MRS. CHRISTINE ANNE GERONIMO NP-C
NPI 1639614100
Nurse Practitioner in Sylmar, CA
About Mrs. Christine Anne Geronimo Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. CHRISTINE ANNE GERONIMO NP-C (NPI 1639614100) is an individual nurse practitioner in Sylmar, California, licensed in California (95004998) and active in the NPI registry since December 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Christine Anne Geronimo Np-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Christine Anne Geronimo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sylmar, CA 91342
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of Los Angeles
- 1,939 clinicians in this Medicare group
Santa Clarita, CA 91387
- Reassigned Medicare billing, California enrollment
- 13,921 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 91342 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.
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
SYLMAR, CA 91342
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 Anne Geronimo's NPI number?
The NPI number for Christine Anne Geronimo is 1639614100. It was assigned to this individual provider in the NPPES registry on December 20, 2016.
Where is Christine Anne Geronimo located?
Christine Anne Geronimo practices at 14445 Olive View Dr, Sylmar, CA 91342. The listed phone number is (818) 224-8576.
What is Christine Anne Geronimo's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Christine Anne Geronimo enrolled in Medicare?
Yes. Christine Anne Geronimo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Christine Anne Geronimo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Anne Geronimo reassigns Medicare benefits to 2 organizations: County Of Los Angeles Auditor Controller (Sylmar, CA) and Southern California Permanente Medical Group (Santa Clarita, CA). 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 Christine Anne Geronimo'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 Anne Geronimo was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Mrs. Christine Anne Geronimo, NP-C · NPI 1639614100
Nurse Practitioner physician in Sylmar, California. Individual provider, active in the CMS NPPES registry since December 20, 2016.
## Identity
- **NPI:** 1639614100 (Entity type: Individual)
- **Enumerated:** December 20, 2016
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 95004998 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 14445 OLIVE VIEW DR, Sylmar, CA 91342-1437
- **Phone:** (818) 224-8576
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): County Of Los Angeles Auditor Controller (NPI 1134159320, Sylmar, CA); Southern California Permanente Medical Group (NPI 1316409410, Santa Clarita, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** May 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639614100) · Data from the CMS NPPES public registry.