Steven Herwick, MD
NPI 1235182791 · Diagnostic Radiology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Herwick, MD is a Diagnostic Radiology Physician provider in Chicago, IL (NPI 1235182791).
Provider details
- NPI number
- 1235182791
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036106709 (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
20 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
1,931 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 | 173 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 169 | $87 |
| Ct Scan Head Or Brain Without Contrast70450 | 100 | $39 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 82 | $83 |
| Ct Scan of Leg Without Contrast73700 | 69 | $47 |
| Ct Scan of Chest Without Contrast71250 | 60 | $51 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is Steven Herwick's NPI number?
- Steven Herwick's National Provider Identifier (NPI) is 1235182791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Herwick's specialty?
- Steven Herwick is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Herwick located?
- Steven Herwick's practice location on file with NPPES is 836 W Wellington Ave, Chicago, IL 60657-5147.
- What is Steven Herwick's phone number?
- The practice phone number listed in the NPPES registry for Steven Herwick is (773) 296-7820.
- Does Steven Herwick accept Medicare?
- Steven Herwick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Herwick's NPI active?
- Yes — Steven Herwick's NPI (1235182791) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.