Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rock Valley Pathologist

Chemical Pathology Physician in Rockford, IL · enumerated 2006 · authorized official Dennis Dolleton, President.

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

National Provider Identifier

1891809752

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Registry record

Entity type Organization (Type 2)

Legal business name Rock Valley Pathologist

Practice address 5666 E State St, Rockford, IL, 61108

Phone (815) 395-5105

Fax (815) 395-5364

Enumeration date Aug 18, 2006

Last updated in NPPES Jul 16, 2007

Taxonomy & classification

207ZP0104X Chemical Pathology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dennis Dolleton

Title President

Phone (815) 395-5110

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

Where is Rock Valley Pathologist located?

The practice location on file with NPPES is in Rockford, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-16. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-16.