CYNTHIA LYNN MAYER DO
NPI 1689824849
Nuclear Medicine in Torrance, CA
About Cynthia Lynn Mayer Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CYNTHIA LYNN MAYER DO (NPI 1689824849) is an individual nuclear medicine provider in Torrance, California, licensed in California (204 7301) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Cynthia Lynn Mayer Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Cynthia Mayer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Kamuela, HI 96743
- Reassigned Medicare billing, Hawaii enrollment
- 277 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 859 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 4
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 90503 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.
TORRANCE, CA 90503
TORRANCE, CA 90503
TORRANCE, CA 90503
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 Mayer's NPI number?
The NPI number for Cynthia Mayer is 1689824849. It was assigned to this individual provider in the NPPES registry on September 24, 2008.
Where is Cynthia Mayer located?
Cynthia Mayer practices at 4101 Torrance Blvd Little Company Of Mary Hospital, Torrance, CA 90503. The listed phone number is (310) 303-5764.
What is Cynthia Mayer's specialty?
The primary specialty registered for this NPI is Nuclear Medicine with taxonomy code 207U00000X.
Is Cynthia Mayer enrolled in Medicare?
Yes. Cynthia Mayer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Cynthia Mayer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Mayer reassigns Medicare benefits to 2 organizations: Queens North Hawaii Community Hospital (Kamuela, HI) and Queens University Medical Group (Honolulu, HI). 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 Cynthia Mayer'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 Cynthia Mayer was last updated on September 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.