Sydney Clausen
NPI 1164101978 · Certified Registered Nurse Anesthetist · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sydney Clausen is a Certified Registered Nurse Anesthetist provider in Sioux Falls, SD (NPI 1164101978).
Provider details
- NPI number
- 1164101978
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- CR001145 (SD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 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
14 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 | 14 | $67 |
Typical Medicare-allowed amounts for these services range $67–$67 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-07-18
- Last updated
- 2023-09-14
- Certified
- 2023-09-14
Frequently asked questions
- What is Sydney Clausen's NPI number?
- Sydney Clausen's National Provider Identifier (NPI) is 1164101978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Clausen's specialty?
- Sydney Clausen is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sydney Clausen located?
- Sydney Clausen's practice location on file with NPPES is 1305 W 18th St, Sioux Falls, SD 57105-0401.
- What is Sydney Clausen's phone number?
- The practice phone number listed in the NPPES registry for Sydney Clausen is (605) 333-1000.
- Does Sydney Clausen accept Medicare?
- Sydney Clausen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sydney Clausen's NPI active?
- Yes — Sydney Clausen's NPI (1164101978) is active in the NPPES registry as of the last update on 2023-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.