MARY JEAN KLEINAITIS NP
NPI 1558166751
Nurse Practitioner - Family in Skokie, IL
About Mary Jean Kleinaitis Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY JEAN KLEINAITIS NP (NPI 1558166751) is an individual family provider in Skokie, Illinois, licensed in Illinois (209029117) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and maintains a secondary practice location in Berwyn.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mary Jean Kleinaitis Np 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60077 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mary Kleinaitis's NPI number?
The NPI number for Mary Kleinaitis is 1558166751. It was assigned to this individual provider in the NPPES registry on February 13, 2025.
Where is Mary Kleinaitis located?
Mary Kleinaitis practices at 9735 Skokie Blvd, Skokie, IL 60077. The listed phone number is (847) 380-8969.
What is Mary Kleinaitis's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Kleinaitis enrolled in Medicare?
Yes. Mary Kleinaitis 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.
Is Mary Kleinaitis affiliated with any hospitals?
According to CMS data, Mary Kleinaitis is affiliated with Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Mary Kleinaitis was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mary Jean Kleinaitis, NP · NPI 1558166751
Family physician in Skokie, Illinois. Individual provider, active in the CMS NPPES registry since February 13, 2025.
## Identity
- **NPI:** 1558166751 (Entity type: Individual)
- **Enumerated:** February 13, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209029117 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 9735 SKOKIE BLVD, Skokie, IL 60077-1383
- **Phone:** (847) 380-8969
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** April 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1558166751) · Data from the CMS NPPES public registry.