Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Krystle Nicole Grgich, M.A., BCBA
Behavior Analyst in Irvine, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811429814
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Registry record
Entity type Individual (Type 1)
Name Mrs. Krystle Nicole Grgich
Credential M.A., BCBA
Sex Female
Practice address 3652 Michelson Dr, Irvine, CA, 92612
Phone (949) 474-1493
Enumeration date Mar 29, 2017
Last updated in NPPES Mar 11, 2022
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-17-25092 (CA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Krystle Grgich's NPI record?
Cross-check NPI 1811429814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1811429814 active?
Yes, as of the latest NPPES snapshot, NPI 1811429814 is active (record last updated 2022-03-11).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-11.