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Michael J. Willenborg, M.D. PA

Orthopaedic Surgery Physician in North Lake, TX · enumerated 2011 · authorized official Michael Willenborg, President.

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

National Provider Identifier

1245517457

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Registry record

Entity type Organization (Type 2)
Legal business name Michael J. Willenborg, M.D. PA
Practice address 1234 Fm 407, Ste 100, North Lake, TX, 76226
Phone (972) 420-1776
Fax (972) 221-8685
Enumeration date Nov 16, 2011
Last updated in NPPES Sep 3, 2021

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License L3525 (TX) Primary

Authorized official

Name Michael Willenborg
Title President
Phone (972) 420-1776

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. Willenborg, M.D. PA?
Michael J. Willenborg, M.D. PA is registered in NPPES as a Orthopaedic Surgery 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 2021-09-03.