DR. JOSEPH GRYZBEK PSY.D.
NPI 1538513213
Psychologist in Naperville, IL
About Dr. Joseph Gryzbek Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH GRYZBEK PSY.D. (NPI 1538513213) is an individual psychologist in Naperville, Illinois, licensed in Illinois (071.009076) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Dr. Joseph Gryzbek Psy.d. 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.
Medicare Billing Reassignment
Medicare enrollment records show Joseph Gryzbek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Naperville, IL 60563
- Reassigned Medicare billing, Illinois enrollment
- 4 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NAPERVILLE, IL 60563
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 Joseph Gryzbek's NPI number?
The NPI number for Joseph Gryzbek is 1538513213. It was assigned to this individual provider in the NPPES registry on April 19, 2016.
Where is Joseph Gryzbek located?
Joseph Gryzbek practices at 1979 N Mill St Ste 204, Naperville, IL 60563. The listed phone number is (630) 474-1171.
What is Joseph Gryzbek's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Joseph Gryzbek enrolled in Medicare?
Yes. Joseph Gryzbek 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 Joseph Gryzbek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Gryzbek reassigns Medicare benefits to Gryzbek Therapy Services LLC (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 Joseph Gryzbek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Gryzbek accept?
Health plans from Oscar Health list Joseph Gryzbek 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 Joseph Gryzbek was last updated on August 31, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.