Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nathaniel Milliken
Social Worker in Lakewood, CO · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144194366
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Registry record
Entity type Individual (Type 1)
Name Nathaniel Milliken
Sex Male
Practice address 1597 Cole Blvd Ste 300, Lakewood, CO, 80401
Phone (303) 424-6078
Enumeration date Oct 1, 2025
Last updated in NPPES Oct 1, 2025
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
What is the NPI number for Nathaniel Milliken?
The National Provider Identifier (NPI) for Nathaniel Milliken is 1144194366, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nathaniel Milliken practice?
The practice location on file with NPPES is in Lakewood, CO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Alexandra Moran Mental Health Counselor · Lakewood, CO NPI 1982578217 Jeanna Zrelak Social Worker · Lakewood, CO NPI 1588538854 Marie Williams Counselor · Lakewood, CO NPI 1871468496 Nicole Baumgartner Clinical Social Worker · Lakewood, CO NPI 1770458358 Alexis Banbury Mental Health Counselor · Lakewood, CO NPI 1447176110
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-01.