Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Catherine Hollahan, ACNP
Nurse Practitioner in Lakeland, TN · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700910296
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Registry record
Entity type Individual (Type 1)
Name Catherine Hollahan
Credential ACNP
Sex Female
Practice address 8950 Us Highway 64, Suite 109, Lakeland, TN, 38002
Phone (901) 213-0100
Fax (901) 213-0101
Enumeration date Mar 15, 2007
Last updated in NPPES Nov 5, 2013
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN12232 (TN) 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
What specialty is Catherine Hollahan?
Catherine Hollahan is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-05.