REBECCA SULLIVAN NP
NPI 1689264061
Nurse Practitioner - Family in Crystal Lake, IL
About Rebecca Sullivan Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA SULLIVAN NP (NPI 1689264061) is an individual family provider in Crystal Lake, Illinois, licensed in Illinois (209022564) and active in the NPI registry since January 2021. She is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and maintains a secondary practice location in West Chicago.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 Sullivan 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 Reassignment
Medicare enrollment records show Rebecca Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- 161 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILPresence Saint Joseph Hospital - Elgin
Acute Care Hospitals · Elgin, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILNorthwestern Medicine Kishwaukee Hospital
Acute Care Hospitals · Dekalb, ILRochelle Community Hospital
Critical Access Hospitals · Rochelle, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60014 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CRYSTAL LAKE, IL 60014
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 Sullivan's NPI number?
The NPI number for Rebecca Sullivan is 1689264061. It was assigned to this individual provider in the NPPES registry on January 20, 2021.
Where is Rebecca Sullivan located?
Rebecca Sullivan practices at 390 E Congress Pkwy Ste C, Crystal Lake, IL 60014. The listed phone number is (815) 301-1001.
What is Rebecca Sullivan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Rebecca Sullivan enrolled in Medicare?
Yes. Rebecca Sullivan 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 Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Sullivan reassigns Medicare benefits to Nephrology Associates Of Northern Illinois, Ltd. (Oak Brook, 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 Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rebecca Sullivan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Rebecca Sullivan 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 Sullivan affiliated with any hospitals?
According to CMS data, Rebecca Sullivan is affiliated with Advocate Sherman Hospital, Presence Saint Joseph Hospital - Elgin, Northwestern Medicine Central Dupage Hospital, Northwestern Medicine Kishwaukee Hospital and Rochelle Community Hospital.
When was this NPI record last updated?
The NPPES record for Rebecca Sullivan was last updated on January 24, 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.
# Rebecca Sullivan, NP · NPI 1689264061
Family physician in Crystal Lake, Illinois. Individual provider, active in the CMS NPPES registry since January 20, 2021.
## Identity
- **NPI:** 1689264061 (Entity type: Individual)
- **Enumerated:** January 20, 2021
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209022564 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 390 E CONGRESS PKWY STE C, Crystal Lake, IL 60014-6202
- **Phone:** (815) 301-1001
## 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:** Nephrology Associates Of Northern Illinois, Ltd. (NPI 1134319924, Oak Brook, 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:** January 24, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1689264061) · Data from the CMS NPPES public registry.