Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Arianny Marrero, LMHC, CRC

Mental Health Counselor in Nyack, NY · enumerated 2017.

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

National Provider Identifier

1134638950

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Registry record

Entity type Individual (Type 1)

Name Arianny Marrero

Credential LMHC, CRC

Sex Female

Practice address 292 Piermont Ave Apt 3g, Nyack, NY, 10960

Phone (347) 753-7904

Enumeration date Sep 25, 2017

Last updated in NPPES Dec 12, 2022

Taxonomy & licenses

225C00000X Rehabilitation Counselor Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 010878-01 (NY) 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 specialty is Arianny Marrero?

Arianny Marrero is registered in NPPES with the primary taxonomy of Mental Health Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-12.