Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Ann Irish, DO

Physical Medicine & Rehabilitation Physician in Greeley, CO · enumerated 2006.

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

National Provider Identifier

1215965686

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Registry record

Entity type Individual (Type 1)

Name Margaret Ann Irish

Credential DO

Sex Female

Practice address 1175 58th Ave Ste 200, Greeley, CO, 80634

Phone (970) 495-0444

Fax (970) 488-3106

Enumeration date Jun 28, 2006

Last updated in NPPES Oct 20, 2011

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License DOS-936 (HI) Secondary

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 32909 (CO) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0000288209	Other	HI	HMSA BILLING NUMBER
01329093	Medicaid	CO	-
636269-01	Medicaid	HI	-

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.

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Frequently asked questions

What specialty is Margaret Irish?

Margaret Irish is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Mollie Bradmon Physician Assistant · Greeley, CO NPI 1679859995 Christine Cunningham Clinical Social Worker · Greeley, CO NPI 1679182059 Julie Ward Clinical Social Worker · Greeley, CO NPI 1538832977

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-20.