Surgeon profile

Jan Slezak, MD

Anesthesiology · Barrington, NH 03825NPI 1750357307

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

Contactverified live in NPPES · Jul 8, 2026

Active NPI944 CALEF HWY, BARRINGTON, NH 03825☎ 603-664-0100

Checking live NPPES registry…

Operates atCMS affiliations, refreshed monthly

PORTSMOUTH REGIONAL HOSPITAL · PORTSMOUTH, NHCONCORD HOSPITAL- LACONIA · LACONIA, NHEXETER HOSPITAL INC · EXETER, NHWENTWORTH-DOUGLASS HOSPITAL · DOVER, NHYORK HOSPITAL · YORK, ME

Loading hospital affiliations…

Tracked procedure volumes

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

101 Medicare cases/yr

66 patients

2 procedures

Procedure	Cases	Trend	Patients
Radiofrequency Ablation — Lumbar Facet CPT 64635	86	≈ flat	53
Transforaminal Epidural Injection — Lumbar CPT 64483	15	new	13

Industry relationships

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

$295 total received, 2025

4 payments

3 manufacturer relationships on file

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

Unlock competitor intel — $199/mo

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…