Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Marsi Paige Markowitz, RD, CDN

Registered Dietitian in Great Neck, NY · enumerated 2015 · practices at Nutrition From Within Pllc.

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

National Provider Identifier

1164898805

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Registry record

Entity type Individual (Type 1)

Name Mrs. Marsi Paige Markowitz

Credential RD, CDN

Sex Female

Practice address 14 Fir Dr, Great Neck, NY, 11024

Phone (516) 263-6655

Enumeration date Aug 17, 2015

Last updated in NPPES Jun 27, 2020

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 007619 (NY) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1164898805 active?

Yes, as of the latest NPPES snapshot, NPI 1164898805 is active (record last updated 2020-06-27).

How do I verify Marsi Markowitz's NPI record?

Cross-check NPI 1164898805 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Nutrition From Within Pllc Registered Dietitian · Great Neck, NY NPI 1790302529

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-27.