Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Abby Stewart
Behavior Technician in Anaheim, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598341463
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Registry record
Entity type Individual (Type 1)
Name Abby Stewart
Sex Female
Practice address 100 S Anaheim Blvd Ste 340, Anaheim, CA, 92805
Phone (888) 428-3223
Fax (323) 866-1881
Enumeration date Mar 22, 2021
Last updated in NPPES Mar 22, 2021
Taxonomy & licenses
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
Is NPI 1598341463 active?
Yes, as of the latest NPPES snapshot, NPI 1598341463 is active (record last updated 2021-03-22).
How do I verify Abby Stewart's NPI record?
Cross-check NPI 1598341463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Sheryll Ellorenco Behavior Analyst · Anaheim, CA NPI 1700919362 Crystal Nicholson-Brain Behavior Analyst · Anaheim, CA NPI 1831506617 Deisy Pulido Behavior Analyst · Anaheim, CA NPI 1083142848 Jessica Gomez Gudino Behavior Analyst · Anaheim, CA NPI 1225530231 Ngoc-Lan Le Behavior Analyst · Anaheim, CA NPI 1619464278 Jessica Ellena Behavior Analyst · Anaheim, CA NPI 1972069227 Maria Reyes Behavior Analyst · Anaheim, CA NPI 1851859920 Michelle Hernandez Behavior Technician · Anaheim, CA NPI 1235788399
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-22.