Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria C. Nieves

Q: What is the NPI number for Maria Nieves?

The National Provider Identifier (NPI) for Maria Nieves is 1043648348, a Type 1 (individual) record in the CMS NPPES registry.

Rehabilitation Practitioner in Rocklin, CA · enumerated 2013 · practices at County of Placer.

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

National Provider Identifier

1043648348

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Registry record

Entity type Individual (Type 1)

Name Maria C. Nieves

Sex Female

Practice address 1000 Sunset Blvd Ste 140, Rocklin, CA, 95765

Phone (530) 308-3862

Enumeration date Oct 23, 2013

Last updated in NPPES Apr 23, 2025

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

225400000X Rehabilitation Practitioner Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

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

What is the NPI number for Maria Nieves?

The National Provider Identifier (NPI) for Maria Nieves is 1043648348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maria Nieves practice?

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

Other providers at this practice address

Browse all →

Kristin Siles Clinical Social Worker · Rocklin, CA NPI 1952433799 Gina Martinez Diaz Marriage & Family Therapist · Rocklin, CA NPI 1164555330 Julie Hildinger Marriage & Family Therapist · Rocklin, CA NPI 1750661732 County of Placer Community/Behavioral Health Agency · Rocklin, CA NPI 1730517202 Bianca Yarmolyuk Marriage & Family Therapist · Rocklin, CA NPI 1760830657 Athena Zografos Marriage & Family Therapist · Rocklin, CA NPI 1609326057 Lisa Garcia Clinical Social Worker · Rocklin, CA NPI 1609434224 Stephanie Frazier Mental Health Counselor · Rocklin, CA NPI 1306478789

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-23.