Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Harriet J. Mall, PH.D.

Q: What is the NPI number for Harriet Mall?

The National Provider Identifier (NPI) for Harriet Mall is 1558441840, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Psychologist in Farmington Hills, MI · enumerated 2006.

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

National Provider Identifier

1558441840

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Registry record

Entity type Individual (Type 1)

Name Dr. Harriet J. Mall

Credential PH.D.

Sex Female

Practice address 30445 Northwestern Hwy, Suite #240, Farmington Hills, MI, 48334

Phone (248) 538-5045

Fax (248) 538-1801

Enumeration date Oct 17, 2006

Last updated in NPPES Apr 28, 2021

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 6401005154 (MI) Secondary

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 6301008104 (MI) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 6301008104 (MI) Secondary

103TA0700X Adult Development & Aging Psychologist Behavioral Health & Social Service Providers · License 6301008104 (MI) Secondary

103TF0000X Family Psychologist Behavioral Health & Social Service Providers · License 6301008104 (MI) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301008104 (MI) 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
11643507	Other	MI	CAQH

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 Harriet Mall?

The National Provider Identifier (NPI) for Harriet Mall is 1558441840, a Type 1 (individual) record in the CMS NPPES registry.

Where does Harriet Mall practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-28.