Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Steward Pet Imaging, L.L.C.

Mobile Radiology Clinic/Center in Holyoke, MA · enumerated 2008 · authorized official Robert Guyon, Coo.

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

National Provider Identifier

1356599542

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Registry record

Entity type Organization (Type 2)

Legal business name Steward Pet Imaging, L.L.C.

Other name <Unavail>

Parent organization Steward Pet Imaging, L.L.C.

Practice address 575 Beech St, Holyoke, MA, 01040

Phone (877) 877-8455

Fax (866) 927-0079

Enumeration date Sep 3, 2008

Last updated in NPPES Jan 13, 2011

Taxonomy & classification

261QR0208X Mobile Radiology Clinic/Center Ambulatory Health Care Facilities · License 4NNJ (MA) Primary

Authorized official

Name Robert Guyon

Title Coo

Phone (617) 789-5047

Other identifiers

Identifier	Type	State	Issuer
110073236H	Medicaid	MA	-

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

Where is Steward Pet Imaging, L.L.C. located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-01-13. Verify at npiregistry.cms.hhs.gov.

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