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Michael J. Smullen, MD

Dermatology Physician in Green Bay, WI · enumerated 2014 · authorized official Michael Smullen, Solo Practitioner.

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

National Provider Identifier

1194148379

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Registry record

Entity type Organization (Type 2)
Legal business name Michael J. Smullen, MD
Practice address 1239 W Mason St, Green Bay, WI, 54303
Phone (920) 499-0696
Fax (920) 499-0697
Enumeration date Jan 24, 2014
Last updated in NPPES Jan 24, 2014

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Michael Smullen
Title Solo Practitioner
Phone (920) 499-0696

Other identifiers

Identifier Type State Issuer
30979400 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

What type of organization is Michael J. Smullen, MD?
Michael J. Smullen, MD is registered in NPPES as a Dermatology Physician (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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-24.