NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Alan Peter Tenthoff, M.S, LMHCS

Professional Counselor in Wilmington, NC · enumerated 2007.

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

National Provider Identifier

1588713903

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Registry record

Entity type Individual (Type 1)
Name Mr. Alan Peter Tenthoff
Credential M.S, LMHCS
Sex Male
Practice address Wilmington, NC, 28405
Enumeration date Jan 9, 2007
Last updated in NPPES Jul 20, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 37RT00289200 (NJ) Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License S8202 (NC) Primary

Other identifiers

Identifier Type State Issuer
76-0728318 Other - FEDERAL TAX ID
6104676 Medicaid NC -

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

Where does Alan Tenthoff practice?
The practice location on file with NPPES is in Wilmington, NC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alan Tenthoff?
The National Provider Identifier (NPI) for Alan Tenthoff is 1588713903, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-20.