Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Margaret Hillebrand, PHD

Clinical Psychologist in Southfield, MI · enumerated 2006.

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

National Provider Identifier

1639288608

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Margaret Hillebrand

Credential PHD

Sex Female

Practice address 27288 Apple Blossom Lane, Southfield, MI, 48034

Phone (248) 355-4834

Fax (248) 945-1002

Enumeration date Aug 30, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301006954 (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
140832	Other	MI	CARE CHOICE
353123	Other	MI	MHN
P1510923	Other	MI	1ST HEALTH
5233178	Other	MI	MAGELLAN
043351	Other	MI	VALUE OPTIONS
680F33178	Other	MI	BLUE CROSS
P1510923	Other	MI	OXFORD HEALTH
112243	Other	MI	UNITED BEHAVIORAL HEALTH
0005233178	Other	MI	AETNA

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

What specialty is Mary Hillebrand?

Mary Hillebrand is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.