Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ada Rivera-Castillo

Professional Counselor in Harrisburg, PA · enumerated 2010.

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

National Provider Identifier

1841514536

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ada Rivera-Castillo

Sex Female

Practice address 307 S Front St, Harrisburg, PA, 17104

Phone (717) 221-6200

Enumeration date Mar 24, 2010

Last updated in NPPES Mar 24, 2010

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social 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 specialty is Ada Rivera-Castillo?

Ada Rivera-Castillo is registered in NPPES with the primary taxonomy of Professional 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-24.