HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / IL

WILLIAM GREHAN, MD

ANESTHESIOLOGY

Graduated: 1992

NPI: 1417961061

Practice Locations (5)

MIDWEST ANESTHESIA PROVIDERS SC

4500 MEMORIAL DR

BELLEVILLE, IL 622265360

6182337750

GOTTLIEB MIDWEST ANESTHESIOLOGISTS, LLC

701 W N AVE

MELROSE PARK, IL 601601612

7086813200

ADVOCATE HEALTH AND HOSPITALS CORPORATION

4440 W 95TH ST

OAK LAWN, IL 604532600

7086844393

CEP AMERICA - ANESTHESIA PC

25 HOSPITAL CTR BLVD

HILTON HEAD, SC 299262738

8436816122

BLACK HILLS SURGICAL HOSPITAL LLC

216 ANAMARIA DR

RAPID CITY, SD 577017366

6057214700

Source: CMS National Downloadable File, September 2026.

WILLIAM GREHAN, MD | HealthCareAtlasUSA