Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mackenzie Sadie King
Behavior Analyst in Concord, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003492117
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Registry record
Entity type Individual (Type 1)
Name Mackenzie Sadie King
Sex Female
Practice address 575 Virginia Rd # 310b, Concord, MA, 01742
Phone (978) 759-7001
Enumeration date Mar 19, 2021
Last updated in NPPES Mar 19, 2021
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License S91289793 (MA) 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
Where does Mackenzie King practice?
The practice location on file with NPPES is in Concord, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mackenzie King?
The National Provider Identifier (NPI) for Mackenzie King is 1003492117, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-19.