Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Four Corners Nephrology Associates PC

Nephrology Physician in Farmington, NM · enumerated 2006 · authorized official Billie Stolworthy, Office Manager.

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

National Provider Identifier

1144327172

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Registry record

Entity type Organization (Type 2)

Legal business name Four Corners Nephrology Associates PC

Practice address 622 W Maple St Ste H, Farmington, NM, 87401

Phone (505) 326-6521

Fax (505) 325-6699

Enumeration date Sep 20, 2006

Last updated in NPPES Apr 1, 2011

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Billie Stolworthy

Title Office Manager

Phone (505) 326-6521

Other identifiers

Identifier	Type	State	Issuer
311843	Medicaid	AZ	-
F3805	Medicaid	NM	-
94004736	Medicaid	CO	-

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 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.

What type of organization is Four Corners Nephrology Associates PC?

Four Corners Nephrology Associates PC is registered in NPPES as a Nephrology Physician (its primary provider taxonomy).

Providers at this address

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Neil Collinge Nephrology Physician · Farmington, NM NPI 1912004904

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-01.