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Guillermo Miguel Valenzuela Cortez, MD

Internal Medicine Physician in Johnson Creek, WI · enumerated 2020.

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

National Provider Identifier

1710597174

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Registry record

Entity type Individual (Type 1)
Name Guillermo Miguel Valenzuela Cortez
Credential MD
Sex Male
Practice address 400 Doctors Ct, Johnson Creek, WI, 53038
Phone (920) 699-4245
Fax (920) 699-4748
Enumeration date Jul 31, 2020
Last updated in NPPES Sep 23, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MT222042 (PA) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License MT222042 (PA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 83885-20 (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.

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Frequently asked questions

What is the NPI number for Guillermo Valenzuela Cortez?
The National Provider Identifier (NPI) for Guillermo Valenzuela Cortez is 1710597174, a Type 1 (individual) record in the CMS NPPES registry.
Where does Guillermo Valenzuela Cortez practice?
The practice location on file with NPPES is in Johnson Creek, WI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-23.