Gregory Niederauer, MD
NPI 1447471412 · Anesthesiology Physician · Sioux Falls, SD
Provider details
- NPI number
- 1447471412
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 7470 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
481 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 55 | $62 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 53 | $59 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 45 | $150 |
| Anesthesia for Other Procedure on Skin, Muscles, Or Nerves of Head, Neck, and Upper Back00300 | 27 | $102 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 27 | $60 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 26 | $49 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2009-09-01
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.