Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Lillian Strell, FNP-C

Family Nurse Practitioner in Pittsburgh, PA · enumerated 2021.

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

National Provider Identifier

1639841778

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Registry record

Entity type Individual (Type 1)

Name Lillian Strell

Credential FNP-C

Sex Female

Practice address Pittsburgh, PA, 15213

Phone (412) 641-4530

Enumeration date Sep 28, 2021

Last updated in NPPES Jun 19, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP024436 (PA) 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

How do I verify Lillian Strell's NPI record?

Cross-check NPI 1639841778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639841778 active?

Yes, as of the latest NPPES snapshot, NPI 1639841778 is active (record last updated 2024-06-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-19.