MS. CHRISTINE MAYOR APN
NPI 1922240779
Nurse Practitioner - Pediatrics in Concord, CA
About Ms. Christine Mayor Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. CHRISTINE MAYOR APN (NPI 1922240779) is an individual pediatrics provider in Concord, California, licensed in California (21798) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Christine Mayor Apn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Christine Mayor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94108
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: City & County Of San Francisco
- 1,573 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 94520 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 3
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 Christine Mayor's NPI number?
The NPI number for Christine Mayor is 1922240779. It was assigned to this individual provider in the NPPES registry on March 25, 2009.
Where is Christine Mayor located?
Christine Mayor practices at 2299 Bacon St Ste 7, Concord, CA 94520. The listed phone number is (925) 676-6500.
What is Christine Mayor's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Christine Mayor enrolled in Medicare?
Yes. Christine Mayor is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Christine Mayor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Mayor reassigns Medicare benefits to City And Couny Of San Francisco (San Francisco, CA). 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 Christine Mayor'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 Christine Mayor was last updated on February 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.
# Ms. Christine Mayor, APN · NPI 1922240779
Pediatrics physician in Concord, California. Individual provider, active in the CMS NPPES registry since March 25, 2009.
## Identity
- **NPI:** 1922240779 (Entity type: Individual)
- **Enumerated:** March 25, 2009
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** 21798 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2299 BACON ST STE 7, Concord, CA 94520-2046
- **Phone:** (925) 676-6500 · **Fax:** (925) 676-2771
## 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:** City And Couny Of San Francisco (NPI 1164613832, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 27, 2014
---
Source: [NPI Profile](https://npiprofile.com/npi/1922240779) · Data from the CMS NPPES public registry.