DR. RITA OZIOMA ONWENNA DNP, RN, NP
NPI 1003463100
Nurse Practitioner - Psychiatric/Mental Health in Montebello, CA

Q: What is Rita Onwenna's NPI number?

The NPI number for Rita Onwenna is 1003463100. It was assigned to this individual provider in the NPPES registry on August 22, 2019. The provider is also known as Dr. Rita Ozioma Onwenna-Aninyei; Osaji.

Q: What is Rita Onwenna's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Rita Onwenna was last updated on April 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since August 22, 2019PECOS Enrolled

123 S. MONTEBELLO BLVD, MONTEBELLO, CA 90640(323) 314-2869(323) 887-3126 Get Directions Write a Review

NPPES record last updated: April 12, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 12, 2024, Aug 22, 2019 (2 updates tracked since 2019).

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About Dr. Rita Ozioma Onwenna Dnp, Rn, Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RITA OZIOMA ONWENNA DNP, RN, NP (NPI 1003463100) is an individual psychiatric/mental health provider in Montebello, California, licensed in California (17442) and active in the NPI registry since August 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003463100

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameDR. RITA OZIOMA ONWENNACredential: DNP, RN, NP

Location Address123 S. MONTEBELLO BLVDMontebello, CA 90640-4729

Mailing Address123 S. Montebello BlvdMontebello, CA 90640-4729 · (323) 314-2869 · Fax (323) 887-3126

Phone(323) 314-2869

Fax(323) 887-3126

Sole ProprietorYes

Enumeration DateAugust 22, 2019

Last NPPES UpdateApril 12, 20242 updates tracked since enumeration

NPPES CertifiedApril 12, 2024

✔ NPI 1003463100 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in CA · 17442

Also ListedRegistered NurseTaxonomy 163W00000X · License 555445 (CA)

Also ListedNurse PractitionerTaxonomy 363L00000X · License 17442 (CA)

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 17442 (CA)

123 S. MONTEBELLO BLVD, Montebello, CA 90640

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Other Names 1

Other Name (5)Dr. Rita Ozioma Onwenna-aninyei; Osaji

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Rita Ozioma Onwenna Dnp, Rn, Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Rita Onwenna reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ehab Yacoub MD Inc.

15 mi

Child & Adolescent Psychiatry

1225 W 190TH ST STE 280
Gardena, CA 90248

Reassigned Medicare billing, California enrollment
375 clinicians in this Medicare group

NPI 1417373713 (310) 515-8113

Grow Healthcare Group PC

313 mi

Mental Health

99 S ALMADEN BLVD STE 600
San Jose, CA 95113

Reassigned Medicare billing, California enrollment
3,139 clinicians in this Medicare group

NPI 1154994846 (408) 402-4385

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 90640 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Rita Onwenna's NPI number?

The NPI number for Rita Onwenna is 1003463100. It was assigned to this individual provider in the NPPES registry on August 22, 2019. The provider is also known as Dr. Rita Ozioma Onwenna-Aninyei; Osaji.

Where is Rita Onwenna located?

Rita Onwenna practices at 123 S. Montebello Blvd, Montebello, CA 90640. The listed phone number is (323) 314-2869.

What is Rita Onwenna's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Rita Onwenna enrolled in Medicare?

Yes. Rita Onwenna is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Rita Onwenna's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rita Onwenna reassigns Medicare benefits to 2 organizations: Ehab Yacoub MD Inc. (Gardena, CA) and Grow Healthcare Group PC (San Jose, 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 Rita Onwenna'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 Rita Onwenna was last updated on April 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.