Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Genera Health Direct LLC

Family Medicine Physician in Needham, MA · enumerated 2018 · authorized official Margarita Castro-Zarraga, Owner/Physician.

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

National Provider Identifier

1801398953

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Registry record

Entity type Organization (Type 2)

Legal business name Genera Health Direct LLC

Practice address 105 Chestnut St Ste 35, Needham, MA, 02492

Phone (508) 563-3003

Enumeration date Mar 5, 2018

Last updated in NPPES Apr 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 251722 (MA) Primary

Authorized official

Name Margarita Castro-Zarraga

Title Owner/Physician

Phone (773) 322-9949

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-04-22. Verify at npiregistry.cms.hhs.gov.

Where is Genera Health Direct LLC located?

The practice location on file with NPPES is in Needham, MA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-22.