Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Doreen S Sim

Q: What is the NPI number for Doreen Sim?

The National Provider Identifier (NPI) for Doreen Sim is 1619541612, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Registered Nurse in Flushing, NY · enumerated 2021.

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

National Provider Identifier

1619541612

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Registry record

Entity type Individual (Type 1)

Name Doreen S Sim

Sex Female

Practice address 14227 Franklin Ave, Flushing, NY, 11355

Phone (718) 670-3400

Enumeration date May 14, 2021

Last updated in NPPES May 14, 2021

Taxonomy & licenses

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 531382-1 (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 Doreen Sim?

The National Provider Identifier (NPI) for Doreen Sim is 1619541612, a Type 1 (individual) record in the CMS NPPES registry.

Where does Doreen Sim practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-14.