NPPES file of Aug 9, 2026

John Iwuanyanwu

Psychiatric/Mental Health Nurse Practitioner · Norwalk, CA

John Iwuanyanwu is a psychiatric/mental health nurse practitioner with a practice address in Norwalk, California, and NPI 1689364911, issued on May 10, 2023. Check the license (California 95025108, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689364911
Name
John Iwuanyanwu
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
95025108 CA
Self-reported in NPPES; status is on the state search
Practice location
11401 Bloomfield Ave, Norwalk, CA 90650
Phone
(562) 688-0550
Enumerated
May 10, 2023
Record last updated
May 10, 2023
Medicare enrollment
Enrolled (PECOS I20240202001483); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 11401 Bloomfield Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bruce Abrams, MDPsychiatry Physician1972602753
  2. Camille Ace, PSY.D.Psychologist1740317650
  3. Arshad Ali, M.D.Psychiatry Physician1982834883
  4. Amaogechukwu Alugbue, NPFamily Nurse Practitioner1356123160
  5. Jaydina Amaker, PSY.D.Psychologist1952967341
  6. Ranjan Amin, M.D.Psychiatry Physician1659301489

Verify John Iwuanyanwu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95025108
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

98% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

15 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Iwuanyanwu15
  2. Specialty average906

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Ehab Yacoub MD IncGardena, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John Iwuanyanwu among 4,226 psychiatric/mental health nurse practitioner records in California

John Iwuanyanwu is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 62% of them.

  • NPI issued2023 · 62% of these records are older, 28% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2023 · median 2021 among the 1,965 with a school on file
  • Record last updated2023 · 16% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 psychiatric/mental health nurse practitioner records list a practice address in Norwalk

They are 24 of the 1,600 NPPES records with a practice address in Norwalk, and 4,226 psychiatric/mental health nurse practitioner records in California.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Lindsay Barrientos, PMHNPNorwalk, CA 906501255014114
  2. Julie Duane, NPNorwalk, CA 906501952734071
  3. Cecilia GonzalezNorwalk, CA 906501801367081
  4. Brandon GrantNorwalk, CA 906501417509878
  5. Mi Han, FNP. PMHNPNorwalk, CA 906501174384606
  6. Dorothy MereginiNorwalk, CA 906501831928332
  7. Joan NjokuNorwalk, CA 906501265140222
  8. Catina PiquionNorwalk, CA 906501720365927

Common questions

What is John Iwuanyanwu's NPI number?

John Iwuanyanwu's National Provider Identifier (NPI) is 1689364911, issued on May 10, 2023. An NPI identifies a provider in billing; it is not a license.

Where is John Iwuanyanwu located?

The NPPES record lists a practice address at 11401 Bloomfield Ave, Norwalk, CA, 90650. Phone: (562) 688-0550. Providers update this record themselves, so call before visiting.

How can I verify John Iwuanyanwu's license?

NPPES lists California license number 95025108, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Iwuanyanwu prescribe under Medicare Part D?

In 2024, John Iwuanyanwu had 15 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.