ALISON MARISSA HIXON MD, PHD
NPI 1700454956
Internal Medicine - Infectious Disease in Boise, ID
About Alison Marissa Hixon Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON MARISSA HIXON MD, PHD (NPI 1700454956) is an individual infectious disease provider in Boise, Idaho, licensed in Idaho (3481800) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with St Luke's Regional Medical Center, and is a graduate of Other (2021).
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
Alison Marissa Hixon Md, Phd 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 Alison Hixon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boise, ID 83712
- Reassigned Medicare billing, Idaho enrollment
- 1,312 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.
St Luke's Regional Medical Center
Acute Care Hospitals · Boise, IDBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 83712 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOISE, ID 83712
BOISE, ID 83712
BOISE, ID 83712
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 Alison Hixon's NPI number?
The NPI number for Alison Hixon is 1700454956. It was assigned to this individual provider in the NPPES registry on June 15, 2021.
Where is Alison Hixon located?
Alison Hixon practices at 125 E Idaho St, Boise, ID 83712. The listed phone number is (208) 381-1950.
What is Alison Hixon's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Alison Hixon enrolled in Medicare?
Yes. Alison Hixon 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 Alison Hixon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Hixon reassigns Medicare benefits to St Lukes Clinic-Treasure Valley LLC (Boise, ID). 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 Alison Hixon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alison Hixon accept?
Health plans from Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Select Health list Alison Hixon 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 Alison Hixon affiliated with any hospitals?
According to CMS data, Alison Hixon is affiliated with St Luke's Regional Medical Center and Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Alison Hixon was last updated on July 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Alison Marissa Hixon, MD, PHD · NPI 1700454956
Infectious Disease physician in Boise, Idaho. Individual provider, active in the CMS NPPES registry since June 15, 2021.
## Identity
- **NPI:** 1700454956 (Entity type: Individual)
- **Enumerated:** June 15, 2021
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 3481800 (Idaho)
- **Sole proprietor:** No
## Practice location
- **Address:** 125 E IDAHO ST, Boise, ID 83712-6212
- **Phone:** (208) 381-1950 · **Fax:** (208) 381-1951
## 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:** St Lukes Clinic-Treasure Valley LLC (NPI 1326336058, Boise, ID), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 31, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1700454956) · Data from the CMS NPPES public registry.