Efstathios Naum, M.D.
NPI 1205866332 · Interventional Cardiology Physician · Germantown, WI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Efstathios Naum, M.D. is a Interventional Cardiology Physician provider in Germantown, WI (NPI 1205866332).
Provider details
- NPI number
- 1205866332
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 45229 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,119 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 174 | $121 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 171 | $11 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 150 | $64 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 78 | $181 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 69 | $71 |
| Heart Muscle Strain Imaging93356 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 820 | 226 |
| Metoprolol Succinate | 381 | 119 |
| Carvedilol | 358 | 97 |
| Rosuvastatin Calcium | 345 | 99 |
| Amlodipine Besylate | 303 | 93 |
| Losartan Potassium | 270 | 80 |
| Metoprolol Tartrate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-04
- Last updated
- 2025-02-09
- Certified
- 2025-02-09
Frequently asked questions
- What is Efstathios Naum's NPI number?
- Efstathios Naum's National Provider Identifier (NPI) is 1205866332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efstathios Naum's specialty?
- Efstathios Naum is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Efstathios Naum located?
- Efstathios Naum's practice location on file with NPPES is W180n11070 River Lin, Germantown, WI 53022.
- What is Efstathios Naum's phone number?
- The practice phone number listed in the NPPES registry for Efstathios Naum is (262) 532-8441.
- Does Efstathios Naum accept Medicare?
- Efstathios Naum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Efstathios Naum's NPI active?
- Yes — Efstathios Naum's NPI (1205866332) is active in the NPPES registry as of the last update on 2025-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.