ROSEMARY ONWUKA
NPI 1154826089
Nurse Practitioner - Family in Los Angeles, CA
About Rosemary Onwuka NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROSEMARY ONWUKA (NPI 1154826089) is an individual family provider in Los Angeles, California, licensed in California (F03180604) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
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 and accepts Medicare assignment
Rosemary Onwuka 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 Reassignment
Medicare enrollment records show Rosemary Onwuka reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90037
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: St. John's Community Health
- 404 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
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 90037 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.
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 Onwuka's NPI number?
The NPI number for Rosemary Onwuka is 1154826089. It was assigned to this individual provider in the NPPES registry on March 23, 2018.
Where is Rosemary Onwuka located?
Rosemary Onwuka practices at 808 W 58th St, Los Angeles, CA 90037. The listed phone number is (323) 541-1411.
What is Rosemary Onwuka's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Rosemary Onwuka enrolled in Medicare?
Yes. Rosemary Onwuka 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 organization bills Medicare for Rosemary Onwuka's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rosemary Onwuka reassigns Medicare benefits to St. Johns Community Health (Los Angeles, 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 Rosemary Onwuka'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 Onwuka was last updated on August 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 Onwuka · NPI 1154826089
Family physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 23, 2018.
## Identity
- **NPI:** 1154826089 (Entity type: Individual)
- **Enumerated:** March 23, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F03180604 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 808 W 58TH ST, Los Angeles, CA 90037-3632
- **Phone:** (323) 541-1411 · **Fax:** (877) 720-7181
## 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:** St. Johns Community Health (NPI 1073363768, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** August 22, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1154826089) · Data from the CMS NPPES public registry.