MS. ANNETTE W. SEREIKA APN-CNP
NPI 1265710321
Nurse Practitioner in Evanston, IL
About Ms. Annette W. Sereika Apn-cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ANNETTE W. SEREIKA APN-CNP (NPI 1265710321) is an individual nurse practitioner in Evanston, Illinois, licensed in Illinois (209008848) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses 2
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
Ms. Annette W. Sereika Apn-cnp 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 Annette Sereika reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
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 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.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60201 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EVANSTON, IL 60201
EVANSTON, IL 60201
EVANSTON, IL 60201
EVANSTON, IL 60201
EVANSTON, IL 60201
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 Annette Sereika's NPI number?
The NPI number for Annette Sereika is 1265710321. It was assigned to this individual provider in the NPPES registry on July 23, 2011.
Where is Annette Sereika located?
Annette Sereika practices at 2650 Ridge Ave. Kellogg Cancer Center, Evanston, IL 60201. The listed phone number is (847) 570-2735.
What is Annette Sereika's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Annette Sereika enrolled in Medicare?
Yes. Annette Sereika 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 Annette Sereika's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annette Sereika reassigns Medicare benefits to Endeavor Health Medical Group (Evanston, 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 Annette Sereika's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Annette Sereika affiliated with any hospitals?
According to CMS data, Annette Sereika is affiliated with Northshore University Healthsystem - Evanston Hospital.
When was this NPI record last updated?
The NPPES record for Annette Sereika was last updated on October 15, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Ms. Annette W. Sereika, APN-CNP · NPI 1265710321
Nurse Practitioner physician in Evanston, Illinois. Individual provider, active in the CMS NPPES registry since July 23, 2011.
## Identity
- **NPI:** 1265710321 (Entity type: Individual)
- **Enumerated:** July 23, 2011
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 209008848 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2650 RIDGE AVE., KELLOGG CANCER CENTER, Evanston, IL 60201
- **Phone:** (847) 570-2735 · **Fax:** (847) 733-5294
## 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:** Endeavor Health Medical Group (NPI 1265695944, Evanston, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** October 15, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1265710321) · Data from the CMS NPPES public registry.