Stefanie Losik
NPI 1720461858 · Certified Registered Nurse Anesthetist · Chicago, IL
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefanie Losik is a Certified Registered Nurse Anesthetist provider in Chicago, IL (NPI 1720461858).
Provider details
- NPI number
- 1720461858
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209013576 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1555 Barrington RdHoffman Estates, IL 60169-1019Phone: (847) 843-2000
Registry dates
- Enumerated
- 2015-07-07
- Last updated
- 2019-07-03
Frequently asked questions
- What is Stefanie Losik's NPI number?
- Stefanie Losik's National Provider Identifier (NPI) is 1720461858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefanie Losik's specialty?
- Stefanie Losik is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stefanie Losik located?
- Stefanie Losik's practice location on file with NPPES is 1740 W Taylor St Ste 3200w, Chicago, IL 60612-7232.
- What is Stefanie Losik's phone number?
- The practice phone number listed in the NPPES registry for Stefanie Losik is (312) 996-4020.
- Does Stefanie Losik accept Medicare?
- Stefanie Losik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefanie Losik's NPI active?
- Yes — Stefanie Losik's NPI (1720461858) is active in the NPPES registry as of the last update on 2019-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.