Individual provider

Lilian Okereke

Psychiatric/Mental Health Nurse Practitioner Registered Nurse Medicare enrolled

Lilian Okereke is a Psychiatric/Mental Health Nurse Practitioner in Gardena, CA, registered under NPI 1902169196. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1225 W 190TH ST STE 280, Gardena, CA 90248. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1225 W 190TH ST STE 280, Gardena, CA 90248 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
95025134 CA Psychiatric/Mental Health Nurse…
10045031 OR Psychiatric/Mental Health Nurse… primary
788779 CA Registered Nurse

Licences are recorded in 2 states: CA, OR. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
0042672479

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
California I20230816001833 Practitioner - Nurse Practitioner
Oregon I20260212003518 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 2 separate enrolment records across 2 states (CA, OR). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 2 states

This provider holds licences in 2 states: California and Oregon. The practice address on file is in Gardena, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

CA California practice address
Licence
95025134
Specialty
Psychiatric/Mental Health Nurse…
Verify with the CA board →
OR Oregon
Licence
10045031
Specialty
Psychiatric/Mental Health Nurse…
Verify with the OR board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Psychiatric/Mental Health covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Psychiatric/Mental Health

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363LP0808X Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health 95025134 CA
363LP0808X Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health 10045031 OR primary
163W00000X Registered Nurse 788779 CA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1902169196 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateJun 21, 2012
Last updatedJan 19, 2026
StatusActive
Sole proprietorNo
GenderFemale
Practice address 1225 W 190TH ST STE 280
Gardena, CA 90248
(877) 515-8113
Fax (877) 538-2102
Mailing address 427 C ST 212
San Diego, CA 92101
This record was updated on Jan 19, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1902169196 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 9 0 2 1 6 9 1 9
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 9 0 2 2 6 9 1 9

Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1902169196?
NPI 1902169196 is the National Provider Identifier assigned to Lilian Okereke in Gardena, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Psychiatric/Mental Health cover?
Definition to come...
How do I contact Lilian Okereke?
The phone number on file with NPPES is (877) 515-8113, last updated Jan 19, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Lilian Okereke accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1902169196 a valid number?
Yes. 1902169196 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.