ALYSSA DAWN MCMILLEN
NPI 1790595635
Nurse Practitioner in Carbondale, IL
About Alyssa Dawn Mcmillen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA DAWN MCMILLEN (NPI 1790595635) is an individual nurse practitioner in Carbondale, Illinois, licensed in Illinois (209031368) and active in the NPI registry since January 2025. She is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Alyssa Dawn Mcmillen 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 Alyssa Mcmillen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Herrin Hospital
Acute Care Hospitals · Herrin, ILMemorial Hospital Of Carbondale
Acute Care Hospitals · Carbondale, ILFranklin Hospital
Critical Access Hospitals · Benton, ILMarshall Browning Hospital
Critical Access Hospitals · Du Quoin, ILSt Joseph Memorial Hospital
Critical Access Hospitals · Murphysboro, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62901 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.
CARBONDALE, IL 62901
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 Alyssa Mcmillen's NPI number?
The NPI number for Alyssa Mcmillen is 1790595635. It was assigned to this individual provider in the NPPES registry on January 13, 2025.
Where is Alyssa Mcmillen located?
Alyssa Mcmillen practices at 409 W Oak St, Carbondale, IL 62901. The listed phone number is (618) 529-4455.
What is Alyssa Mcmillen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Alyssa Mcmillen enrolled in Medicare?
Yes. Alyssa Mcmillen 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 Alyssa Mcmillen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Mcmillen reassigns Medicare benefits to Southern Illinois Medical Services, Nfp (Carbondale, 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 Alyssa Mcmillen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alyssa Mcmillen affiliated with any hospitals?
According to CMS data, Alyssa Mcmillen is affiliated with Herrin Hospital, Memorial Hospital Of Carbondale, Franklin Hospital, Marshall Browning Hospital and St Joseph Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Alyssa Mcmillen was last updated on February 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Alyssa Dawn Mcmillen · NPI 1790595635
Nurse Practitioner physician in Carbondale, Illinois. Individual provider, active in the CMS NPPES registry since January 13, 2025.
## Identity
- **NPI:** 1790595635 (Entity type: Individual)
- **Enumerated:** January 13, 2025
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 209031368 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 409 W OAK ST, Carbondale, IL 62901-1464
- **Phone:** (618) 529-4455 · **Fax:** (618) 351-1287
## 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:** Southern Illinois Medical Services, Nfp (NPI 1770656837, Carbondale, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** February 25, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1790595635) · Data from the CMS NPPES public registry.