IndividualActive
Justin Kastl, M.D.
NPI 1588873335 · Pediatric Nephrology Physician · Sioux Falls, SD
Provider details
- NPI number
- 1588873335
- Entity type
- Individual
- Primary specialty
- Pediatric Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R-7820 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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
1600 W 22nd St
Sioux Falls, SD 57105-1521
Phone: (605) 312-1000
Fax: (605) 312-1001
Street-level locationGet directions
Mailing address
Po Box 5074
Sioux Falls, SD 57117-5074
Registry dates
- Enumerated
- 2007-05-21
- Last updated
- 2025-05-22
- Certified
- 2025-05-22
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.