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

Gregory George Niederauer, MD

Individual provider Anesthesiology Physician · NPI 1447471412

Gregory George Niederauer, MD is an Anesthesiology in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2000, 26 years ago. Practices with Anesthesiology Associates Inc, a 27-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
26
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1100 E 26th St
Sioux Falls, SD 57105-4046
Phone: (605) 338-7098
Fax: (605) 335-3505
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 7470 (SD)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence 7470 (SD)

Record details

NPI number1447471412
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2007
Last updated in NPPESSeptember 1, 2009

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2000 (26 years in practice)
Group practice Anesthesiology Associates Inc — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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