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Dr. Robert B. Prehn, M.D.

Otolaryngology Physician in Neenah, WI · enumerated 2005.

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

National Provider Identifier

1407859523

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert B. Prehn
Credential M.D.
Sex Male
Practice address 119 E Bell St, Neenah, WI, 54956
Phone (920) 969-1768
Fax (920) 969-1788
Enumeration date May 23, 2005
Last updated in NPPES Mar 10, 2017

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 33668 (WI) Secondary
207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 33668-20 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
32243800 Medicaid WI -

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 NPI 1407859523 active?
Yes, as of the latest NPPES snapshot, NPI 1407859523 is active (record last updated 2017-03-10).
How do I verify Robert Prehn's NPI record?
Cross-check NPI 1407859523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-10.