Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Concerto Massachusetts LLC

Q: What is the NPI number for Concerto Massachusetts LLC?

The NPI for Concerto Massachusetts LLC is 1558970525, a Type 2 (organization) record in the CMS NPPES registry.

End-Stage Renal Disease (ESRD) Treatment Clinic/Center in Stoughton, MA · enumerated 2020 · authorized official Shimon Meystel, Chief Executive Officer.

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

National Provider Identifier

1558970525

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Registry record

Entity type Organization (Type 2)

Legal business name Concerto Massachusetts LLC

Practice address 1256 Park St Ste 102, Stoughton, MA, 02072

Phone (847) 233-1200

Fax (847) 443-1328

Enumeration date Jul 27, 2020

Last updated in NPPES Sep 9, 2024

Taxonomy & classification

261QE0700X End-Stage Renal Disease (ESRD) Treatment Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Shimon Meystel

Title Chief Executive Officer

Phone (847) 443-1228

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

Who is the authorized official for Concerto Massachusetts LLC?

NPPES lists Shimon Meystel (Chief Executive Officer) as the authorized official for this organization.

What is the NPI number for Concerto Massachusetts LLC?

The NPI for Concerto Massachusetts LLC is 1558970525, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-09.