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MS. MERCY WENDY MUTHONI PMHNP
NPI 1922693480
Nurse Practitioner - Psychiatric/Mental Health in Laveen, AZ

Active since March 06, 2021
8509 S 41ST DR, LAVEEN, AZ 85339(858) 344-4746(520) 455-3200 Get Directions Write a Review

NPPES record last updated: September 3, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 3, 2025, Jun 6, 2022, Apr 4, 2021 and 1 more (4 updates tracked since 2021).

About Ms. Mercy Wendy Muthoni Pmhnp NPPES

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

MS. MERCY WENDY MUTHONI PMHNP (NPI 1922693480) is an individual psychiatric/mental health provider in Laveen, Arizona, licensed in Arizona (328712) and active in the NPI registry since March 2021.

NPPES Registry Identity

NPI1922693480
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. MERCY WENDY MUTHONICredential: PMHNP
Location Address8509 S 41ST DRLaveen, AZ 85339-7823
Mailing Address8509 S 41st DrLaveen, AZ 85339-7823 · (858) 344-4746 · Fax (520) 455-3200
Phone(858) 344-4746
Fax(520) 455-3200
Sole ProprietorYes
Enumeration DateMarch 6, 2021
Last NPPES UpdateSeptember 3, 20254 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2025
✔ NPI 1922693480 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in AZ · 328712
8509 S 41ST DR, Laveen, AZ 85339
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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOONDALUP PRESTIGE LLC
Community Based Residential Treatment Facility, Mental Illness
8509 S 41ST DR
LAVEEN, AZ 85339
Maricopa County (858) 344-4746

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 Mercy Muthoni's NPI number?

The NPI number for Mercy Muthoni is 1922693480. It was assigned to this individual provider in the NPPES registry on March 6, 2021.

Where is Mercy Muthoni located?

Mercy Muthoni practices at 8509 S 41st Dr, Laveen, AZ 85339. The listed phone number is (858) 344-4746.

What is Mercy Muthoni's specialty?

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

When was this NPI record last updated?

The NPPES record for Mercy Muthoni was last updated on September 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.