ALLISON BECCA STEIN LIEB RN, BSN, MSN, WHNP-B
NPI 1447625009
Nurse Practitioner in Lake Forest, IL
About Allison Becca Stein Lieb Rn, Bsn, Msn, Whnp-b NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON BECCA STEIN LIEB RN, BSN, MSN, WHNP-B (NPI 1447625009) is an individual nurse practitioner in Lake Forest, Illinois, licensed in Illinois (209013605) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2015).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 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
Allison Becca Stein Lieb Rn, Bsn, Msn, Whnp-b 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
2Medicare enrollment records show Allison Stein Lieb reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 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
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.
Northwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60045 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.
LAKE FOREST, IL 60045
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 Allison Stein Lieb's NPI number?
The NPI number for Allison Stein Lieb is 1447625009. It was assigned to this individual provider in the NPPES registry on December 8, 2015. The provider is also known as Allison Becca Stein.
Where is Allison Stein Lieb located?
Allison Stein Lieb practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. The listed phone number is (312) 694-7337.
What is Allison Stein Lieb's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Allison Stein Lieb enrolled in Medicare?
Yes. Allison Stein Lieb 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 Allison Stein Lieb's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Stein Lieb reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and Central Dupage Physician Group (Carol Stream, 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 Allison Stein Lieb's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Allison Stein Lieb affiliated with any hospitals?
According to CMS data, Allison Stein Lieb is affiliated with Northwestern Lake Forest Hospital.
When was this NPI record last updated?
The NPPES record for Allison Stein Lieb was last updated on September 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Allison Becca Stein Lieb, RN, BSN, MSN, WHNP-B · NPI 1447625009
Nurse Practitioner physician in Lake Forest, Illinois. Individual provider, active in the CMS NPPES registry since December 8, 2015.
## Identity
- **NPI:** 1447625009 (Entity type: Individual)
- **Enumerated:** December 8, 2015
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 209013605 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 N WESTMORELAND RD, Lake Forest, IL 60045-1658
- **Phone:** (312) 694-7337 · **Fax:** (312) 694-9116
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL); Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2015
## Record status
- **NPPES last updated:** September 7, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1447625009) · Data from the CMS NPPES public registry.