JOHN VASKO M.D.
NPI 1336539022
Emergency Medicine in Naperville, IL
About John Vasko M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN VASKO M.D. (NPI 1336539022) is an individual emergency medicine provider in Naperville, Illinois, licensed in Illinois (036.145653) and active in the NPI registry since February 2015. He is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and maintains a secondary practice location in Wheaton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
John Vasko M.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 Reassignments
5Medicare enrollment records show John Vasko reassigns Medicare billing to 5 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
- 268 clinicians in this Medicare group
Bolingbrook, IL 60440
- Reassigned Medicare billing, Illinois enrollment
- 187 clinicians in this Medicare group
Elmhurst, IL 60126
- Reassigned Medicare billing, Illinois enrollment
- 205 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Kankakee, IL 60901
- Reassigned Medicare billing, Illinois enrollment
- 61 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Edward 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.
Other Providers at the Same Location NPPES 20
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 John Vasko's NPI number?
The NPI number for John Vasko is 1336539022. It was assigned to this individual provider in the NPPES registry on February 2, 2015.
Where is John Vasko located?
John Vasko practices at 801 S Washington St, Naperville, IL 60540. The listed phone number is (630) 527-3000.
What is John Vasko's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Vasko enrolled in Medicare?
Yes. John Vasko 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 John Vasko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Vasko reassigns Medicare benefits to 5 organizations: Edward Hospital (Naperville, IL), Illinois Emergency Medicine Specialists, LLC (Bolingbrook, IL), Elmhurst Memorial Hospital (Elmhurst, IL), Endeavor Health Medical Group (Evanston, IL) and Riverside Emergency Physicians, LLC (Kankakee, 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 John Vasko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Vasko affiliated with any hospitals?
According to CMS data, John Vasko is affiliated with Edward Hospital.
When was this NPI record last updated?
The NPPES record for John Vasko was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# John Vasko, M.D. · NPI 1336539022
Emergency Medicine physician in Naperville, Illinois. Individual provider, active in the CMS NPPES registry since February 2, 2015.
## Identity
- **NPI:** 1336539022 (Entity type: Individual)
- **Enumerated:** February 2, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036.145653 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 S WASHINGTON ST, Naperville, IL 60540-7430
- **Phone:** (630) 527-3000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Edward Hospital (NPI 1013969013, Naperville, IL); Illinois Emergency Medicine Specialists, LLC (NPI 1003150962, Bolingbrook, IL); Elmhurst Memorial Hospital (NPI 1548306343, Elmhurst, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); Riverside Emergency Physicians, LLC (NPI 1548969181, Kankakee, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 2015
## Record status
- **NPPES last updated:** December 3, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1336539022) · Data from the CMS NPPES public registry.