Gregory Hieb, MD
NPI 1164498655 · Anesthesiology Physician · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Hieb, MD is a Anesthesiology Physician provider in Sioux Falls, SD (NPI 1164498655).
Provider details
- NPI number
- 1164498655
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5647 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
385 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 Large Bowel Using an Endoscope00811 | 59 | $59 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 58 | $13 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 53 | $71 |
| Anesthesia for Procedure on Heart and Large Blood Vessels00560 | 30 | $212 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 26 | $41 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 23 | $47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-24
- Last updated
- 2024-09-18
- Certified
- 2024-09-18
Frequently asked questions
- What is Gregory Hieb's NPI number?
- Gregory Hieb's National Provider Identifier (NPI) is 1164498655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hieb's specialty?
- Gregory Hieb is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Hieb located?
- Gregory Hieb's practice location on file with NPPES is 1305 W 18th St, Sioux Falls, SD 57105-0401.
- What is Gregory Hieb's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hieb is (605) 333-1000.
- Does Gregory Hieb accept Medicare?
- Gregory Hieb is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Hieb's NPI active?
- Yes — Gregory Hieb's NPI (1164498655) is active in the NPPES registry as of the last update on 2024-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.