Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Cindy Arenas Nieves, LMFT

Marriage & Family Therapist in Oro Valley, AZ · enumerated 2018.

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

National Provider Identifier

1659851657

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Registry record

Entity type Individual (Type 1)

Name Dr. Cindy Arenas Nieves

Credential LMFT

Sex Female

Practice address Oro Valley, AZ, 85755

Phone (520) 216-6593

Enumeration date Aug 19, 2018

Last updated in NPPES Sep 16, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License LMFT-15822 (AZ) Primary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MT3017 (FL) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 001250 (NY) Secondary

LMFT · Licensed Marriage and Family Therapist: A licensed therapist specializing in relational and family psychotherapy. About the LMFT 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Cindy Arenas Nieves practice?

The practice location on file with NPPES is in Oro Valley, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Cindy Arenas Nieves?

The National Provider Identifier (NPI) for Cindy Arenas Nieves is 1659851657, 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 2025-09-16.