Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Russell D. Donnelly, M.D.,P.C.

Q: What type of organization is Russell D. Donnelly, M.D.,P.C.?

Russell D. Donnelly, M.D.,P.C. is registered in NPPES as a Specialist (its primary provider taxonomy).

Specialist in Worcester, MA · enumerated 2006 · authorized official Russell Donnelly, President.

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

National Provider Identifier

1780608364

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Registry record

Entity type Organization (Type 2)

Legal business name Russell D. Donnelly, M.D.,P.C.

Practice address 123 Summer St, Suite 535, Worcester, MA, 01608

Phone (508) 363-6363

Fax (508) 363-6366

Enumeration date Jul 27, 2006

Last updated in NPPES Jan 13, 2011

Taxonomy & classification

174400000X Specialist Other Service Providers · License 56088 (MA) Primary

Authorized official

Name Russell Donnelly

Title President

Phone (508) 363-6363

Other identifiers

Identifier	Type	State	Issuer
9718401	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

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 Russell D. Donnelly, M.D.,P.C.?

Russell D. Donnelly, M.D.,P.C. is registered in NPPES as a Specialist (its primary provider taxonomy).

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