NPI Portal NPI Lookup & Verification

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

Dr. Benjamin Robert Siebert, M.D.

Physical Medicine & Rehabilitation Physician in Neenah, WI · enumerated 2009 · practices at The Neuroscience Group of Northeast Wisconsin, Sc.

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

National Provider Identifier

1114154192

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Benjamin Robert Siebert
Credential M.D.
Sex Male
Practice address Neenah, WI, 54956
Enumeration date Jun 16, 2009
Last updated in NPPES Jun 25, 2018

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

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 4301096795 (MI) Secondary
208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 65912-20 (WI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 is the NPI number for Benjamin Siebert?
The National Provider Identifier (NPI) for Benjamin Siebert is 1114154192, a Type 1 (individual) record in the CMS NPPES registry.
Where does Benjamin Siebert practice?
The practice location on file with NPPES is in Neenah, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-25.