Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Ada L Castle, RN, CNS

Adult Psychiatric/Mental Health Clinical Nurse Specialist in Greensburg, PA · enumerated 2006.

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

National Provider Identifier

1346261856

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Registry record

Entity type Individual (Type 1)

Name Mrs. Ada L Castle

Credential RN, CNS

Sex Female

Practice address 1117 Woodward Dr Ste 4, Greensburg, PA, 15601

Phone (724) 834-0432

Fax (888) 972-1731

Enumeration date Jul 21, 2006

Last updated in NPPES Nov 30, 2018

Taxonomy & licenses

364SP0809X Adult Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License RN258689L (PA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

How do I verify Ada Castle's NPI record?

Cross-check NPI 1346261856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346261856 active?

Yes, as of the latest NPPES snapshot, NPI 1346261856 is active (record last updated 2018-11-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-30.