NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greatest Joy Birth Services

Midwife in Wylie, TX · enumerated 2014 · authorized official Kristy Hammack, Owner.

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

National Provider Identifier

1679979421

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Greatest Joy Birth Services
Practice address 212 W Marble St, Wylie, TX, 75098
Phone (469) 443-6429
Fax (469) 444-5004
Enumeration date Nov 6, 2014
Last updated in NPPES Feb 25, 2020

Taxonomy & classification

176B00000X Midwife Other Service Providers · License 99099 (TX) Primary

Authorized official

Name Kristy Hammack
Title Owner
Phone (469) 443-6429

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 Greatest Joy Birth Services?
Greatest Joy Birth Services is registered in NPPES as a Midwife (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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-25.