Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Sylvio P Lessa PC

Dental Clinic/Center in Watertown, MA · enumerated 2008 · authorized official Sylvio Lessa, Dentist.

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

National Provider Identifier

1255590782

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Registry record

Entity type Organization (Type 2)

Legal business name Dr Sylvio P Lessa PC

Practice address 131 Watertown St, Watertown, MA, 02472

Phone (617) 924-1882

Enumeration date Jun 9, 2008

Last updated in NPPES Jun 9, 2008

Taxonomy & classification

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities · License 9495 (MA) Primary

Authorized official

Name Sylvio Lessa

Title Dentist

Phone (617) 924-1882

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

Where is Dr Sylvio P Lessa PC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-09. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-09.