Barbara Schlager, MD
NPI 1134206949 · Radiation Oncology Physician · Sioux Falls, SD
Barbara Schlager, MD is a Radiation Oncology Physician provider in Sioux Falls, SD (NPI 1134206949).
Provider details
- NPI number
- 1134206949
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD036090L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2018-10-16
Frequently asked questions
- What is Barbara Schlager's NPI number?
- Barbara Schlager's National Provider Identifier (NPI) is 1134206949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Schlager's specialty?
- Barbara Schlager is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Schlager located?
- Barbara Schlager's practice location on file with NPPES is 1000 E 23rd St, Sioux Falls, SD 57105-2114.
- What is Barbara Schlager's phone number?
- The practice phone number listed in the NPPES registry for Barbara Schlager is (605) 322-1625.
- Is Barbara Schlager's NPI active?
- Yes — Barbara Schlager's NPI (1134206949) is active in the NPPES registry as of the last update on 2018-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.