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Maryland Ent Center, LLC

Otolaryngology Physician in Baltimore, MD · enumerated 2006 · authorized official Annette Martyn, Practice Administrator.

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

National Provider Identifier

1689690513

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Registry record

Entity type Organization (Type 2)
Legal business name Maryland Ent Center, LLC
Other name <Unavail>
Practice address 3333 N Calvert St Ste 360, Baltimore, MD, 21218
Phone (410) 554-4455
Fax (410) 554-2171
Enumeration date Jul 14, 2006
Last updated in NPPES Jul 16, 2024

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Annette Martyn
Title Practice Administrator
Phone (847) 888-9000

Other identifiers

Identifier Type State Issuer
563200500 Medicaid MD -

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.

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Frequently asked questions

Who is the authorized official for Maryland Ent Center, LLC?
NPPES lists Annette Martyn (Practice Administrator) as the authorized official for this organization.
What is the NPI number for Maryland Ent Center, LLC?
The NPI for Maryland Ent Center, LLC is 1689690513, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-16.