DR. JEFF R MASON M.D.
NPI 1174592588
Orthopaedic Surgery in Everett, WA
About Dr. Jeff R Mason M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFF R MASON M.D. (NPI 1174592588) is an individual orthopaedic surgery provider in Everett, Washington, licensed in Washington (MD00030797) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Jeff R Mason M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jeff Mason reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 589 clinicians in this Medicare group
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.
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 Jeff Mason's NPI number?
The NPI number for Jeff Mason is 1174592588. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Jeff Mason located?
Jeff Mason practices at 1100 Pacific Ave Suite 300, Everett, WA 98201. The listed phone number is (425) 339-2433.
What is Jeff Mason's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Jeff Mason enrolled in Medicare?
Yes. Jeff Mason is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jeff Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeff Mason reassigns Medicare benefits to 2 organizations: Proliance Surgeons, Inc., P.S. (Everett, WA) and Optum Care Washington PLLC (Everett, WA). 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 Jeff Mason'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 Jeff Mason was last updated on March 27, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Jeff R Mason, M.D. · NPI 1174592588
Orthopaedic Surgery physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1174592588 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** MD00030797 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 PACIFIC AVE, SUITE 300, Everett, WA 98201-4261
- **Phone:** (425) 339-2433 · **Fax:** (425) 339-8273
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Proliance Surgeons, Inc., P.S. (NPI 1750320701, Everett, WA); Optum Care Washington PLLC (NPI 1831186766, Everett, WA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 27, 2014
- **Other identifiers:** Medicare UPIN F61922 (WA); Medicare ID-Type Unspecified AB04758 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1174592588) · Data from the CMS NPPES public registry.