PEGGY SIEGELE APN
NPI 1720456007
Nurse Practitioner in Downers Grove, IL
About Peggy Siegele Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PEGGY SIEGELE APN (NPI 1720456007) is an individual nurse practitioner in Downers Grove, Illinois, licensed in Illinois (209013120) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with Advocate Lutheran General Hospital, and is a graduate of Other (2009).
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
Peggy Siegele Apn 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 Peggy Siegele reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 4,870 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 Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60515 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
DOWNERS GROVE, IL 60515
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 Peggy Siegele's NPI number?
The NPI number for Peggy Siegele is 1720456007. It was assigned to this individual provider in the NPPES registry on September 3, 2015.
Where is Peggy Siegele located?
Peggy Siegele practices at 1441 Branding Ave, Downers Grove, IL 60515. The listed phone number is (630) 572-9393.
What is Peggy Siegele's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Peggy Siegele enrolled in Medicare?
Yes. Peggy Siegele 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 Peggy Siegele's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peggy Siegele reassigns Medicare benefits to Advocate Health And Hospitals Corporation (Downers Grove, 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 Peggy Siegele's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peggy Siegele accept?
Health plans from Oscar Health list Peggy Siegele 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 Peggy Siegele affiliated with any hospitals?
According to CMS data, Peggy Siegele is affiliated with Advocate Lutheran General Hospital.
When was this NPI record last updated?
The NPPES record for Peggy Siegele was last updated on January 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Peggy Siegele, APN · NPI 1720456007
Nurse Practitioner physician in Downers Grove, Illinois. Individual provider, active in the CMS NPPES registry since September 3, 2015.
## Identity
- **NPI:** 1720456007 (Entity type: Individual)
- **Enumerated:** September 3, 2015
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 209013120 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1441 BRANDING AVE, Downers Grove, IL 60515-1160
- **Phone:** (630) 572-9393
## 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:** Advocate Health And Hospitals Corporation (NPI 1578670543, Downers Grove, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** January 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1720456007) · Data from the CMS NPPES public registry.