NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cosette Jamieson MD Pllc

Specialist in Washington, DC · enumerated 2009 · authorized official Cosette Jamieson, M.D..

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

National Provider Identifier

1366778011

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Cosette Jamieson MD Pllc
Practice address 106 Irving St Nw, Suite 2500 N. Tower, Washington, DC, 20010
Phone (202) 877-5408
Fax (202) 722-0505
Enumeration date Oct 29, 2009
Last updated in NPPES Oct 29, 2009

Taxonomy & classification

174400000X Specialist Other Service Providers · License MD19681 (DC) Primary

Authorized official

Name Cosette Jamieson
Title M.D.
Phone (202) 877-5408

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-10-29. Verify at npiregistry.cms.hhs.gov.
Where is Cosette Jamieson MD Pllc located?
The practice location on file with NPPES is in Washington, DC.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-29.