ZACHARY JOHN CARLSON SR.
NPI 1285285098
Counselor - Mental Health in Bellevue, WA
About Zachary John Carlson Sr. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY JOHN CARLSON SR. (NPI 1285285098) is an individual mental health provider in Bellevue, Washington, licensed in Washington (LH61351259) and active in the NPI registry since September 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 3
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
Zachary John Carlson Sr. 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 Zachary Carlson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98133
- Reassigned Medicare billing, Washington enrollment
- 35 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BELLEVUE, WA 98007
BELLEVUE, WA 98007
BELLEVUE, WA 98007
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 Zachary Carlson's NPI number?
The NPI number for Zachary Carlson is 1285285098. It was assigned to this individual provider in the NPPES registry on September 23, 2019.
Where is Zachary Carlson located?
Zachary Carlson practices at 14270 NE 21st St, Bellevue, WA 98007. The listed phone number is (425) 653-5010.
What is Zachary Carlson's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Zachary Carlson enrolled in Medicare?
Yes. Zachary Carlson 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 Zachary Carlson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Carlson reassigns Medicare benefits to Thriveworks Clinical - Washington, PC (Seattle, WA). 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 Zachary Carlson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Carlson accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Zachary Carlson 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.
When was this NPI record last updated?
The NPPES record for Zachary Carlson was last updated on March 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Zachary John Carlson Sr. · NPI 1285285098
Mental Health provider in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since September 23, 2019.
## Identity
- **NPI:** 1285285098 (Entity type: Individual)
- **Enumerated:** September 23, 2019
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** LH61351259 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 14270 NE 21ST ST, Bellevue, WA 98007-3720
- **Phone:** (425) 653-5010
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Thriveworks Clinical - Washington, PC (NPI 1063087856, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** March 6, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1285285098) · Data from the CMS NPPES public registry.