April Sliwka
NPI 1881185171 · Physical Therapist · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
April Sliwka is a Physical Therapist provider in Crystal Lake, IL (NPI 1881185171).
Provider details
- NPI number
- 1881185171
- 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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,793 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 781 | $20 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 734 | $25 |
| Therapy Procedure Using Functional Activities97530 | 180 | $31 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 61 | $18 |
| Evaluation for Physical Therapy, Typically 20 Minutes97161 | 20 | $90 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 17 | $90 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-23
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is April Sliwka's NPI number?
- April Sliwka's National Provider Identifier (NPI) is 1881185171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is April Sliwka's specialty?
- April Sliwka is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is April Sliwka located?
- April Sliwka's practice location on file with NPPES is 110 W Woodstock St Ste a, Crystal Lake, IL 60014-4239.
- What is April Sliwka's phone number?
- The practice phone number listed in the NPPES registry for April Sliwka is (815) 893-9075.
- Does April Sliwka accept Medicare?
- April Sliwka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is April Sliwka's NPI active?
- Yes — April Sliwka's NPI (1881185171) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.