MRS. ROSEMARIE SPENCER NNP
NPI 1942424643
Nurse Practitioner - Neonatal in Loma Linda, CA
About Mrs. Rosemarie Spencer Nnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ROSEMARIE SPENCER NNP (NPI 1942424643) is an individual neonatal provider in Loma Linda, California, licensed in California (16868) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mrs. Rosemarie Spencer Nnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Rosemarie Spencer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Loma Linda, CA 92354
- Reassigned Medicare billing, California enrollment
- 2,584 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 92354 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.
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
LOMA LINDA, CA 92354
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 Rosemarie Spencer's NPI number?
The NPI number for Rosemarie Spencer is 1942424643. It was assigned to this individual provider in the NPPES registry on April 12, 2007. The provider is also known as Rosemarie De Los Santos Nnp.
Where is Rosemarie Spencer located?
Rosemarie Spencer practices at 11234 Anderson St, Loma Linda, CA 92354. The listed phone number is (909) 558-4403.
What is Rosemarie Spencer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Rosemarie Spencer enrolled in Medicare?
Yes. Rosemarie Spencer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Rosemarie Spencer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rosemarie Spencer reassigns Medicare benefits to Faculty Physicians And Surgeons Of Llusm (Loma Linda, 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 Rosemarie Spencer'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 Rosemarie Spencer was last updated on May 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mrs. Rosemarie Spencer, NNP · NPI 1942424643
Neonatal physician in Loma Linda, California. Individual provider, active in the CMS NPPES registry since April 12, 2007.
## Identity
- **NPI:** 1942424643 (Entity type: Individual)
- **Enumerated:** April 12, 2007
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 16868 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11234 ANDERSON ST, Loma Linda, CA 92354-2804
- **Phone:** (909) 558-4403
## 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:** Faculty Physicians And Surgeons Of Llusm (NPI 1245605781, Loma Linda, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1942424643) · Data from the CMS NPPES public registry.