NPPES file of Aug 9, 2026

Nnenna Amachi, NP

Nurse Practitioner · Garden Grove, CA

Nnenna Amachi, NP is a nurse practitioner with a practice address in Garden Grove, California, and NPI 1255532149, issued on May 30, 2007. Check the license (California NP9235, 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
1255532149
Name
Nnenna Amachi
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
NP9235 CA
Self-reported in NPPES; status is on the state search
Practice location
12377 Lewis St Ste 105, Garden Grove, CA 92840
Phone
(714) 823-4780
Enumerated
May 30, 2007
Record last updated
Sep 13, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →

Also registered at 12377 Lewis St Ste 105

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

  1. Elvia Diaz, L.C.S.W.Clinical Social Worker1871852913

Verify Nnenna Amachi 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 NP9235    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

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41% fewer Medicare Part D claims than the average nurse practitioner in 2024

649 Medicare Part D claims for 149 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.

  1. Nnenna Amachi649
  2. Specialty average1,109

Most prescribed

  1. Trazodone Hcl82 claims
  2. Quetiapine Fumarate53 claims
  3. Aripiprazole45 claims
  4. Olanzapine41 claims
  5. Bupropion Xl27 claims
  6. Divalproex Sodium27 claims

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.

Nnenna Amachi among 8,223 nurse practitioner records in California

Nnenna Amachi, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 73% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2023 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

All 8,223 in California → Every provider in Garden Grove → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Roxanne Carney, PMHNP-BCGarden Grove, CA 928401417611591
  2. Yuri Kim, FNPGarden Grove, CA 928401942939293
  3. Deanna Koschel, PMHNP-BCGarden Grove, CA 928401770355752
  4. Juliana Labrador, MSN-FNPGarden Grove, CA 928401629759659
  5. Kimoanh NguyenGarden Grove, CA 928401801556188
  6. Jennie Ruiz, NP-BCGarden Grove, CA 928401912444688
  7. John Zaldua, PMHNPGarden Grove, CA 928401306557970
  8. Phuong Nguyen, NPGarden Grove, CA 928411851811301

Common questions

What is Nnenna Amachi, NP's NPI number?

Nnenna Amachi, NP's National Provider Identifier (NPI) is 1255532149, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nnenna Amachi, NP located?

The NPPES record lists a practice address at 12377 Lewis St Ste 105, Garden Grove, CA, 92840. Phone: (714) 823-4780. Providers update this record themselves, so call before visiting.

How can I verify Nnenna Amachi, NP's license?

NPPES lists California license number NP9235, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Nnenna Amachi, NP prescribe under Medicare Part D?

In 2024, Nnenna Amachi, NP had 649 Medicare Part D claims for 149 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.