Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Maci Elizabeth Duncan, B.S.
Social Worker in Cookeville, TN · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235580341
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Registry record
Entity type Individual (Type 1)
Name Maci Elizabeth Duncan
Credential B.S.
Sex Female
Practice address 13 S Jefferson Ave, Cookeville, TN, 38501
Phone (931) 528-5561
Enumeration date Jun 29, 2016
Last updated in NPPES Jun 29, 2016
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 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 Maci Duncan?
Maci Duncan is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Jessica Branch Mental Health Counselor · Cookeville, TN NPI 1548682404 Jennifer Stephenson Mental Health Counselor · Cookeville, TN NPI 1265841787 Amber Lisic Counselor · Cookeville, TN NPI 1164821351 Anne Loubier Mental Health Counselor · Cookeville, TN NPI 1003210139 Maura Wood Social Worker · Cookeville, TN NPI 1275908493 Amy Copley Mental Health Counselor · Cookeville, TN NPI 1134672710 Amy Rich Mental Health Counselor · Cookeville, TN NPI 1568990265 Renate Roop School Counselor · Cookeville, TN NPI 1487176277
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-29.