Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Antoniades Orthopaedics, LLC

Q: What type of organization is Antoniades Orthopaedics, LLC?

Antoniades Orthopaedics, LLC is registered in NPPES as a Orthopaedic Surgery Physician (its primary provider taxonomy).

Orthopaedic Surgery Physician in Baltimore, MD · enumerated 2006 · authorized official John Antoniades, MD.

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

National Provider Identifier

1710913934

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Antoniades Orthopaedics, LLC

Practice address 3449 Wilkens Ave, Ste 107, Baltimore, MD, 21229

Phone (410) 368-9992

Fax (410) 368-9997

Enumeration date Jun 23, 2006

Last updated in NPPES Oct 22, 2012

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Secondary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name John Antoniades

Title MD

Phone (410) 951-1773

Other identifiers

Identifier	Type	State	Issuer
873AAN	Other	MD	BC / BS OF MD
J817	Other	MD	BLUECHOICE

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 Antoniades Orthopaedics, LLC?

Antoniades Orthopaedics, LLC is registered in NPPES as a Orthopaedic Surgery Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-22.