Keystone Adult and Adolescent Psychiatry PLLC

Primary specialty

Mental Health Clinic/Center (Including Community Mental Health Center)Taxonomy code 261QM0801X

Legal business name

KEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC

Practice address

24200 Via Mazzini Way Ste 301-526
Richmond, TX 77406-3439

Phone

(281) 949-6453

NPI assigned

Apr 28, 2026

Last updated

Jul 29, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Julius Guiang, PMHNP-BCNPI 1477444032

Title

Psychiatric Nurse Practitioner

Phone

(281) 949-6453

Specialties & licenses 1

Addresses

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Julius Guiang, PMHNP-BC

  • Psychiatric/Mental Health Nurse Practitioner
  • Richmond, TX
  • NPI 1477444032
  NPD Authorized official

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

{
    "created_epoch": "1777334400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1785283200000",
    "number": "1841136090",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24200 VIA MAZZINI WAY STE 301-526",
            "city": "RICHMOND",
            "state": "TX",
            "postal_code": "774063439",
            "telephone_number": "281-949-6453"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24200 VIA MAZZINI WAY STE 301-526",
            "city": "RICHMOND",
            "state": "TX",
            "postal_code": "774063439",
            "telephone_number": "281-949-6453"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "KEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-04-28",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A",
        "authorized_official_last_name": "GUIANG",
        "authorized_official_first_name": "JULIUS",
        "authorized_official_title_or_position": "PSYCHIATRIC NURSE PRACTITIONER",
        "authorized_official_telephone_number": "281-949-6453",
        "authorized_official_credential": "PMHNP-BC"
    },
    "taxonomies": [
        {
            "code": "261QM0801X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Mental Health (Including Community Mental Health Center)",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marissa Kepple, MA, LPA
• Hatti Raye Kerby, PTA
• Nirmala Kethineni, M.D.
• Key Care Services LLC
• Keys to Prosper LLC
• Moinuddin Khaja
• Sidra Khalid, O.D
• Carmichael Khan
• Faisal M Khan, DDS
• Fiza Ali Khan, DO

• Mental Health Clinic/Center (Including Community Mental Health Center) in Richmond, TX
• Providers in Richmond, TX by specialty
• Mental Health Clinic/Center (Including Community Mental Health Center) in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.