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

Ms. Sue Helen Mustalish, RN

Registered Nurse in West Chester, PA · enumerated 2020.

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

National Provider Identifier

1306451745

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Sue Helen Mustalish

Credential RN

Sex Female

Practice address West Chester, PA, 19382

Phone (610) 405-0709

Enumeration date Sep 12, 2020

Last updated in NPPES Sep 12, 2020

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 219852L (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

Is NPI 1306451745 active?

Yes, as of the latest NPPES snapshot, NPI 1306451745 is active (record last updated 2020-09-12).

How do I verify Sue Mustalish's NPI record?

Cross-check NPI 1306451745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-12.