Joseph Persak, M.D.
NPI 1841394368 · Diagnostic Radiology Physician · Geneva, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Persak, M.D. is a Diagnostic Radiology Physician provider in Geneva, IL (NPI 1841394368).
Provider details
- NPI number
- 1841394368
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036071830 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
3,352 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 401 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 343 | $89 |
| Ct Scan Head Or Brain Without Contrast70450 | 306 | $40 |
| Ct Scan of Chest Without Contrast71250 | 270 | $53 |
| Ct Scan of Chest With Contrast71260 | 207 | $55 |
| Mri Scan of Abdomen Before and After Contrast74183 | 164 | $108 |
| Ct Scan of Upper Spine Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2012-03-08
Frequently asked questions
- What is Joseph Persak's NPI number?
- Joseph Persak's National Provider Identifier (NPI) is 1841394368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Persak's specialty?
- Joseph Persak is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Persak located?
- Joseph Persak's practice location on file with NPPES is 300 Randall Rd, Geneva, IL 60134-4200.
- What is Joseph Persak's phone number?
- The practice phone number listed in the NPPES registry for Joseph Persak is (630) 208-3000.
- Does Joseph Persak accept Medicare?
- Joseph Persak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Persak's NPI active?
- Yes — Joseph Persak's NPI (1841394368) is active in the NPPES registry as of the last update on 2012-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.