Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jefferson D Parker, PH.D.

Psychologist in Jackson, MS · enumerated 2006.

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

National Provider Identifier

1164446969

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Registry record

Entity type Individual (Type 1)

Name Dr. Jefferson D Parker

Credential PH.D.

Sex Male

Practice address 2500 North State Street, Jackson, MS, 39216

Phone (601) 984-5815

Fax (601) 984-5842

Enumeration date Jul 26, 2006

Last updated in NPPES Oct 12, 2016

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 33 527 (MS) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
05582264	Medicaid	MS	-

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 Jefferson Parker practice?

The practice location on file with NPPES is in Jackson, MS. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jefferson Parker?

The National Provider Identifier (NPI) for Jefferson Parker is 1164446969, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-12.