Katarzyna Slys, PA-C
NPI 1336757459 · Physician Assistant · Naperville, IL
Katarzyna Slys, PA-C is a Physician Assistant provider in Naperville, IL (NPI 1336757459).
Provider details
- NPI number
- 1336757459
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 085.007231 (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
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Sertraline Hcl | 53 |
| Quetiapine Fumarate | 51 |
| Lorazepam | 39 |
| Alprazolam | 38 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 37 |
| Buspirone Hcl | 37 |
| Desvenlafaxine Succinatebrand: Desvenlafaxine Succinate Er | 35 |
| Trazodone Hcl | 32 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,000 across 41 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
Registry dates
- Enumerated
- 2020-07-14
- Last updated
- 2025-12-19
- Certified
- 2025-12-19
Frequently asked questions
- What is Katarzyna Slys's NPI number?
- Katarzyna Slys's National Provider Identifier (NPI) is 1336757459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katarzyna Slys's specialty?
- Katarzyna Slys is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katarzyna Slys located?
- Katarzyna Slys's practice location on file with NPPES is 230 Martin Ave, Naperville, IL 60540-6536.
- What is Katarzyna Slys's phone number?
- The practice phone number listed in the NPPES registry for Katarzyna Slys is (630) 848-1200.
- Is Katarzyna Slys's NPI active?
- Yes — Katarzyna Slys's NPI (1336757459) is active in the NPPES registry as of the last update on 2025-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.