Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Flora Holderbaum, AUD, CCC-A

Audiologist in Bronx, NY · enumerated 2007.

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

National Provider Identifier

1659406908

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Registry record

Entity type Individual (Type 1)

Name Dr. Flora Holderbaum

Credential AUD, CCC-A

Sex Female

Practice address Bronx, NY, 10463

Phone (212) 305-8555

Fax (646) 317-5201

Enumeration date Feb 23, 2007

Last updated in NPPES Mar 16, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 000732-1 (NY) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

Other identifiers

Identifier	Type	State	Issuer
02474537	Medicaid	NY	-

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 Flora Holderbaum?

Flora Holderbaum is registered in NPPES with the primary taxonomy of Audiologist. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-16.