Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lindsay Marr, RD

Pediatric Nutrition Registered Dietitian in New Haven, CT · enumerated 2020.

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

National Provider Identifier

1376172155

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Registry record

Entity type Individual (Type 1)

Name Lindsay Marr

Credential RD

Sex Female

Practice address 20 York St, New Haven, CT, 06510

Phone (203) 688-5010

Enumeration date Apr 3, 2020

Last updated in NPPES Apr 3, 2020

Taxonomy & licenses

133VN1004X Pediatric Nutrition Registered Dietitian Dietary & Nutritional Service Providers · License 001736 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
001736	Other	CT	STATE OF CONNECTICUT DEPARTMENT OF PUBLIC HEALTH

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 Lindsay Marr?

Lindsay Marr is registered in NPPES with the primary taxonomy of Pediatric Nutrition Registered Dietitian. 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 2020-04-03.