CATHERINE MAYA STACHNIK D.O.
NPI 1740572247
Psychiatry & Neurology - Neurology in Naperville, IL
About Catherine Maya Stachnik D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE MAYA STACHNIK D.O. (NPI 1740572247) is an individual neurology provider in Naperville, Illinois, licensed in Illinois (036135390) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with Elmhurst Memorial Hospital, and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
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
Catherine Maya Stachnik D.o. 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 Reassignments
3Medicare enrollment records show Catherine Stachnik reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Naperville, IL 60540
- Reassigned Medicare billing, Illinois enrollment
- 561 clinicians in this Medicare group
Naperville, IL 60540
- Reassigned Medicare billing, Illinois enrollment
- 268 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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.
Areas of Expertise CMS Part B claims 11
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Elmhurst Memorial Hospital
Acute Care Hospitals · Elmhurst, ILEdward Hospital
Acute Care Hospitals · Naperville, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60540 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NAPERVILLE, IL 60540
NAPERVILLE, IL 60540
NAPERVILLE, IL 60540
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 Catherine Stachnik's NPI number?
The NPI number for Catherine Stachnik is 1740572247. It was assigned to this individual provider in the NPPES registry on May 3, 2011. The provider is also known as Catherine Kowalczyk.
Where is Catherine Stachnik located?
Catherine Stachnik practices at 120 Spalding Dr Ste 308, Naperville, IL 60540. The listed phone number is (630) 527-7730.
What is Catherine Stachnik's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Catherine Stachnik enrolled in Medicare?
Yes. Catherine Stachnik 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 organizations bill Medicare for Catherine Stachnik's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Stachnik reassigns Medicare benefits to 3 organizations: Edward Health Ventures (Naperville, IL), Edward Hospital (Naperville, IL) and Endeavor Health Medical Group (Evanston, IL). Each 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 Catherine Stachnik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Stachnik accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Catherine Stachnik 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.
Is Catherine Stachnik affiliated with any hospitals?
According to CMS data, Catherine Stachnik is affiliated with Elmhurst Memorial Hospital and Edward Hospital.
When was this NPI record last updated?
The NPPES record for Catherine Stachnik was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.
# Catherine Maya Stachnik, D.O. · NPI 1740572247
Neurology physician in Naperville, Illinois. Individual provider, active in the CMS NPPES registry since May 3, 2011.
## Identity
- **NPI:** 1740572247 (Entity type: Individual)
- **Enumerated:** May 3, 2011
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 036135390 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 120 SPALDING DR STE 308, Naperville, IL 60540-6521
- **Phone:** (630) 527-7730 · **Fax:** (630) 527-7732
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Edward Health Ventures (NPI 1538450838, Naperville, IL); Edward Hospital (NPI 1013969013, Naperville, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2011
## Record status
- **NPPES last updated:** October 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740572247) · Data from the CMS NPPES public registry.