# KEYSTONE ADULT AND ADOLESCENT PSYCHIATRY PLLC

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- **Entity:** Organization
- **Status:** Active
- **Organization subpart:** No

## Provider details

- **NPI number:** 1841136090
- **Authorized official:** JULIUS GUIANG PMHNP-BC (PSYCHIATRIC NURSE PRACTITIONER)
- **Authorized official phone:** (281) 949-6453

## Contact information

- **Practice address:** 24200 VIA MAZZINI WAY STE 301-526, RICHMOND, TX 77406-3439
- **Practice address phone:** (281) 949-6453
- **Mailing address:** 24200 VIA MAZZINI WAY STE 301-526, RICHMOND, TX 77406-3439
- **Mailing address phone:** (281) 949-6453

## Taxonomy

| Code | Description | License number | State | Primary |
| --- | --- | --- | --- | --- |
| 261QM0801X | Mental Health Clinic/Center (Including Community Mental Health Center) | — | NULL | Yes |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner | — | — | Yes |

## Other

- **Enumeration date:** 04/28/2026
- **Last updated:** 07/29/2026