NPI Portal NPI Lookup & Verification

Amanda Chastain

Amanda Chastain is a Behavior Analyst provider (Behavior Analyst) practicing in Chicago, IL, registered in the NPPES registry with NPI 1003383845 since 2018.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1003383845
Entity type Individual (Type 1)
Name Amanda Chastain
Sex Female
Practice address Chicago, IL, 60608
Phone 1241318713
Enumeration date 2018-10-30
Last updated in NPPES 2021-08-25

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
103K00000X Behavior Analyst Primary
Copy-ready billing details
Provider: Amanda Chastain
NPI: 1003383845
Taxonomy: 103K00000X (Behavior Analyst)
Address: Chicago, IL, 60608

Other providers at this practice address

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1174554331 University of Illinois - Chicago Organization Early Intervention Provider Agency Chicago, IL
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1013002914 Michel Helmke Individual Speech-Language Pathologist Chicago, IL
1922193820 Christina Copeland Individual Developmental Therapist Chicago, IL
1548355449 Marjorie Wilkey Individual Speech-Language Pathologist Chicago, IL
1366537110 Michelle Bulanda Individual Physical Therapist Chicago, IL
1629166806 Ann Cutler Individual Pediatrics Physician Chicago, IL
1154410603 Penelope Bernstein Individual Other Specialist/Technologist Chicago, IL

Verify this record

Cross-check NPI 1003383845 against the authoritative CMS record: view Amanda Chastain on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Amanda Chastain?
Amanda Chastain is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-08-25.