JUSTIN T. KASTL M.D.
NPI 1588873335
Pediatrics - Pediatric Nephrology in Sioux Falls, SD

Active since May 21, 2007PECOS EnrolledAccepts Medicare Assignment
76.69/100
CMS Quality Rating
1600 W 22ND ST, SIOUX FALLS, SD 57105(605) 312-1000(605) 312-1001 Get Directions Write a Review

NPPES record last updated: May 22, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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

NPI1588873335
Entity TypeIndividualMale
Primary Taxonomy2080P0210X
Provider Legal NameJUSTIN T. KASTLCredential: M.D.
Location Address1600 W 22ND STSioux Falls, SD 57105-1521
Mailing AddressPo Box 5074Sioux Falls, SD 57117-5074 · (605) 328-6585 · Fax (605) 328-6512
Fax(605) 312-1001
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 2009
Enumeration DateMay 21, 2007
Last NPPES UpdateMay 22, 2025
NPPES CertifiedMay 22, 2025
✔ NPI 1588873335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0210X
License✔ Licensed in SD · 8921
Definition
A pediatrician who deals with the normal and abnormal development and maturation of the kidney and urinary tract, the mechanisms by which the kidney can be damaged, the evaluation and treatment of renal diseases, fluid and electrolyte abnormalities, hypertension and renal replacement therapy.
Also ListedPediatricsTaxonomy 208000000X · License R-7820 (IA), 8921 (SD)
1600 W 22ND ST, Sioux Falls, SD 57105

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.

PECOS PAC ID7113165317
PECOS Enrollment IDI20130910000153
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare 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.

Same address
Pediatrics
1600 W 22ND ST
Sioux Falls, SD 57105
  • Reassigned Medicare billing, South Dakota enrollment
  • 826 clinicians in this Medicare group
Family Medicine
1420 W 22NDST STE 104
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.

76.69/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality78.56
Promoting Interoperability99
Improvement Activities40
Cost44.56

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.

Nurse Practitioner
1600 W 22ND ST
SIOUX FALLS, SD 57105
Registered Nurse (Pediatrics)
1600 W 22ND ST
SIOUX FALLS, SD 57105
Nurse Practitioner (Psychiatric/Mental Health)
1600 W 22ND ST
SIOUX FALLS, SD 57105
Pediatrics (Pediatric Hematology-Oncology)
1600 W 22ND ST
SIOUX FALLS, SD 57105
Pediatrics
1600 W 22ND ST
SIOUX FALLS, SD 57105
Pediatrics
1600 W 22ND ST
SIOUX FALLS, SD 57105
Registered Nurse (Diabetes Educator)
1600 W 22ND ST
SIOUX FALLS, SD 57105
Physician Assistant
1600 W 22ND ST
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.