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

Dr. Alan Haynes Johnson, PH.D.

Counseling Psychologist in Mt Pleasant, SC · enumerated 2008.

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

National Provider Identifier

1093979957

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Registry record

Entity type Individual (Type 1)
Name Dr. Alan Haynes Johnson
Credential PH.D.
Sex Male
Practice address Mt Pleasant, SC, 29464
Phone (843) 884-3428
Enumeration date Jul 10, 2008
Last updated in NPPES Jul 10, 2008

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

Taxonomy & licenses

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 129 (SC) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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.

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Frequently asked questions

Where does Alan Johnson practice?
The practice location on file with NPPES is in Mt Pleasant, SC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alan Johnson?
The National Provider Identifier (NPI) for Alan Johnson is 1093979957, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-10.