NPI Portal NPI Lookup & Verification

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

Hypatia Massey, RD, LDN, CNSC

Registered Dietitian in Burlington, MA · enumerated 2018.

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

National Provider Identifier

1811487838

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Hypatia Massey
Credential RD, LDN, CNSC
Sex Female
Practice address Burlington, MA, 01805
Enumeration date May 15, 2018
Last updated in NPPES Feb 15, 2022

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

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 4426 (MA) 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

How do I verify Hypatia Massey's NPI record?
Cross-check NPI 1811487838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1811487838 active?
Yes, as of the latest NPPES snapshot, NPI 1811487838 is active (record last updated 2022-02-15).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-15.