NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Abbey Reiser

Oncology Nutrition Registered Dietitian in New York, NY · enumerated 2021.

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

National Provider Identifier

1750959524

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Registry record

Entity type Individual (Type 1)
Name Abbey Reiser
Sex Female
Practice address New York, NY, 10029
Phone (212) 824-9565
Enumeration date Jun 16, 2021
Last updated in NPPES Jun 16, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133VN1301X Oncology Nutrition Registered Dietitian Dietary & Nutritional Service Providers · License 86076374 (RI) 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.

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Frequently asked questions

What specialty is Abbey Reiser?
Abbey Reiser is registered in NPPES with the primary taxonomy of Oncology Nutrition Registered Dietitian. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-16.