Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William E. Cornatzer, Jr., M.D., P.C.

Dermatology Physician in Bismarck, ND · enumerated 2009 · authorized official Dona Cornatzer, Office Manager.

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

National Provider Identifier

1386970671

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Registry record

Entity type Organization (Type 2)

Legal business name William E. Cornatzer, Jr., M.D., P.C.

Practice address 225 N 7th St # 2, United Bank Bldg, Bismarck, ND, 58501

Phone (701) 224-1273

Fax (701) 323-2929

Enumeration date Oct 22, 2009

Last updated in NPPES Dec 18, 2009

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 5189 (ND) Primary

Authorized official

Name Dona Cornatzer

Title Office Manager

Phone (701) 224-1273

Other identifiers

Identifier	Type	State	Issuer
15003	Medicaid	ND	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-12-18. Verify at npiregistry.cms.hhs.gov.

Where is William E. Cornatzer, Jr., M.D., P.C. located?

The practice location on file with NPPES is in Bismarck, ND.

Providers at this address

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William Cornatzer Dermatology Physician · Bismarck, ND NPI 1952360711

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-18.