YVONNE OLDAKER CNM/APRN-FPA
NPI 1659757888
Nurse Practitioner in Flossmoor, IL

Q: What is Yvonne Oldaker's NPI number?

The NPI number for Yvonne Oldaker is 1659757888. It was assigned to this individual provider in the NPPES registry on August 11, 2015.

Q: What is Yvonne Oldaker's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Yvonne Oldaker was last updated on January 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.

Active since August 11, 2015PECOS Enrolled

19831 GOVERNORS HWY, FLOSSMOOR, IL 60422(312) 592-6800 Get Directions Write a Review

NPPES record last updated: January 14, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Yvonne Oldaker Cnm/aprn-fpa NPPES

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

YVONNE OLDAKER CNM/APRN-FPA (NPI 1659757888) is an individual nurse practitioner in Flossmoor, Illinois, licensed in Illinois (277003181) and active in the NPI registry since August 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659757888

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameYVONNE OLDAKERCredential: CNM/APRN-FPA

Location Address19831 GOVERNORS HWYFlossmoor, IL 60422-2001

Mailing AddressPo Box 1584Homewood, IL 60430-0584

Phone(312) 592-6800

Sole ProprietorNo

Enumeration DateAugust 11, 2015

Last NPPES UpdateJanuary 14, 2025

NPPES CertifiedJanuary 14, 2025

✔ NPI 1659757888 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 · 277003181

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 ListedAdvanced Practice MidwifeTaxonomy 367A00000X

19831 GOVERNORS HWY, Flossmoor, IL 60422

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Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Yvonne Oldaker Cnm/aprn-fpa 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.

Medicare Billing Reassignment

Medicare enrollment records show Yvonne Oldaker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Little Company Of Mary Affiliated Services Inc

13 mi

Internal Medicine

2800 W 95TH ST
Evergreen Park, IL 60805

Reassigned Medicare billing, Illinois enrollment
67 clinicians in this Medicare group

NPI 1588617260 (708) 229-5171

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60422 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 4

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

DR. SUJATHA PRABHAKARAN M.D.

Obstetrics & Gynecology

19831 GOVERNORS HWY
FLOSSMOOR, IL 60422

Cook County (708) 960-0907

PLANNED PARENTHOOD OF ILLINOIS

Clinic/Center

19831 GOVERNORS HWY
FLOSSMOOR, IL 60422

Cook County (708) 960-0907

MELISSA PARRAM

Case Manager/Care Coordinator

19831 GOVERNORS HWY
FLOSSMOOR, IL 60422

Cook County (312) 592-6799

MS. JAMIA RACHELLE WALKER LCPC

Counselor (Professional)

19831 GOVERNORS HWY
FLOSSMOOR, IL 60422

Cook County (708) 960-0907

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 Yvonne Oldaker's NPI number?

The NPI number for Yvonne Oldaker is 1659757888. It was assigned to this individual provider in the NPPES registry on August 11, 2015.

Where is Yvonne Oldaker located?

Yvonne Oldaker practices at 19831 Governors Hwy, Flossmoor, IL 60422. The listed phone number is (312) 592-6800.

What is Yvonne Oldaker's specialty?

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

Is Yvonne Oldaker enrolled in Medicare?

Yes. Yvonne Oldaker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Yvonne Oldaker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yvonne Oldaker reassigns Medicare benefits to Little Company Of Mary Affiliated Services Inc (Evergreen Park, IL). The 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 Yvonne Oldaker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Yvonne Oldaker accept?

Health plans from Oscar Health list Yvonne Oldaker 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.

When was this NPI record last updated?

The NPPES record for Yvonne Oldaker was last updated on January 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.