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 / IA

JASON E GRENNAN, MD

DIAGNOSTIC RADIOLOGY

Medical school: UNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE

Graduated: 1999

NPI: 1457313314

Practice Locations (41)

RADIOLOGY CONSULTANTS OF IOWA PLC

701 10TH ST SE

CEDAR RAPIDS, IA 524031251

3193986643

GIBSON COMMUNITY HOSPITAL ASSOCIATION

1120 N MELVIN ST

GIBSON CITY, IL 609361477

2177844251

RELIANT MEDICAL GROUP INC

460 SOUTHBRIDGE ST

AUBURN, MA 015012442

5085952700

RELIANT MEDICAL GROUP INC

234 WASHINGTON ST

HUDSON, MA 017493735

5085952700

RADIOLOGISTS OF CAPE COD HOSPITAL

27 PARK ST

HYANNIS, MA 026015230

5088625000

RELIANT MEDICAL GROUP INC

225 NEW LANCASTER RD

LEOMINSTER, MA 014534958

9785346500

RELIANT MEDICAL GROUP INC

241 N MAIN ST

LEOMINSTER, MA 014532219

5085952700

RELIANT MEDICAL GROUP INC

101 CEDAR ST

MILFORD, MA 017571101

5086343100

RELIANT MEDICAL GROUP INC

1400 WORCESTER ST

NATICK, MA 017601532

5085952700

RELIANT MEDICAL GROUP INC

378 MAPLE AVE

SHREWSBURY, MA 015452673

5083687820

RELIANT MEDICAL GROUP INC

24 NEWTON ST

SOUTHBOROUGH, MA 017721215

5084864472

RELIANT MEDICAL GROUP INC

900 UNION ST

WESTBOROUGH, MA 015815408

5083668836

RELIANT MEDICAL GROUP INC

5 NEPONSET ST

WORCESTEER, MA 016062714

5085952300

RELIANT MEDICAL GROUP INC

366 SHREWSBURY ST

WORCESTER, MA 016044647

5085952700

RELIANT MEDICAL GROUP INC

123 SUMMER ST

WORCESTER, MA 016081216

5083635000

THE DULUTH CLINIC LTD

420 E 1ST ST

DULUTH, MN 558051901

2187868364

THE DULUTH CLINIC LTD

400 E 3RD ST

DULUTH, MN 558051951

2187868364

HANNIBAL REGIONAL HEALTHCARE SYSTEM INC

PO BOX, SUITE 1257

HANNIBAL, MO 634011257

5732485460

TRINITY HEALTH

1 BURDICK EXPY W

MINOT, ND 587014406

7018575000

EAST GEORGIA RADIOLOGY LLC

578 SANDY POINTE PL

ASHLAND, NE 680037434

8332286889

ALLEN MEMORIAL HOSPITAL CORPORATION

3117 S 174TH CIR

OMAHA, NE 681302092

3192353697

EAST MEMPHIS PET IMAGING LLC

3117 S 174TH CIR

OMAHA, NE 681302092

9016853114

CENTRAL KENTUCKY RADIOLOGY PLLC

3117 S 174TH CIR

OMAHA, NE 681302092

8592190542

LIMA RADIOLOGICAL ASSOCIATES

3117 S 174TH CIR

OMAHA, NE 681302092

4192269023

AVERA MCKENNAN

3117 S 174TH CIR, AVERA RADIOLOGY

OMAHA, NE 681302092

6053224878

PLAINS RADIOLOGY SERVICES LLC

3117 S 174TH CIR, JASON E GRENNAN MD

OMAHA, NE 681302092

3083986400

GREAT PLAINS RADIOLOGY LLC

3117 S 174TH CIR, JASON E GRENNAN MD

OMAHA, NE 681302092

3083986400

GRAND ISLAND RADIOLOGY ASSOCIATES PC

3117 S 174TH CIR, JASON E GRENNAN MD

OMAHA, NE 681302092

3083986400

STATE UNIVERSITY OF IOWA

3117 S 174TH CIR, UNIVERSITY OF IOWA HEALTH CARE

OMAHA, NE 681302092

8332286889

RADIOLOGY CONSULTANTS OF IOWA PLC

3117 S 174TH CIR

OMAHA, NE 681302092

3193640121

RADIOLOGISTS OF CAPE COD HOSPITAL

3117 S 174TH CIR

OMAHA, NE 681302092

5088627777

DIAGNOSTIC RADIOLOGY PC

3117 S 174TH CIR

OMAHA, NE 681302092

4024931212

MCFARLAND CLINIC PC

3117 S 174TH CIR

OMAHA, NE 681302092

5152394456

SOUTHEAST IOWA REGIONAL MEDICAL CENTER INC

3117 S 174TH CIR

OMAHA, NE 681302092

3197681000

HANNIBAL REGIONAL HEALTHCARE SYSTEM INC

17310 WRIGHT ST, SUITE 103

OMAHA, NE 681302405

5732481300

CHICKASAW NATION DIVISION OF HEALTH

1921 STONECIPHER DR

ADA, OK 748203439

5804363980

EAST MEMPHIS PET IMAGING LLC

6005 PARK AVE, SUITE 101B

MEMPHIS, TN 381195206

9016853114

PROSSER PUBLIC HOSPITAL DISTRICT OF BENTON COUNTY

200 PROSSER HEALTH DR

PROSSER, WA 993507832

5097886022

PRAIRIE DU CHIEN MEMORIAL HOSPITAL ASSOCIATION INC

37868 US HWY 18

PRAIRIE DU CHIEN, WI 538218416

6083572000

MEMORIAL HOSPITAL OF SHERIDAN COUNTY

1401 W 5TH ST

SHERIDAN, WY 828012705

3076721000

BIG HORN HEALTH NETWORK

1470 SUGARLAND DR, SUITE 1

SHERIDAN, WY 828015774

3076732411

Source: CMS National Downloadable File, September 2026.

JASON GRENNAN, MD | HealthCareAtlasUSA