Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Dianne Otero Cassidy, IBCLC

Specialist in Rochester, NY · enumerated 2010.

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

National Provider Identifier

1740506906

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Dianne Otero Cassidy

Credential IBCLC

Sex Female

Practice address 175 W Meadows Dr, Rochester, NY, 14616

Phone (585) 261-4834

Enumeration date Apr 13, 2010

Last updated in NPPES Jun 11, 2013

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 108-42131 (NY) 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 is the NPI number for Dianne Cassidy?

The National Provider Identifier (NPI) for Dianne Cassidy is 1740506906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Dianne Cassidy practice?

The practice location on file with NPPES is in Rochester, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-11.