NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

William M. Koenig, D.D.S., P.A.

Dentist in Baltimore, MD · enumerated 2013 · authorized official William Koenig, Dentist.

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

National Provider Identifier

1902230436

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name William M. Koenig, D.D.S., P.A.
Parent organization William M. Koenig, D.D.S., P.A.
Practice address 8424 Old Harford Rd, Suite 2a, Baltimore, MD, 21234
Phone (410) 665-3300
Enumeration date Sep 3, 2013
Last updated in NPPES Sep 3, 2013

Taxonomy & classification

122300000X Dentist Dental Providers · License MD5441 (MD) Primary

Authorized official

Name William Koenig
Title Dentist
Phone (410) 665-3300

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 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.
What type of organization is William M. Koenig, D.D.S., P.A.?
William M. Koenig, D.D.S., P.A. is registered in NPPES as a Dentist (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-03.