Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Liana R Tierney, DNP, RN, CPNP-PC

Pediatric Nurse Practitioner in Buffalo, NY · enumerated 2016 · practices at Delaware Pediatric Associates.

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

National Provider Identifier

1700249877

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Registry record

Entity type Individual (Type 1)

Name Liana R Tierney

Credential DNP, RN, CPNP-PC

Sex Female

Practice address 2550 Delaware Ave, Buffalo, NY, 14216

Phone (716) 884-0230

Enumeration date Apr 5, 2016

Last updated in NPPES Sep 30, 2022

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6517 (CT) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F383429 (NY) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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

Is NPI 1700249877 active?

Yes, as of the latest NPPES snapshot, NPI 1700249877 is active (record last updated 2022-09-30).

How do I verify Liana Tierney's NPI record?

Cross-check NPI 1700249877 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-30.