ROSEMARY LOPEZ N.P.
NPI 1578820197
Nurse Practitioner - Acute Care in Valencia, CA
About Rosemary Lopez N.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROSEMARY LOPEZ N.P. (NPI 1578820197) is an individual acute care provider in Valencia, California, licensed in California (20981) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 2
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 and accepts Medicare assignment
Rosemary Lopez N.p. 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 Rosemary Lopez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valencia, CA 91355
- Reassigned Medicare billing, California enrollment
- 684 clinicians in this Medicare group
Manhattan Beach, CA 90266
- Reassigned Medicare billing, California enrollment
- 2 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 91355 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.
VALENCIA, CA 91355
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 Rosemary Lopez's NPI number?
The NPI number for Rosemary Lopez is 1578820197. It was assigned to this individual provider in the NPPES registry on April 20, 2012.
Where is Rosemary Lopez located?
Rosemary Lopez practices at 26357 Mcbean Pkwy, Valencia, CA 91355. The listed phone number is (661) 222-2658.
What is Rosemary Lopez's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Rosemary Lopez enrolled in Medicare?
Yes. Rosemary Lopez 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 Rosemary Lopez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rosemary Lopez reassigns Medicare benefits to 2 organizations: Providence Facey Medical Foundation (Valencia, CA) and Jagdeep Singh Tung MD Inc (Manhattan Beach, 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 Rosemary Lopez'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 Rosemary Lopez was last updated on January 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Rosemary Lopez, N.P. · NPI 1578820197
Acute Care physician in Valencia, California. Individual provider, active in the CMS NPPES registry since April 20, 2012.
## Identity
- **NPI:** 1578820197 (Entity type: Individual)
- **Enumerated:** April 20, 2012
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 20981 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 26357 MCBEAN PKWY, Valencia, CA 91355-4488
- **Phone:** (661) 222-2658
## 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): Providence Facey Medical Foundation (NPI 1710031588, Valencia, CA); Jagdeep Singh Tung MD Inc (NPI 1295986859, Manhattan Beach, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** January 24, 2017
- **Other identifiers:** Medicare PIN CB269056 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1578820197) · Data from the CMS NPPES public registry.