NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Washington Square Dermatology,LLC

Medical Specialty Clinic/Center in Brookline, MA · enumerated 2011 · authorized official Dorothy Cunningham, Owner/Dermatologist.

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

National Provider Identifier

1649564261

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Washington Square Dermatology,LLC
Other name <Unavail>
Practice address 651 Washington St, Suite 110, Brookline, MA, 02446
Fax (617) 734-1709
Enumeration date May 31, 2011
Last updated in NPPES May 31, 2011

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities · License 82037 (MA) Primary

Authorized official

Name Dorothy Cunningham
Title Owner/Dermatologist

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 Washington Square Dermatology,LLC?
NPPES lists Dorothy Cunningham (Owner/Dermatologist) as the authorized official for this organization.
What is the NPI number for Washington Square Dermatology,LLC?
The NPI for Washington Square Dermatology,LLC is 1649564261, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-31.