Steve Gnatz, MD
NPI 1265406300 · Physical Medicine & Rehabilitation Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steve Gnatz, MD is a Physical Medicine & Rehabilitation Physician provider in Chicago, IL (NPI 1265406300).
Provider details
- NPI number
- 1265406300
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36078859 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2014-09-19
Frequently asked questions
- What is Steve Gnatz's NPI number?
- Steve Gnatz's National Provider Identifier (NPI) is 1265406300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steve Gnatz's specialty?
- Steve Gnatz is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Steve Gnatz located?
- Steve Gnatz's practice location on file with NPPES is 401 N Michigan Ave, Chicago, IL 60611-4255.
- What is Steve Gnatz's phone number?
- The practice phone number listed in the NPPES registry for Steve Gnatz is (630) 917-4246.
- Does Steve Gnatz accept Medicare?
- Steve Gnatz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steve Gnatz's NPI active?
- Yes — Steve Gnatz's NPI (1265406300) is active in the NPPES registry as of the last update on 2014-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.