  5. Amlodipine Besylate303 claims
  6. Losartan Potassium270 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.

One hospital or facility affiliation

  1. Aurora Advanced Healthcare, Inc.Hartford, WI

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

3 cardiovascular disease physician records list a Germantown practice address

They are 3 of the 329 NPPES records with a Germantown practice address, and 394 cardiovascular disease physician records in Wisconsin.

Other cardiovascular disease physician records in Wisconsin

  1. Katherine Abbo, MD FACCKenosha, WI1962488965
  2. Mateen Abidi, M.DLa Crosse, WI1730333980
  3. Zaid Abood, MDMilwaukee, WI1194254334
  4. Michael Accavitti, M.D.Madison, WI1679952642
  5. Peter Ackell, MDAppleton, WI1710937115
  6. Alexei Agapitov, M.D.Madison, WI1841201514
  7. Abdulmohsin Ahmadjee, M.DAppleton, WI1225370802
  8. Raju Ailiani, MDLa Crosse, WI1831192194
  9. Seydi Aksut, MDMilwaukee, WI1194890236
  10. Mamoun Al-Nouri, MDOshkosh, WI1104810100

Common questions

What is Efstathios Naum, M.D.'s NPI number?

Efstathios Naum, M.D.'s National Provider Identifier (NPI) is 1205866332, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Efstathios Naum, M.D. located?

The NPPES record lists a practice address at W180N11070 River Lin, Germantown, WI, 53022. Phone: (262) 532-8441. Providers update this record themselves, so call before visiting.

How can I verify Efstathios Naum, M.D.'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.

How much does Efstathios Naum, M.D. prescribe under Medicare Part D?

In 2024, Efstathios Naum, M.D. had 4,703 Medicare Part D claims for 600 beneficiaries; the average among cardiovascular disease physician prescribers was 3,149. 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.