KAREN G MASON FNP
NPI 1184884447
Nurse Practitioner - Family in Queen Creek, AZ
About Karen G Mason Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN G MASON FNP (NPI 1184884447) is an individual family provider in Queen Creek, Arizona, licensed in Arizona (225632) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Karen G Mason Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karen Mason reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Prescott, AZ 86301
- Reassigned Medicare billing, Arizona enrollment
- 214 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 85142 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 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
QUEEN CREEK, AZ 85142
QUEEN CREEK, AZ 85142
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 Karen Mason's NPI number?
The NPI number for Karen Mason is 1184884447. It was assigned to this individual provider in the NPPES registry on June 11, 2008.
Where is Karen Mason located?
Karen Mason practices at 21321 E Ocotillo Rd Ste 133, Queen Creek, AZ 85142. The listed phone number is (480) 987-5525.
What is Karen Mason's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Mason enrolled in Medicare?
Yes. Karen Mason is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karen Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Mason reassigns Medicare benefits to Prescott Healthcare Solutions LLC (Prescott, AZ). 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 Karen 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 Karen Mason was last updated on January 31, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.