Surgeon profile

Nathaniel Stewart, M.D.

Orthopedic Surgery · Altoona, WI 54720NPI 1225064017

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

Contactverified live in NPPES · Jul 6, 2026

Active NPI1200 OAKLEAF WAY STE A, ALTOONA, WI 54720☎ 715-832-1400

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Operates atCMS affiliations, refreshed monthly

OAKLEAF SURGICAL HOSPITAL · ALTOONA, WIASPIRUS MEDFORD HOSPITAL & CLINICS, INC · MEDFORD, WIASPIRUS STANLEY HOSPITAL · STANLEY, WIMAYO CLINIC HEALTH SYSTEM EAU CLAIRE HOSPITAL · EAU CLAIRE, WIMARSHFIELD MEDICAL CENTER - RICE LAKE · RICE LAKE, WI

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Tracked procedure volumes

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

77 Medicare cases/yr

73 patients

2 procedures

Procedure	Cases	Trend	Patients
Total Hip Replacement (THA) CPT 27130	50	▼ -22%	49
Total Knee Replacement (TKA) CPT 27447	27	▼ -18%	24

Industry relationships

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

$661 total received, 2025

12 payments

3 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…