SYLWIA NOWAK M.D.
NPI 1871948059
Allergy & Immunology in Peoria, IL

Q: What is Sylwia Nowak's NPI number?

The NPI number for Sylwia Nowak is 1871948059. It was assigned to this individual provider in the NPPES registry on April 26, 2016.

Q: What is Sylwia Nowak's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Sylwia Nowak was last updated on January 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 26, 2016PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

8600 STATE ROUTE 91 STE 330, PEORIA, IL 61615(309) 308-2010(309) 308-2029 Get Directions Write a Review

NPPES record last updated: January 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 3, 2024, Sep 11, 2024, Aug 23, 2017 (3 updates tracked since 2017).

On this page

About Sylwia Nowak M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SYLWIA NOWAK M.D. (NPI 1871948059) is an individual allergy & immunology provider in Peoria, Illinois, licensed in Illinois (036.148706) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Saint Francis Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1871948059

Entity TypeIndividualFemale

Primary Taxonomy207K00000X

Provider Legal NameSYLWIA NOWAKCredential: M.D.

Location Address8600 STATE ROUTE 91 STE 330Peoria, IL 61615-7835

Mailing Address8600 State Route 91 Ste 330Peoria, IL 61615-7835 · (309) 308-2010 · Fax (309) 308-2029

Phone(309) 308-2010

Fax(309) 308-2029

Sole ProprietorNo

Medical School CMSOtherGraduated 2016

Enumeration DateApril 26, 2016

Last NPPES UpdateJanuary 28, 20253 updates tracked since enumeration

NPPES CertifiedJanuary 28, 2025

✔ NPI 1871948059 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in IL · 036.148706

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedPediatricsTaxonomy 208000000X · License 036.148706 (IL)

Also ListedGeneral PracticeTaxonomy 208D00000X · License 036.148706 (IL)

8600 STATE ROUTE 91 STE 330, Peoria, IL 61615

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1389 S Schmale RdCarol Stream, IL 60188-2756 · Phone (630) 668-9610

Location 22210 Dean St Ste MSt Charles, IL 60175-1059 · Phone (630) 668-9610

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sylwia Nowak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5092049569

PECOS Enrollment IDI20240126002180

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Sylwia Nowak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Osf Multi-Specialty Group

0.1 mi

Internal Medicine

8600 N STATE ROUTE 91
Peoria, IL 61615

Reassigned Medicare billing, Illinois enrollment
2,944 clinicians in this Medicare group

NPI 1154908929 (309) 683-5050

Regents Of The University Of California - Ucsf

1,760 mi

Multi-Specialty

505 PARNASSUS AVE
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
82 clinicians in this Medicare group

NPI 1265890263 (415) 476-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Francis Medical Center

Acute Care Hospitals · Peoria, IL

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140067

Location530 NE Glen Oak AvePeoria, IL 61637 · Peoria County

Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Improvement Activities

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sylwia Nowak's NPI number?

The NPI number for Sylwia Nowak is 1871948059. It was assigned to this individual provider in the NPPES registry on April 26, 2016.

Where is Sylwia Nowak located?

Sylwia Nowak practices at 8600 State Route 91 Ste 330, Peoria, IL 61615. The listed phone number is (309) 308-2010.

What is Sylwia Nowak's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Sylwia Nowak enrolled in Medicare?

Yes. Sylwia Nowak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Sylwia Nowak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sylwia Nowak reassigns Medicare benefits to 2 organizations: Osf Multi-Specialty Group (Peoria, IL) and Regents Of The University Of California - Ucsf (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sylwia Nowak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sylwia Nowak accept?

Health plans from CareSource (Common Ground Healthcare) list Sylwia Nowak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sylwia Nowak affiliated with any hospitals?

According to CMS data, Sylwia Nowak is affiliated with Saint Francis Medical Center.

When was this NPI record last updated?

The NPPES record for Sylwia Nowak was last updated on January 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.