NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. George William Appenzeller, MSW

Clinical Social Worker in Columbia, SC · enumerated 2012.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538425426

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. George William Appenzeller
Credential MSW
Sex Male
Practice address 2711 Middleburg Dr, Suite 301, Columbia, SC, 29204
Phone (803) 771-6663
Fax (803) 771-1595
Enumeration date Apr 5, 2012
Last updated in NPPES Apr 5, 2012

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 2199 (SC) Primary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License C006817 (NC) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for George Appenzeller?
The National Provider Identifier (NPI) for George Appenzeller is 1538425426, a Type 1 (individual) record in the CMS NPPES registry.
Where does George Appenzeller practice?
The practice location on file with NPPES is in Columbia, SC. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-05.