Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Steven O Hiaasen, MD

Individual provider Radiation Oncology Physician · NPI 1558368241

Steven O Hiaasen, MD is a Radiation Oncology Physician in Sun City, Arizona. Licensed in Arizona. Registered with an NPI since 2005.

Licensed in
AZ
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

13184 N 103rd Dr
Sun City, AZ 85351-3038
Phone: (623) 972-2902
Fax: (623) 972-2539
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 18654 (AZ)

Record details

NPI number1558368241
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESSeptember 26, 2007

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