MARK CARLSON
NPI 1326016825
Family Medicine in Everett, WA
About Mark Carlson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK CARLSON (NPI 1326016825) is an individual family medicine provider in Everett, Washington, licensed in Washington (MD00024510) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Mukilteo.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark Carlson is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Carlson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 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 10
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 98201 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.
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 Mark Carlson's NPI number?
The NPI number for Mark Carlson is 1326016825. It was assigned to this individual provider in the NPPES registry on March 9, 2006.
Where is Mark Carlson located?
Mark Carlson practices at 3927 Rucker Ave, Everett, WA 98201. The listed phone number is (425) 339-5422.
What is Mark Carlson's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mark Carlson enrolled in Medicare?
Yes. Mark Carlson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Carlson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Carlson reassigns Medicare benefits to Optum Care Washington PLLC (Everett, 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 Mark Carlson'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 Mark Carlson was last updated on September 14, 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.