Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rita Weiss, M.D.,PH.D.

Hematology & Oncology Physician in Great Neck, NY · enumerated 2005.

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

National Provider Identifier

1578566089

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Registry record

Entity type Individual (Type 1)

Name Rita Weiss

Credential M.D.,PH.D.

Sex Female

Practice address 107 Northern Blvd, Ste 306, Great Neck, NY, 11021

Phone (516) 482-0080

Fax (516) 482-8653

Enumeration date May 31, 2005

Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 140227 (NY) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License ME176336 (FL) 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
130879600	Medicaid	FL	-
XC433	Other	FL	HFMG

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Rita Weiss?

Rita Weiss is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-21.