Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Happiness Onwuadiamu, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1679410039

Happiness Onwuadiamu, NP is a Nurse Practitioner in Sugar Land, Texas. Qualified in 2025, 1 year ago. Practices with Psychiatry of Texas PLLC, a 404-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
1
Licensed in
TX
In the registry since
2026
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

7616 Branford Pl Ste 220
Sugar Land, TX 77479-3794
Phone: (346) 690-8107
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 1041156 (TX)

Record details

NPI number1679410039
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedMay 2, 2026
Last updated in NPPESMay 2, 2026
Certification dateMay 1, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2025 (1 years in practice)
Group practice Psychiatry Of Texas Pllc — 404 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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