Gretchen Zirgaitis, PT, DPT
NPI 1679453815 · Physical Therapist · Chicago, IL
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Zirgaitis, PT, DPT is a Physical Therapist provider in Chicago, IL (NPI 1679453815).
Provider details
- NPI number
- 1679453815
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT, DPT
- Sex
- Female
- Sole proprietor
- No
- License
- 70028307 (IL)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2025-09-08
- Last updated
- 2025-09-08
- Certified
- 2025-09-07
Frequently asked questions
- What is Gretchen Zirgaitis's NPI number?
- Gretchen Zirgaitis's National Provider Identifier (NPI) is 1679453815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Zirgaitis's specialty?
- Gretchen Zirgaitis is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Gretchen Zirgaitis located?
- Gretchen Zirgaitis's practice location on file with NPPES is 851 N California Ave, Chicago, IL 60622-4401.
- What is Gretchen Zirgaitis's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Zirgaitis is (773) 904-7477.
- Does Gretchen Zirgaitis accept Medicare?
- Gretchen Zirgaitis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Zirgaitis's NPI active?
- Yes — Gretchen Zirgaitis's NPI (1679453815) is active in the NPPES registry as of the last update on 2025-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.