KATARZYNA SLYS PA-C
NPI 1336757459
Physician Assistant in Naperville, IL

Active since July 14, 2020PECOS EnrolledAccepts Medicare Assignment
230 MARTIN AVE, NAPERVILLE, IL 60540(630) 848-1200(630) 848-1208 Get Directions Write a Review

NPPES record last updated: December 19, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 19, 2025, Nov 29, 2022, Aug 5, 2020 and 1 more (4 updates tracked since 2020).

About Katarzyna Slys Pa-c NPPES

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

KATARZYNA SLYS PA-C (NPI 1336757459) is an individual physician assistant in Naperville, Illinois, licensed in Illinois (085.007231) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1336757459
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKATARZYNA SLYSCredential: PA-C
Location Address230 MARTIN AVENaperville, IL 60540-6536
Mailing Address230 Martin AveNaperville, IL 60540-6536
Fax(630) 848-1208
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 14, 2020
Last NPPES UpdateDecember 19, 20254 updates tracked since enumeration
NPPES CertifiedDecember 19, 2025
NPI 1336757459 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in IL · 085.007231
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
230 MARTIN AVE, Naperville, IL 60540

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Katarzyna Slys Pa-c 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 ID8123595626
PECOS Enrollment IDI20260422000604
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Clinic/Center (Adult Mental Health)
230 MARTIN AVE
NAPERVILLE, IL 60540
Physician Assistant
230 MARTIN AVE
NAPERVILLE, IL 60540
Social Worker
230 MARTIN AVE
NAPERVILLE, IL 60540
Counselor (Professional)
230 MARTIN AVE
NAPERVILLE, IL 60540
Counselor (Professional)
230 MARTIN AVE
NAPERVILLE, IL 60540
Clinic/Center (Mental Health (Including Community Mental Health Center))
230 MARTIN AVE
NAPERVILLE, IL 60540
Counselor (Mental Health)
230 MARTIN AVE
NAPERVILLE, IL 60540
Counselor (Mental Health)
230 MARTIN AVE
NAPERVILLE, IL 60540

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 Katarzyna Slys's NPI number?

The NPI number for Katarzyna Slys is 1336757459. It was assigned to this individual provider in the NPPES registry on July 14, 2020.

Where is Katarzyna Slys located?

Katarzyna Slys practices at 230 Martin Ave, Naperville, IL 60540. The listed phone number is (630) 848-1200.

What is Katarzyna Slys's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Katarzyna Slys enrolled in Medicare?

Yes. Katarzyna Slys 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.

When was this NPI record last updated?

The NPPES record for Katarzyna Slys was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.