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WENDY EILEEN HAYUM-GROSS LCPC NCC
NPI 1376722504
Counselor - Professional in Naperville, IL

Active since October 24, 2007PECOS EnrolledAccepts Medicare Assignment
600 JOSHUA CT, NAPERVILLE, IL 60540(630) 601-4120(630) 983-4176 Get Directions Write a Review

NPPES record last updated: February 3, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Wendy Eileen Hayum-gross Lcpc Ncc NPPES

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

WENDY EILEEN HAYUM-GROSS LCPC NCC (NPI 1376722504) is an individual professional provider in Naperville, Illinois, licensed in Illinois (180.007477) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1376722504
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameWENDY EILEEN HAYUM-GROSSCredential: LCPC NCC
Location Address600 JOSHUA CTNaperville, IL 60540-6329
Mailing Address600 Joshua CtNaperville, IL 60540-6329 · (630) 601-4120 · Fax (630) 983-4176
Phone(630) 601-4120
Fax(630) 983-4176
Sole ProprietorYes
Medical School CMSOtherGraduated 2007
Enumeration DateOctober 24, 2007
Last NPPES UpdateFebruary 3, 2020
✔ NPI 1376722504 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in IL · 180.007477
600 JOSHUA CT, Naperville, IL 60540
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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 and accepts Medicare assignment

Wendy Eileen Hayum-gross Lcpc Ncc 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 ID2961819529
PECOS Enrollment IDI20240404003321
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 Wendy Hayum-gross reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Alw Group Grow
1.8 mi
Counselor
200 E 5TH AVE STE 109
Naperville, IL 60563
  • Reassigned Medicare billing, Illinois enrollment
  • 20 clinicians in this Medicare group
NPI 1023665999 (331) 305-4009

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

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 Wendy Hayum-gross's NPI number?

The NPI number for Wendy Hayum-gross is 1376722504. It was assigned to this individual provider in the NPPES registry on October 24, 2007.

Where is Wendy Hayum-gross located?

Wendy Hayum-gross practices at 600 Joshua Ct, Naperville, IL 60540. The listed phone number is (630) 601-4120.

What is Wendy Hayum-gross's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Wendy Hayum-gross enrolled in Medicare?

Yes. Wendy Hayum-gross 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 organization bills Medicare for Wendy Hayum-gross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Hayum-gross reassigns Medicare benefits to Alw Group Grow (Naperville, 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 Wendy Hayum-gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Wendy Hayum-gross accept?

Health plans from Oscar Health list Wendy Hayum-gross 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 Wendy Hayum-gross was last updated on February 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.