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Ruben Calvillo, MD

Internal Medicine Physician in Green Valley, AZ · enumerated 2006.

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

National Provider Identifier

1316985435

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Registry record

Entity type Individual (Type 1)
Name Ruben Calvillo
Credential MD
Sex Male
Practice address 1141 S La Canada Dr, Green Valley, AZ, 85614
Phone (520) 694-3030
Fax (520) 694-3055
Enumeration date Jun 2, 2006
Last updated in NPPES Oct 15, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 14238 (AZ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
231564 Medicaid AZ -

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

Where does Ruben Calvillo practice?
The practice location on file with NPPES is in Green Valley, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ruben Calvillo?
The National Provider Identifier (NPI) for Ruben Calvillo is 1316985435, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-15.