JUSTIN T. KASTL M.D.
NPI 1588873335
Pediatrics - Pediatric Nephrology in Sioux Falls, SD
About Justin T. Kastl M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN T. KASTL M.D. (NPI 1588873335) is an individual pediatric nephrology provider in Sioux Falls, South Dakota, licensed in South Dakota (8921) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2009).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Justin T. Kastl M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Justin Kastl reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sioux Falls, SD 57105
- Reassigned Medicare billing, South Dakota enrollment
- 826 clinicians in this Medicare group
Sioux Falls, SD 57105
- Reassigned Medicare billing, South Dakota enrollment
- 1,097 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SIOUX FALLS, SD 57105
SIOUX FALLS, SD 57105
SIOUX FALLS, SD 57105
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Justin Kastl's NPI number?
The NPI number for Justin Kastl is 1588873335. It was assigned to this individual provider in the NPPES registry on May 21, 2007.
Where is Justin Kastl located?
Justin Kastl practices at 1600 W 22nd St, Sioux Falls, SD 57105. The listed phone number is (605) 312-1000.
What is Justin Kastl's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.
Is Justin Kastl enrolled in Medicare?
Yes. Justin Kastl is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Justin Kastl's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Kastl reassigns Medicare benefits to 2 organizations: Sanford Clinic (Sioux Falls, SD) and Sanford Medical Center (Sioux Falls, SD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Justin Kastl's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Kastl accept?
Health plans from Sanford Health Plan, Security Health Plan, Wellmark Health Plan of Iowa, Inc. and Wellmark of South Dakota, Inc. list Justin Kastl as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Justin Kastl was last updated on May 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.