Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Merrimack Urology Assoc, PC

Urology Physician in Chelmsford, MA · enumerated 2006 · authorized official Robert Edelstein, President.

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

National Provider Identifier

1316976269

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Registry record

Entity type Organization (Type 2)

Legal business name Merrimack Urology Assoc, PC

Practice address 31 Village Sq, Chelmsford, MA, 01824

Phone (978) 256-9507

Enumeration date Jul 2, 2006

Last updated in NPPES May 7, 2013

Taxonomy & classification

208800000X Urology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Robert Edelstein

Title President

Phone (978) 256-9507

Other identifiers

Identifier	Type	State	Issuer
9700293	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.

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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 2013-05-07. Verify at npiregistry.cms.hhs.gov.

Where is Merrimack Urology Assoc, PC located?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-07.