Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

KEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC
NPI 1841136090
Clinic/Center - Mental Health (Including Community Mental Health Center) in Richmond, TX

Active since April 28, 2026
24200 VIA MAZZINI WAY STE 301-526, RICHMOND, TX 77406(281) 949-6453 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Keystone Adult And Adolescent Psychiatry Pllc NPPES

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

KEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC (NPI 1841136090) is a healthcare organization registered as a mental health (including community mental health center) in Richmond, Texas and active in the NPI registry since April 2026. The organization lists Julius Guiang, Psychiatric Nurse Practitioner, as its authorized official.

NPPES Registry Identity

NPI1841136090
Entity TypeOrganization
Primary Taxonomy261QM0801X
Legal Business NameKEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC
Location Address24200 VIA MAZZINI WAY STE 301-526Richmond, TX 77406-3439
Mailing Address24200 Via Mazzini Way Ste 301-526Richmond, TX 77406-3439 · (281) 949-6453
Organization SubpartNo
Authorized OfficialJulius GuiangPsychiatric Nurse Practitioner · (281) 949-6453
Enumeration DateApril 28, 2026
Last NPPES UpdateJuly 29, 2026
NPPES CertifiedJuly 29, 2026
NPI 1841136090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinic/Center · Mental Health (Including Community Mental Health Center)Ambulatory Health Care Facilities
Taxonomy Code261QM0801X
24200 VIA MAZZINI WAY STE 301-526, Richmond, TX 77406

Other Providers at the Same Location NPPES

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

Nurse Practitioner (Psychiatric/Mental Health)
24200 VIA MAZZINI WAY STE 301-526
RICHMOND, TX 77406

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 Keystone Adult And Adolescent Psychiatry PLLC's NPI number?

The NPI number for Keystone Adult And Adolescent Psychiatry PLLC is 1841136090. It was assigned to this organization in the NPPES registry on April 28, 2026.

Where is Keystone Adult And Adolescent Psychiatry PLLC located?

Keystone Adult And Adolescent Psychiatry PLLC is located at 24200 Via Mazzini Way Ste 301-526, Richmond, TX 77406. The listed phone number is (281) 949-6453.

What is Keystone Adult And Adolescent Psychiatry PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.

When was this NPI record last updated?

The NPPES record for Keystone Adult And Adolescent Psychiatry PLLC was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.