Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William D Kassens, Jr MD PA

Q: What type of organization is William D Kassens, Jr MD PA?

William D Kassens, Jr MD PA is registered in NPPES as a Specialist (its primary provider taxonomy).

Specialist in Wilmington, NC · enumerated 2007 · authorized official William Kassens, President.

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

National Provider Identifier

1568651115

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Registry record

Entity type Organization (Type 2)

Legal business name William D Kassens, Jr MD PA

Practice address 1984 S 16th St, Suite 2, Wilmington, NC, 28401

Phone (910) 343-0493

Enumeration date Oct 19, 2007

Last updated in NPPES Oct 19, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License 17375 (NC) Primary

Authorized official

Name William Kassens

Title President

Phone (910) 343-0493

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 type of organization is William D Kassens, Jr MD PA?

William D Kassens, Jr MD PA is registered in NPPES as a Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Catherine Kassens Dermatology Physician · Wilmington, NC NPI 1467494955 Catherine H Kassens, MD PA Specialist · Wilmington, NC NPI 1942499751

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-19.