What is Ryan Byun's NPI number?

Ryan Byun's National Provider Identifier (NPI) is 1174316277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ryan Byun's specialty?

Ryan Byun is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Ryan Byun located?

Ryan Byun's practice location on file with NPPES is 12459 Lewis St Ste 201, Garden Grove, CA 92840-6606.

What is Ryan Byun's phone number?

The practice phone number listed in the NPPES registry for Ryan Byun is (800) 249-1266.

Is Ryan Byun's NPI active?

Yes — Ryan Byun's NPI (1174316277) is active in the NPPES registry as of the last update on 2026-03-25.

IndividualActive

Ryan Byun

NPI 1174316277 · Behavior Technician · Garden Grove, CA

Ryan Byun is a Behavior Technician provider in Garden Grove, CA (NPI 1174316277).

Provider details

NPI number: 1174316277
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(48/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
1 yr in NPPES registry
Profile completeness38% of score
83% 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

12459 Lewis St Ste 201

Garden Grove, CA 92840-6606

Phone: (800) 249-1266

Street-level locationGet directions

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Mailing address