Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory A Crooke, M.D.

Specialist in Brooklyn, NY · enumerated 2005.

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

National Provider Identifier

1457351744

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory A Crooke

Credential M.D.

Sex Male

Practice address 4802 10th Ave, Brooklyn, NY, 11219

Phone (718) 283-7686

Fax (718) 635-7366

Enumeration date Jul 28, 2005

Last updated in NPPES Jan 27, 2014

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 179123 (NY) Primary

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

Other identifiers

Identifier	Type	State	Issuer
01797795	Medicaid	NY	-

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 Gregory Crooke?

The National Provider Identifier (NPI) for Gregory Crooke is 1457351744, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Crooke practice?

The practice location on file with NPPES is in Brooklyn, 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 2014-01-27.