DR. CYNTHIA LYNN MASON M.D.
NPI 1295702140
Family Medicine in West Allis, WI
About Dr. Cynthia Lynn Mason M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CYNTHIA LYNN MASON M.D. (NPI 1295702140) is an individual family medicine provider in West Allis, Wisconsin, licensed in Wisconsin (29477-020) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Cynthia Lynn Mason M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53214 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 Cynthia Mason's NPI number?
The NPI number for Cynthia Mason is 1295702140. It was assigned to this individual provider in the NPPES registry on February 28, 2006.
Where is Cynthia Mason located?
Cynthia Mason practices at 555 S 108th St, West Allis, WI 53214. The listed phone number is (414) 566-6400.
What is Cynthia Mason's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Cynthia Mason enrolled in Medicare?
Yes. Cynthia Mason is registered in the Medicare PECOS enrollment system.
When was this NPI record last updated?
The NPPES record for Cynthia Mason was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.