CAROLYN N MILLS MD
NPI 1548354731
Obstetrics & Gynecology in Dekalb, IL
About Carolyn N Mills Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLYN N MILLS MD (NPI 1548354731) is an individual obstetrics & gynecology provider in Dekalb, Illinois, licensed in Illinois (036100945) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and maintains a secondary practice location in Aurora.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Other Identifiers 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
Carolyn N Mills Md 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
3Medicare enrollment records show Carolyn Mills reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, IL 60506
- Reassigned Medicare billing, Illinois enrollment
- 383 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 clinicians in this Medicare group
Berwyn, IL 60402
- Reassigned Medicare billing, Illinois enrollment
- 219 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60115 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.
DEKALB, IL 60115
DEKALB, IL 60115
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 Carolyn Mills's NPI number?
The NPI number for Carolyn Mills is 1548354731. It was assigned to this individual provider in the NPPES registry on October 3, 2006. The provider is also known as Carolyn J Norris.
Where is Carolyn Mills located?
Carolyn Mills practices at 1 Kish Hospital Dr, Dekalb, IL 60115. The listed phone number is (815) 766-7021.
What is Carolyn Mills's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Carolyn Mills enrolled in Medicare?
Yes. Carolyn Mills 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 Carolyn Mills's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Mills reassigns Medicare benefits to 3 organizations: Advocate Health And Hospitals Corporation (Aurora, IL), Central Dupage Physician Group (Carol Stream, IL) and Obhg Illinois Sc (Berwyn, 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 Carolyn Mills's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Carolyn Mills affiliated with any hospitals?
According to CMS data, Carolyn Mills is affiliated with Northwestern Medicine Delnor Community Hospital and Northwestern Medicine Central Dupage Hospital.
When was this NPI record last updated?
The NPPES record for Carolyn Mills was last updated on August 30, 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.
# Carolyn N Mills, MD · NPI 1548354731
Obstetrics & Gynecology physician in Dekalb, Illinois. Individual provider, active in the CMS NPPES registry since October 3, 2006.
## Identity
- **NPI:** 1548354731 (Entity type: Individual)
- **Enumerated:** October 3, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 036100945 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 KISH HOSPITAL DR, Dekalb, IL 60115-9602
- **Phone:** (815) 766-7021 · **Fax:** (815) 758-5690
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Advocate Health And Hospitals Corporation (NPI 1003542184, Aurora, IL); Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL); Obhg Illinois Sc (NPI 1700107216, Berwyn, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 1997
## Record status
- **NPPES last updated:** August 30, 2023
- **Other identifiers:** Medicaid 036100945 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1548354731) · Data from the CMS NPPES public registry.