Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Cavanaugh Od PC

Optometrist in Sidney, MT · enumerated 2010 · authorized official Gregory Cavanaugh, Owner.

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

National Provider Identifier

1295050029

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Registry record

Entity type Organization (Type 2)

Legal business name Dr. Gregory Cavanaugh Od PC

Other name <Unavail>

Practice address 112 2nd St Se, Sidney, MT, 59270

Phone (406) 482-2609

Fax (406) 482-2697

Enumeration date Apr 5, 2010

Last updated in NPPES Aug 9, 2012

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 415OPT (MT) Primary

Authorized official

Name Gregory Cavanaugh

Title Owner

Phone (406) 482-2609

Other identifiers

Identifier	Type	State	Issuer
410007688	Other	MT	RAILROAD MEDICARE
4064822609	Other	MT	VSP
893290	Other	MT	ND VISION
000026210	Other	MT	BCBS
0487019	Medicaid	MT	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-08-09. Verify at npiregistry.cms.hhs.gov.

Where is Dr. Gregory Cavanaugh Od PC located?

The practice location on file with NPPES is in Sidney, MT.

Providers at this address

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Sidney Eye Care Pllc Optometrist · Sidney, MT NPI 1750638219

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-09.