ALLISON ISAACSON
NPI 1841956802
Counselor - Mental Health in Eureka, CA
About Allison Isaacson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON ISAACSON (NPI 1841956802) is an individual mental health provider in Eureka, California, licensed in California (ASW87688) and active in the NPI registry since November 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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
Allison Isaacson 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 Allison Isaacson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Quincy, CA 95971
- Reassigned Medicare billing, California enrollment
- 4 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.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EUREKA, CA 95503
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 Allison Isaacson's NPI number?
The NPI number for Allison Isaacson is 1841956802. It was assigned to this individual provider in the NPPES registry on November 15, 2021.
Where is Allison Isaacson located?
Allison Isaacson practices at 800 W Harris St Ste 33, Eureka, CA 95503. The listed phone number is (707) 296-7660.
What is Allison Isaacson's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Allison Isaacson enrolled in Medicare?
Yes. Allison Isaacson 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 Allison Isaacson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Isaacson reassigns Medicare benefits to County Of Plumas (Quincy, CA). 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 Allison Isaacson'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 Allison Isaacson was last updated on November 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Allison Isaacson · NPI 1841956802
Mental Health provider in Eureka, California. Individual provider, active in the CMS NPPES registry since November 15, 2021.
## Identity
- **NPI:** 1841956802 (Entity type: Individual)
- **Enumerated:** November 15, 2021
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** ASW87688 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 W HARRIS ST STE 33, Eureka, CA 95503-3929
- **Phone:** (707) 296-7660
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** County Of Plumas (NPI 1750466348, Quincy, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 15, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1841956802) · Data from the CMS NPPES public registry.