ALYSSA MILLIRON MD
NPI 1033640099
Internal Medicine in Chico, CA
About Alyssa Milliron Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA MILLIRON MD (NPI 1033640099) is an individual internal medicine provider in Chico, California, licensed in California (A157920) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS and is a graduate of Un Of California, Irvine, College Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses
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 Milliron 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
2Medicare enrollment records show Alyssa Milliron reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chico, CA 95926
- Reassigned Medicare billing, California enrollment
- 126 clinicians in this Medicare group
Chico, CA 95926
- Reassigned Medicare billing, California enrollment
- 53 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95926 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
CHICO, CA 95926
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 Milliron's NPI number?
The NPI number for Alyssa Milliron is 1033640099. It was assigned to this individual provider in the NPPES registry on March 22, 2017.
Where is Alyssa Milliron located?
Alyssa Milliron practices at 680 Cohasset Rd, Chico, CA 95926. The listed phone number is (530) 342-4395.
What is Alyssa Milliron's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alyssa Milliron enrolled in Medicare?
Yes. Alyssa Milliron 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 Alyssa Milliron's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Milliron reassigns Medicare benefits to 2 organizations: Ampla Health (Chico, CA) and Enloe Health And Wellness (Chico, CA). 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 Alyssa Milliron's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alyssa Milliron was last updated on May 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.