Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Concern Company, Inc.,

Non-emergency Medical Transport (VAN) in Brookline, MA · enumerated 2007 · authorized official Yaroslav Boyko, President.

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

National Provider Identifier

1437373503

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Registry record

Entity type Organization (Type 2)

Legal business name Concern Company, Inc.,

Practice address 45 Longwood Ave, Suite 806, Brookline, MA, 02446

Phone (617) 592-9202

Fax (617) 507-8410

Enumeration date Apr 12, 2007

Last updated in NPPES Apr 15, 2008

Taxonomy & classification

343900000X Non-emergency Medical Transport (VAN) Transportation Services Primary

Authorized official

Name Yaroslav Boyko

Title President

Phone (617) 592-9202

Other identifiers

Identifier	Type	State	Issuer
1700057	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 2008-04-15. Verify at npiregistry.cms.hhs.gov.

Where is Concern Company, Inc., located?

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

Providers at this address

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Laura Borodyansky Gastroenterology Physician · Brookline, MA NPI 1689865214

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-15.