1. Home
  2. Directory
  3. Illinois
  4. Oak Lawn
  5. Nurse Practitioner
  6. NPI Profile

LAUREN WISLOCKI FNP-BC
NPI 1427866706
Nurse Practitioner in Oak Lawn, IL

Active since December 19, 2024PECOS EnrolledAccepts Medicare Assignment
4440 W 95TH ST FL 8, OAK LAWN, IL 60453(708) 684-4200(708) 520-1885 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 2, 2026, Apr 11, 2025, Dec 19, 2024 (3 updates tracked since 2024).

About Lauren Wislocki Fnp-bc NPPES

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

LAUREN WISLOCKI FNP-BC (NPI 1427866706) is an individual nurse practitioner in Oak Lawn, Illinois, licensed in Illinois (209031934) and active in the NPI registry since December 2024. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1427866706
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameLAUREN WISLOCKICredential: FNP-BC
Location Address4440 W 95TH ST FL 8Oak Lawn, IL 60453-2600
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900 · Fax (847) 390-4757
Phone(708) 684-4200
Fax(708) 520-1885
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateDecember 19, 2024
Last NPPES UpdateFebruary 2, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2026
✔ NPI 1427866706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IL · 209031934
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License 041503296 (IL)
4440 W 95TH ST FL 8, Oak Lawn, IL 60453
Open in Google Maps ↗

Other Names 1

Other Name (5)Lauren Blake

Secondary Practice Locations 3

Location 13105 Blandford AveNew Lenox, IL 60451-8627 · Phone (773) 853-7871
Location 217850 Kedzie Ave Ste 2200Hazel Crest, IL 60429-2056 · Phone (708) 575-4411 · Fax (708) 575-4412
Location 35841 S MARYLAND AVEChicago, IL 60637-1443 · Phone (888) 824-0200

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health.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

Lauren Wislocki Fnp-bc 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 ID5496270332
PECOS Enrollment IDI20250423001590
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

3

Medicare enrollment records show Lauren Wislocki reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health & Hospitals Corporation
Same address
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900
The University Of Chicago Medical Center
8.1 mi
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 635 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
8.1 mi
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

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 3

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

The University Of Chicago Medical Center

Acute Care Hospitals · Chicago, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140088
Location5841 South MarylandChicago, IL 60637 · Cook County
Emergency services Birthing friendly

Ingalls Memorial Hospital

Acute Care Hospitals · Harvey, IL
2/5 CMS rating
OwnershipPhysician
CMS Certification Number140191
Location1 Ingalls DriveHarvey, IL 60426 · Cook County
Emergency services Birthing friendly

Silver Cross Hospital And Medical Centers

Acute Care Hospitals · New Lenox, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140213
Location1900 Silver Cross BlvdNew Lenox, IL 60451 · Will County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
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 15

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

MS. LINDSAY GRACE TAYLOR
Physician Assistant
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-4200
CAROLINE M PILEWICZ NP
Nurse Practitioner (Family)
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-4200
IMRAN AHMED NIZAMUDDIN MD
Internal Medicine (Hematology & Oncology)
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-5267
PRASHANT KUMAR JOSHI M.D.
Internal Medicine (Medical Oncology)
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-4200
RIAZ ELAHI MD
Internal Medicine (Hematology & Oncology)
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-4200
EMMA ELIZABETH NUNLEY APRN, CNP
Nurse Practitioner
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 684-4200
KATHERINE KEARNEY MCGINNIS
Physician Assistant
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 346-4055
INAYA SULTAN AHMED PA-C
Physician Assistant
4440 W 95TH ST FL 8
OAK LAWN, IL 60453
Cook County (708) 346-4055

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 Lauren Wislocki's NPI number?

The NPI number for Lauren Wislocki is 1427866706. It was assigned to this individual provider in the NPPES registry on December 19, 2024. The provider is also known as Lauren Blake.

Where is Lauren Wislocki located?

Lauren Wislocki practices at 4440 W 95th St Fl 8, Oak Lawn, IL 60453. The listed phone number is (708) 684-4200.

What is Lauren Wislocki's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lauren Wislocki enrolled in Medicare?

Yes. Lauren Wislocki 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 Lauren Wislocki's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Wislocki reassigns Medicare benefits to 3 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). 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 Lauren Wislocki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lauren Wislocki accept?

Health plans from Ambetter Health list Lauren Wislocki 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 Lauren Wislocki affiliated with any hospitals?

According to CMS data, Lauren Wislocki is affiliated with The University Of Chicago Medical Center, Ingalls Memorial Hospital and Silver Cross Hospital And Medical Centers.

When was this NPI record last updated?

The NPPES record for Lauren Wislocki was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.