Gregory Zweig, MD
NPI 1063598324 · Diagnostic Radiology Physician · Schaumburg, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Zweig, MD is a Diagnostic Radiology Physician provider in Schaumburg, IL (NPI 1063598324).
Provider details
- NPI number
- 1063598324
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-073392 (IL)
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
2,620 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 | 338 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 272 | $41 |
| Mri Scan of Brain Before and After Contrast70553 | 241 | $111 |
| X-Ray of Chest, 2 Views71046 | 198 | $11 |
| X-Ray of Chest, 2 Views71046 | 136 | $11 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 117 | $71 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-30
- Last updated
- 2008-02-25
Frequently asked questions
- What is Gregory Zweig's NPI number?
- Gregory Zweig's National Provider Identifier (NPI) is 1063598324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Zweig's specialty?
- Gregory Zweig is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Zweig located?
- Gregory Zweig's practice location on file with NPPES is 1834 Walden Office Sq, Schaumburg, IL 60173.
- What is Gregory Zweig's phone number?
- The practice phone number listed in the NPPES registry for Gregory Zweig is (847) 397-2300.
- Does Gregory Zweig accept Medicare?
- Gregory Zweig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Zweig's NPI active?
- Yes — Gregory Zweig's NPI (1063598324) is active in the NPPES registry as of the last update on 2008-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.