Keystone Adult and Adolescent Psychiatry
NPI 1841136090 · Psychiatric/Mental Health Nurse Practitioner · Richmond, TX
Keystone Adult and Adolescent Psychiatry is a Psychiatric/Mental Health Nurse Practitioner organization in Richmond, TX (NPI 1841136090).
Provider details
- NPI number
- 1841136090
- Entity type
- Organization
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Julius Guiang, Psychiatric Nurse Practitioner(808) 728-0624
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2026-04-28
- Last updated
- 2026-04-28
- Certified
- 2026-04-22
Frequently asked questions
- What is Keystone Adult and Adolescent Psychiatry's NPI number?
- Keystone Adult and Adolescent Psychiatry's National Provider Identifier (NPI) is 1841136090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Keystone Adult and Adolescent Psychiatry?
- Keystone Adult and Adolescent Psychiatry is classified in the NPPES registry as Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Keystone Adult and Adolescent Psychiatry located?
- Keystone Adult and Adolescent Psychiatry's practice location on file with NPPES is 24200 Via Mazzini Way Ste 301-526, Richmond, TX 77406-3439.
- What is Keystone Adult and Adolescent Psychiatry's phone number?
- The practice phone number listed in the NPPES registry for Keystone Adult and Adolescent Psychiatry is (281) 949-6453.
- Who is the authorized official for Keystone Adult and Adolescent Psychiatry?
- The authorized official listed on Keystone Adult and Adolescent Psychiatry's NPPES record is Julius Guiang, Psychiatric Nurse Practitioner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Keystone Adult and Adolescent Psychiatry's NPI active?
- Yes — Keystone Adult and Adolescent Psychiatry's NPI (1841136090) is active in the NPPES registry as of the last update on 2026-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.