REBECCA LEE ARENSON DNP, FNP-BC
NPI 1881272599
Family Medicine in Oak Park, IL
About Rebecca Lee Arenson Dnp, Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA LEE ARENSON DNP, FNP-BC (NPI 1881272599) is an individual family medicine provider in Oak Park, Illinois, licensed in Illinois (209.021782) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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
Rebecca Lee Arenson Dnp, Fnp-bc 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 Rebecca Arenson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Cimpar Sc
- 70 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 3
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 60302 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.
OAK PARK, IL 60302
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 Rebecca Arenson's NPI number?
The NPI number for Rebecca Arenson is 1881272599. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Rebecca Arenson located?
Rebecca Arenson practices at 101 Madison St Ste 300, Oak Park, IL 60302. The listed phone number is (708) 486-2700.
What is Rebecca Arenson's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Rebecca Arenson enrolled in Medicare?
Yes. Rebecca Arenson 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 Rebecca Arenson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Arenson reassigns Medicare benefits to Cimpar, S.C. (Oak Park, 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 Rebecca Arenson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rebecca Arenson accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Rebecca Arenson 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 Rebecca Arenson affiliated with any hospitals?
According to CMS data, Rebecca Arenson is affiliated with Edward Hospital.
When was this NPI record last updated?
The NPPES record for Rebecca Arenson was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Rebecca Lee Arenson, DNP, FNP-BC · NPI 1881272599
Family Medicine physician in Oak Park, Illinois. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1881272599 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 209.021782 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 MADISON ST STE 300, Oak Park, IL 60302-4210
- **Phone:** (708) 486-2700
## 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:** Cimpar, S.C. (NPI 1467496224, Oak Park, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** August 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1881272599) · Data from the CMS NPPES public registry.