MAUREEN NNENNA OKEREKE
NPI 1205393998
Nurse Practitioner - Psychiatric/Mental Health in Los Angeles, CA

Active since February 28, 2019PECOS Enrolled
4211 AVALON BLVD, LOS ANGELES, CA 90011(323) 233-0425 Get Directions Write a Review

NPPES record last updated: March 27, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 27, 2026, Nov 10, 2022, Jan 20, 2022 and 2 more (5 updates tracked since 2019).

About Maureen Nnenna Okereke NPPES

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

MAUREEN NNENNA OKEREKE (NPI 1205393998) is an individual psychiatric/mental health provider in Los Angeles, California, licensed in California (95011011) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Compton.

NPPES Registry Identity

NPI1205393998
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMAUREEN NNENNA OKEREKE
Location Address4211 AVALON BLVDLos Angeles, CA 90011-5622
Mailing Address4211 Avalon BlvdLos Angeles, CA 90011-5622 · (323) 582-2251 · Fax (323) 582-2251
Sole ProprietorNo
Enumeration DateFebruary 28, 2019
Last NPPES UpdateMarch 27, 20265 updates tracked since enumeration
NPPES CertifiedMarch 27, 2026
✔ NPI 1205393998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in CA · 95011011
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 95011011 (CA)
4211 AVALON BLVD, Los Angeles, CA 90011

Secondary Practice Location 1

Location 12115 N Wilmington AveCompton, CA 90222-2030 · Phone (323) 541-1411

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maureen Nnenna Okereke 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 Reassignment

Medicare enrollment records show Maureen Okereke reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinic/Center
515 W 27TH ST
Los Angeles, CA 90007
  • 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90011 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.

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.

Registered Nurse
4211 AVALON BLVD
LOS ANGELES, CA 90011
Occupational Therapist (Mental Health)
4211 AVALON BLVD
LOS ANGELES, CA 90011
Social Worker (Clinical)
4211 AVALON BLVD
LOS ANGELES, CA 90011
Social Worker
4211 AVALON BLVD
LOS ANGELES, CA 90011
Social Worker
4211 AVALON BLVD
LOS ANGELES, CA 90011
Pharmacist (Psychiatric)
4211 AVALON BLVD
LOS ANGELES, CA 90011
Nurse Practitioner (Psychiatric/Mental Health)
4211 AVALON BLVD
LOS ANGELES, CA 90011
Psychiatry & Neurology (Child & Adolescent Psychiatry)
4211 AVALON BLVD
LOS ANGELES, CA 90011

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 Maureen Okereke's NPI number?

The NPI number for Maureen Okereke is 1205393998. It was assigned to this individual provider in the NPPES registry on February 28, 2019.

Where is Maureen Okereke located?

Maureen Okereke practices at 4211 Avalon Blvd, Los Angeles, CA 90011. The listed phone number is (323) 233-0425.

What is Maureen Okereke's specialty?

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

Is Maureen Okereke enrolled in Medicare?

Yes. Maureen Okereke is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maureen Okereke's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maureen Okereke reassigns Medicare benefits to St. Johns Well Child And Family Center (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 Maureen Okereke'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 Maureen Okereke was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.