Natalia Sak
NPI 1548141781 · Physical Therapist · Chicago, IL
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalia Sak is a Physical Therapist provider in Chicago, IL (NPI 1548141781).
Provider details
- NPI number
- 1548141781
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- No
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
83% 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
- 2025-09-11
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Natalia Sak's NPI number?
- Natalia Sak's National Provider Identifier (NPI) is 1548141781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalia Sak's specialty?
- Natalia Sak is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Natalia Sak located?
- Natalia Sak's practice location on file with NPPES is 1818 N Wells St, Chicago, IL 60614-5814.
- What is Natalia Sak's phone number?
- The practice phone number listed in the NPPES registry for Natalia Sak is (773) 782-2781.
- Does Natalia Sak accept Medicare?
- Natalia Sak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalia Sak's NPI active?
- Yes — Natalia Sak's NPI (1548141781) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.