Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greater Washington Orthopaedic Group

Orthopaedic Surgery Physician in Rockville, MD · enumerated 2006 · authorized official Dana Winkler, Administrator.

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

National Provider Identifier

1003883331

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Registry record

Entity type Organization (Type 2)

Legal business name Greater Washington Orthopaedic Group

Other name <Unavail>

Practice address 9850 Key West Ave, Suite 120, Rockville, MD, 20850

Phone (301) 762-4800

Fax (301) 762-6542

Enumeration date Mar 7, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dana Winkler

Title Administrator

Phone (301) 589-3324

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

What type of organization is Greater Washington Orthopaedic Group?

Greater Washington Orthopaedic Group is registered in NPPES as a Orthopaedic Surgery Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.