Surgeon profile

Michael O'sullivan, MD

Orthopedic Surgery · Springfield, MA 01107NPI 1376981266

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

Contactverified live in NPPES · Jul 8, 2026

Active NPI300 BIRNIE AVE STE 201, SPRINGFIELD, MA 01107☎ 413-785-4666

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Operates atCMS affiliations, refreshed monthly

BAYSTATE MEDICAL CENTER · SPRINGFIELD, MABAYSTATE FRANKLIN MEDICAL CENTER · GREENFIELD, MACOOLEY DICKINSON HOSPITAL INC,THE · NORTHAMPTON, MABAYSTATE NOBLE HOSPITAL · WESTFIELD, MABAYSTATE WING HOSPITAL · PALMER, MA

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Eight device-heavy specialties tracked — more coming.

173 Medicare cases/yr

165 patients

2 procedures

Procedure	Cases	Trend	Patients
Total Knee Replacement (TKA) CPT 27447	108	▲ +16%	103
Total Hip Replacement (THA) CPT 27130	65	≈ flat	62

Industry relationships

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

$242 total received, 2025

2 payments

2 manufacturer relationships on file

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Relationship trajectory, 2019–2025

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…