Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David J Ferguson, MD

General Practice Physician in De Pere, WI · enumerated 2006.

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

National Provider Identifier

1104874122

Verified

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Registry record

Entity type Individual (Type 1)

Name David J Ferguson

Credential MD

Sex Male

Practice address 435 N Broadway Ste B, De Pere, WI, 54115

Phone (855) 545-6794

Fax (262) 928-4699

Enumeration date May 4, 2006

Last updated in NPPES Oct 13, 2020

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 35342 (WI) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 35342-20 (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 specialty is David Ferguson?

David Ferguson is registered in NPPES with the primary taxonomy of General Practice 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 2020-10-13.