Gregory George Niederauer, MD
Anesthesiology Physician · Sioux Falls, SD
Gregory George Niederauer, MD is an anesthesiology physician with a practice address in Sioux Falls, South Dakota, and NPI 1447471412, issued on May 1, 2007. Check the license (South Dakota 7470, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Gregory George Niederauer
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 7470 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1100 E 26TH St, Sioux Falls, SD 57105
- Phone
- (605) 338-7098
- Enumerated
- May 1, 2007
- Record last updated
- Sep 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (605) 335-3505
- Medicaid ID
- 5707310 SD
- Medicare enrollment
- Enrolled (PECOS I20090728000599); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2000
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 96 in South Dakota → Look up another NPI →
Also registered at 1100 E 26TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Ball, CRNACertified Registered Nurse Anesthetist1992123913
- Travis Behrens, CRNACertified Registered Nurse Anesthetist1104357482
- Jennifer Callahan, CRNACertified Registered Nurse Anesthetist1730136623
- Craig Carlson, MDAnesthesiology Physician1790725372
- Donald Christensen, CRNASpecialist1740217934
- Brian Devries, MDAnesthesiology Physician1225107055
Verify Gregory George Niederauer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 7470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Anesthesiology Associates IncSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory George Niederauer among 96 anesthesiology physician records in South Dakota
Gregory George Niederauer, MD is one of 96 anesthesiology physician records with a practice address in South Dakota. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 60% of them.
- NPI issued2007 · 60% of these records are older, 28% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2000 · median 2005 among the 68 with a school on file
- Record last updated2009 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in South Dakota
There are 96 anesthesiology physician records in South Dakota.
All 96 in South Dakota → Every provider in Sioux Falls → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Scott Atchison, MDSioux Falls, SD 571051245206523
- Douglas Bell, MDSioux Falls, SD 571051649246968
- Thomas Christopherson, MDSioux Falls, SD 571051962478297
- Dean Dewald, M.D.Sioux Falls, SD 571051972576023
- Craig Donelan, M.D.Sioux Falls, SD 571051417934696
- Jack Gaspari, MDSioux Falls, SD 571051659347987
- Robert Grady, MDSioux Falls, SD 571051568438604
- Barry Hein, MDSioux Falls, SD 571051700852076
Common questions
What is Gregory George Niederauer, MD's NPI number?
Gregory George Niederauer, MD's National Provider Identifier (NPI) is 1447471412, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory George Niederauer, MD located?
The NPPES record lists a practice address at 1100 E 26TH St, Sioux Falls, SD, 57105. Phone: (605) 338-7098. Providers update this record themselves, so call before visiting.
How can I verify Gregory George Niederauer, MD's license?
NPPES lists South Dakota license number 7470, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.