Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christine Castle, MSRD

Nutritionist in Worcester, MA · enumerated 2006.

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

National Provider Identifier

1043326721

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Christine Castle

Credential MSRD

Sex Female

Practice address 5 Neponset St, Worcester, MA, 01606

Phone (508) 852-6175

Fax (508) 595-2123

Enumeration date Aug 22, 2006

Last updated in NPPES Sep 26, 2018

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers · License 140 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
AA17030	Other	-	HARVARD PILGRIM HEALTHCAR
MT0712	Other	-	MEDICARE B
042472266	Other	-	THREE RIVERS
7559582	Other	-	AETNA US HEALTHCARE
67852	Other	-	FALLON COMMUNITY HEALTH P
LD0137	Other	-	BLUE CROSS
042472266	Other	-	PRIVATE HEALTHCARE SYSTEM

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 1043326721 active?

Yes, as of the latest NPPES snapshot, NPI 1043326721 is active (record last updated 2018-09-26).

How do I verify Christine Castle's NPI record?

Cross-check NPI 1043326721 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-26.