Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Garth A. Aasen, MD

Individual provider Hematology (Pathology) Physician · NPI 1013159037

Garth A. Aasen, MD practises Pathology in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2009, 17 years ago. Practices with Physicians Laboratory Ltd, a 15-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
17
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1301 S Cliff Ave Ste 700
Sioux Falls, SD 57105-1019
Phone: (605) 322-7200
Fax: (605) 322-7222
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 10663 (SD)
Hematology (Pathology) Physician Taxonomy 207ZH0000X · Licence 10663 (SD)

Record details

NPI number1013159037
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2009
Last updated in NPPESMarch 5, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2009 (17 years in practice)
Group practice Physicians Laboratory Ltd — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,199
Services billed 4,394 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Physicians Laboratory Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 12 are shown here.

Other providers in Sioux Falls