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Doctors / CA

ROSS ONDERSMA, MD

DIAGNOSTIC RADIOLOGY

Graduated: 2006

NPI: 1841403110

Practice Locations (23)

COUNTY OF SANTA CLARA

751 S BASCOM AVE, SANTA CLARA VLY MED

SAN JOSE, CA 951282604

4088855000

RADIA INC P S

1035 116TH AVE NE

BELLEVUE, WA 980044604

4256885000

MEDFORD RADIOLOGICAL GROUP PC

10604 NE 170TH ST

BOTHELL, WA 980116702

5416185800

RADIA OREGON RADIOLOGY MEDICAL GROUP LLC

10604 NE 170TH ST

BOTHELL, WA 980116702

4255631500

RADIA CALIFORNIA RADIOLOGY MEDICAL GROUP INC

10604 NE 170TH ST

BOTHELL, WA 980116702

4255631500

RADIOLOGY ASSOCIATES PA

EDMONDS, WA 98026

5016643914

RADIA INC P S

21601 76TH AVE W

EDMONDS, WA 980267507

4255631500

SWEDISH HEALTH SERVICES

13020 MERIDIAN AVE S

EVERETT, WA 982086468

4253573960

RADIA INC P S

751 NE BLAKELY DR

ISSAQUAH, WA 980296201

RADIA INC P S

12040 NE 128TH ST

KIRKLAND, WA 980343013

4258991800

EVERGREEN RADIA LLC

11521 NE 128TH ST, SUITE 200

KIRKLAND, WA 980344317

4259526100

RADIA INC P S

4525 3RD AVE SE, SUITE 200

LACEY, WA 985031010

3607543934

RADIA INC P S

413 LILLY RD NE

OLYMPIA, WA 985065133

3604919480

SOUTH SOUND RADIOLOGISTS INC P S

3417 ENSIGN RD NE

OLYMPIA, WA 985065064

3604934600

RADIA INC P S

705 CAROLINE ST

PORT ANGELES, WA 983623501

4255631500

RADIA INC P S

939 CAROLINE ST

PORT ANGELES, WA 983623909

3604177441

RADIA INC P S

747 BROADWAY RM, SUITE 404

SEATTLE, WA 981224379

2063866000

RADIA INC P S

700 MINOR AVE

SEATTLE, WA 981042146

4255631500

RADIA INC P S

500 17TH AVE

SEATTLE, WA 981225711

2063203700

RADIA INC P S

747 BROADWAY

SEATTLE, WA 981224379

2063866000

RADIA INC P S

808 N 5TH AVE

SEQUIM, WA 983823045

3605825562

RADIA INC P S

840 N 5TH AVE, SUITE 1000

SEQUIM, WA 983823045

3605822620

CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION

1201 S MILLER ST

WENATCHEE, WA 988013201

5096622208

Source: CMS National Downloadable File, September 2026.

ROSS ONDERSMA, MD | HealthCareAtlasUSA