Registry data as of Aug 27, 2026

Justin Kastl, M.D.

Pediatrics Physician · Sioux Falls, SD

Justin Kastl, M.D. is a pediatrics physician with a practice address in Sioux Falls, South Dakota, and NPI 1588873335, issued on May 21, 2007. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1588873335
Name
Justin Kastl
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
Practice location
1600 W 22ND St, Sioux Falls, SD 57105
Phone
(605) 312-1000
Enumerated
May 21, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1600 W 22ND St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohamad Abou Merhi Saifeddine, MDStudent in an Organized Health Care Education/Training Program1588049084
  2. Michelle Ahnberg, DNP, CNSPediatric Clinical Nurse Specialist1457914046
  3. Moises Alatorre Jimenez, MDStudent in an Organized Health Care Education/Training Program1205324530
  4. Mir Ali, MDPediatric Critical Care Medicine Physician1841454634
  5. Farah AlmudallalStudent in an Organized Health Care Education/Training Program1104745165
  6. Kathryn Anderson, M.D.Student in an Organized Health Care Education/Training Program1487099289

Verify Justin Kastl in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic ExaminersCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the South Dakota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

The practice group's Medicare quality score for 2023: 76.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.6
  2. Costout of 100 · 30%44.6
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

94 pediatrics physician records list a Sioux Falls practice address

They are 94 of the 6,563 NPPES records with a Sioux Falls practice address, and 161 pediatrics physician records in South Dakota.

Other pediatrics physician records in South Dakota

  1. Marty Allison, MDPierre, SD1013981927
  2. Mohammad AlzoubaidiSioux Falls, SD1841923505
  3. Angela Anderson, MDSpearfish, SD1235173659
  4. Gregory Anderson, D.O.Rapid City, SD1225016777
  5. Sara AndersonSioux Falls, SD1851912281
  6. Stellar Anonye Achampong, MDSisseton, SD1710023940
  7. Christine Arnold, MDMitchell, SD1487620894
  8. Michelle Baack, MDSioux Falls, SD1316911266
  9. Courtney Backer, M.D.Sioux Falls, SD1356723308
  10. David Basel, MDHarrisburg, SD1669451340

Common questions

What is Justin Kastl, M.D.'s NPI number?

Justin Kastl, M.D.'s National Provider Identifier (NPI) is 1588873335, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Justin Kastl, M.D. located?

The NPPES record lists a practice address at 1600 W 22ND St, Sioux Falls, SD, 57105. Phone: (605) 312-1000. Providers update this record themselves, so call before visiting.

How can I verify Justin Kastl, M.D.'s license?

Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Justin Kastl, M.D.'s Medicare quality score?

The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.