Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Riverside Internal Medicine

Specialist in Riverside, CT · enumerated 2007 · authorized official Neil Boside, President.

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

National Provider Identifier

1134303977

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Registry record

Entity type Organization (Type 2)

Legal business name Riverside Internal Medicine

Practice address 1200 E Putnam Ave, Riverside, CT, 06878

Phone (203) 637-0057

Fax (203) 637-3280

Enumeration date Dec 27, 2007

Last updated in NPPES Jan 2, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License 035452 (CT) Primary

Authorized official

Name Neil Boside

Title President

Phone (203) 637-0057

Other identifiers

Identifier	Type	State	Issuer
010035452CT01	Other	-	ANTHEM BLUE CROSS
P479423	Other	CT	OXFORD
78467	Other	NY	EMPIRE BLUE CROSS
OV9649	Other	CT	HEALTH NET

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 2008-01-02. Verify at npiregistry.cms.hhs.gov.

Where is Riverside Internal Medicine located?

The practice location on file with NPPES is in Riverside, CT.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-02.