Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Harold N. Hollander, D.O.

Plastic Surgery within the Head & Neck (Otolaryngology) Physician in Grand Rapids, MI · enumerated 2006.

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

National Provider Identifier

1699739425

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Registry record

Entity type Individual (Type 1)

Name Dr. Harold N. Hollander

Credential D.O.

Sex Male

Practice address 1179 E Paris Ave Se, Grand Rapids, MI, 49546

Phone (616) 252-5760

Fax (616) 252-5765

Enumeration date Apr 17, 2006

Last updated in NPPES Dec 5, 2017

Taxonomy & licenses

207YX0007X Plastic Surgery within the Head & Neck (Otolaryngology) Physician Allopathic & Osteopathic Physicians · License HH010730 (MI) Primary

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.

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Frequently asked questions

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.

What specialty is Harold Hollander?

Harold Hollander is registered in NPPES with the primary taxonomy of Plastic Surgery within the Head & Neck (Otolaryngology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-05.