Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nicholas Knowlton
Behavior Analyst in Derwood, MD · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942817861
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Registry record
Entity type Individual (Type 1)
Name Nicholas Knowlton
Sex Male
Practice address 7529 Standish Pl Ste 355, Derwood, MD, 20855
Phone (301) 444-5001
Enumeration date Sep 24, 2020
Last updated in NPPES Jan 24, 2026
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 0133004322 (VA) 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 Nicholas Knowlton practice?
The practice location on file with NPPES is in Derwood, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Nicholas Knowlton?
The National Provider Identifier (NPI) for Nicholas Knowlton is 1942817861, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-24.