Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregg E Rusczyk, MD

Pediatric Emergency Medicine (Pediatrics) Physician in Flushing, NY · enumerated 2006.

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

National Provider Identifier

1558383372

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Registry record

Entity type Individual (Type 1)

Name Gregg E Rusczyk

Credential MD

Sex Male

Practice address 56-45 Main St, New York Hospital Medical Center of Queen Emergency Dep, Flushing, NY, 11355

Phone (718) 670-1231

Fax (610) 617-6280

Enumeration date Jul 24, 2006

Last updated in NPPES Aug 19, 2025

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 211864 (NY) Secondary

2080P0204X Pediatric Emergency Medicine (Pediatrics) Physician Allopathic & Osteopathic Physicians · License 211864 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

What is the NPI number for Gregg Rusczyk?

The National Provider Identifier (NPI) for Gregg Rusczyk is 1558383372, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregg Rusczyk practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-19.