Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Holly Erin Lorigan, D.O.

Neurology Physician in Troy, MI · enumerated 2007.

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

National Provider Identifier

1023216488

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Registry record

Entity type Individual (Type 1)

Name Dr. Holly Erin Lorigan

Credential D.O.

Sex Female

Practice address Henry Ford Medical Center Neurology, 2825 Livernois, Troy, MI, 48083

Phone (248) 528-0623

Enumeration date Jul 6, 2007

Last updated in NPPES Apr 25, 2013

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 5101014877 (MI) Primary

2084N0600X Clinical Neurophysiology Physician Allopathic & Osteopathic Physicians · License 5101014877 (MI) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Holly Lorigan?

Holly Lorigan is registered in NPPES with the primary taxonomy of Neurology Physician. 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 2013-04-25.