Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CYNTHIA LYNN MASON M.D.
NPI 1295702140
Family Medicine in West Allis, WI

Active since February 28, 2006PECOS Enrolled
555 S 108TH ST, WEST ALLIS, WI 53214(414) 566-6400(414) 566-3866 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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

NPI1295702140
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. CYNTHIA LYNN MASONCredential: M.D.
Location Address555 S 108TH STWest Allis, WI 53214-1100
Mailing Address555 S 108th StWest Allis, WI 53214-1100 · (414) 566-6400 · Fax (414) 566-3866
Fax(414) 566-3866
Sole ProprietorNo
Enumeration DateFebruary 28, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1295702140 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in WI · 29477-020
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
555 S 108TH ST, West Allis, WI 53214

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).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Pediatrics
555 S 108TH ST
WEST ALLIS, WI 53214
Clinic/Center (Multi-Specialty)
555 S 108TH ST
WEST ALLIS, WI 53214
Specialist/Technologist (Athletic Trainer)
555 S 108TH ST
WEST ALLIS, WI 53214
Dentist (General Practice)
555 S 108TH ST
WEST ALLIS, WI 53214
Obstetrics & Gynecology
555 S 108TH ST
WEST ALLIS, WI 53214
Physician Assistant
555 S 108TH ST
WEST ALLIS, WI 53214
Clinic/Center (Dental)
555 S 108TH ST
WEST ALLIS, WI 53214
Optometrist
555 S 108TH ST
WEST ALLIS, WI 53214

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.