JOHN JOSEPH STRYKER NP
NPI 1427281336
Nurse Practitioner - Family in Chicago, IL
About John Joseph Stryker Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN JOSEPH STRYKER NP (NPI 1427281336) is an individual family provider in Chicago, Illinois, licensed in Illinois (209-007857) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses 2
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
John Joseph Stryker 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.
Medicare Billing Reassignments
4Medicare enrollment records show John Stryker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60640
- Reassigned Medicare billing, Illinois enrollment
- 143 clinicians in this Medicare group
Chicago, IL 60640
- Reassigned Medicare billing, Illinois enrollment
- 11 clinicians in this Medicare group
Chicago, IL 60625
- Reassigned Medicare billing, Illinois enrollment
- 383 clinicians in this Medicare group
Chicago, IL 60613
- Reassigned Medicare billing, Illinois enrollment
- 2,127 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.
Advocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60640 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60640
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 Stryker's NPI number?
The NPI number for John Stryker is 1427281336. It was assigned to this individual provider in the NPPES registry on August 25, 2009.
Where is John Stryker located?
John Stryker practices at 5537 N Broadway St, Chicago, IL 60640. The listed phone number is (737) 989-9400.
What is John Stryker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is John Stryker enrolled in Medicare?
Yes. John Stryker 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 Stryker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Stryker reassigns Medicare benefits to 4 organizations: Howard Brown Health Center (Chicago, IL), Tpa Network Incorporated (Chicago, IL), Erie Family Health Center Inc. (Chicago, IL) and The Board Of Trustees Of The University Of Illinois (Chicago, 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 Stryker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Stryker accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list John Stryker 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 John Stryker affiliated with any hospitals?
According to CMS data, John Stryker is affiliated with Advocate Illinois Masonic Medical Center.
When was this NPI record last updated?
The NPPES record for John Stryker was last updated on March 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 Joseph Stryker, NP · NPI 1427281336
Family physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since August 25, 2009.
## Identity
- **NPI:** 1427281336 (Entity type: Individual)
- **Enumerated:** August 25, 2009
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209-007857 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 5537 N BROADWAY ST, Chicago, IL 60640-1405
- **Phone:** (737) 989-9400 · **Fax:** (773) 754-0260
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Howard Brown Health Center (NPI 1356876387, Chicago, IL); Tpa Network Incorporated (NPI 1174896914, Chicago, IL); Erie Family Health Center Inc. (NPI 1164713129, Chicago, IL); The Board Of Trustees Of The University Of Illinois (NPI 1588815401, Chicago, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** March 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1427281336) · Data from the CMS NPPES public registry.