Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Amy the Rdn, LLC

Q: What type of organization is Amy the Rdn, LLC?

Amy the Rdn, LLC is registered in NPPES as a Registered Dietitian (its primary provider taxonomy).

Registered Dietitian in South Orange, NJ · enumerated 2018 · authorized official Amy Witterschein, Owner.

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

National Provider Identifier

1578051181

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Amy the Rdn, LLC

Practice address 19 Prospect St, South Orange, NJ, 07079

Phone (973) 544-8649

Enumeration date Apr 30, 2018

Last updated in NPPES Apr 30, 2018

Taxonomy & classification

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 980393 Primary

Authorized official

Name Amy Witterschein

Title Owner

Phone (845) 649-2491

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 type of organization is Amy the Rdn, LLC?

Amy the Rdn, LLC is registered in NPPES as a Registered Dietitian (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-30.