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

JACQUELINE SIELAFF
NPI 1083455430
Nurse Practitioner in Crestwood, IL

Active since May 31, 2024PECOS Enrolled
4736 CAL SAG RD STE A, CRESTWOOD, IL 60418(708) 390-7001 Get Directions Write a Review

NPPES record last updated: January 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Jacqueline Sielaff NPPES

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

JACQUELINE SIELAFF (NPI 1083455430) is an individual nurse practitioner in Crestwood, Illinois, licensed in Illinois (209029794) and active in the NPI registry since May 2024. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083455430
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameJACQUELINE SIELAFF
Location Address4736 CAL SAG RD STE ACrestwood, IL 60418-1423
Mailing Address4736 Cal Sag Rd Ste ACrestwood, IL 60418-1423 · (708) 390-7001
Phone(708) 390-7001
Sole ProprietorNo
Enumeration DateMay 31, 2024
Last NPPES UpdateJanuary 28, 2026
NPPES CertifiedJanuary 28, 2026
✔ NPI 1083455430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IL · 209029794
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.
4736 CAL SAG RD STE A, Crestwood, IL 60418
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jacqueline Sielaff is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
12 services12 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60418 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

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

THOMAS I JOSEPH MD
Family Medicine
4736 CAL SAG RD STE A
CRESTWOOD, IL 60418
Cook County (312) 421-1016

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 Jacqueline Sielaff's NPI number?

The NPI number for Jacqueline Sielaff is 1083455430. It was assigned to this individual provider in the NPPES registry on May 31, 2024.

Where is Jacqueline Sielaff located?

Jacqueline Sielaff practices at 4736 Cal Sag Rd Ste A, Crestwood, IL 60418. The listed phone number is (708) 390-7001.

What is Jacqueline Sielaff's specialty?

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

Is Jacqueline Sielaff enrolled in Medicare?

Yes. Jacqueline Sielaff is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jacqueline Sielaff was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.