Surgeon profile

John Antoniades, MD

Orthopedic Surgery · Baltimore, MD 21229NPI 1437187960

Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources

Contactverified live in NPPES · Jul 6, 2026

Active NPI3449 WILKENS AVE STE 300, BALTIMORE, MD 21229☎ 667-234-9992

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Operates atCMS affiliations, refreshed monthly

SAINT AGNES HOSPITAL · BALTIMORE, MD

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Orthopedics & cardiology tracked — more specialties coming.

47 Medicare cases/yr

46 patients

3 procedures

Procedure	Cases	Trend	Patients
Total Knee Replacement (TKA) CPT 27447	20	▼ -20%	20
Knee Arthroscopy — Meniscectomy CPT 29881	14	new	14
Total Hip Replacement (THA) CPT 27130	13	▲ +18%	12

CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.

$17 total received, 2025

1 payments

1 manufacturer relationship on file

See exactly which companies pay this surgeon — and how much — with a paid plan.

7-year payment trajectory (who's warming up, who's cooling off on this surgeon) is a paid feature. Unlock

Pulling CY2025 industry payments + 7-year history…