Happiness Onwuadiamu, NP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

1041156 Issued in TX

Practice address

7616 Branford PL Ste 220
Sugar Land, TX 77479-3794

Phone

(346) 690-8107

NPI assigned

May 2, 2026

Sex

Female

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Psychiatry of Texas PLLCGroup PAC ID 0345573598, 418 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Psychiatry of Texas PLLC

  • Psychiatry Physician
  • Houston, TX
  • NPI 1013476027
  Medicare reassignment Care Compare group
• Psychplus Medical Associates, PLLC

  • Family Medicine Physician
  • Houston, TX
  • NPI 1558118026
  Medicare reassignment

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1777680000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777680000000",
    "number": "1679410039",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7616 BRANFORD PL STE 220",
            "city": "SUGAR LAND",
            "state": "TX",
            "postal_code": "774793794",
            "telephone_number": "346-690-8107"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7616 BRANFORD PL STE 220",
            "city": "SUGAR LAND",
            "state": "TX",
            "postal_code": "774793794",
            "telephone_number": "346-690-8107"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ONWUADIAMU",
        "first_name": "HAPPINESS",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-05-02",
        "last_updated": "2026-05-02",
        "certification_date": "2026-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "TX",
            "license": "1041156",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Onsite Outpatient Therapy Services PLLC
• Nikki Negeen Onstead
• Chikodili Onu, NP-C
• Bernadette Ukachi Onuoha, MD
• Onward Medical Supplies
• A Onwuka
• Vivien Onyekwere, MSN,RN,NP-C
• Erinma Onyeri, CNIM
• Helen O Onyewuenyi
• Lilian Fei Ooi, PHARMD

• Psychiatric/Mental Health Nurse Practitioner in Sugar Land, TX
• Providers in Sugar Land, TX by specialty
• Psychiatric/Mental Health Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.