MRS. KATIE ELIZABETH LARSON MD
NPI 1043576853
Pediatrics in Sioux Falls, SD

Active since April 05, 2012PECOS Enrolled
1205 S GRANGE AVE, SUITE 307, SIOUX FALLS, SD 57105(605) 328-7800(605) 328-7899 Get Directions Write a Review

NPPES record last updated: April 29, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 29, 2022, Feb 13, 2017, Jan 5, 2017 (3 updates tracked since 2017).

About Mrs. Katie Elizabeth Larson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. KATIE ELIZABETH LARSON MD (NPI 1043576853) is an individual pediatrics provider in Sioux Falls, South Dakota, licensed in South Dakota (0040) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043576853
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMRS. KATIE ELIZABETH LARSONCredential: MD
Location Address1205 S GRANGE AVE, SUITE 307Sioux Falls, SD 57105-0407
Mailing Address77 N Harmon DrMitchell, SD 57301-6242 · (605) 670-9305 · Fax (605) 996-3385
Fax(605) 328-7899
Sole ProprietorNo
Enumeration DateApril 5, 2012
Last NPPES UpdateApril 29, 20223 updates tracked since enumeration
NPPES CertifiedApril 29, 2022
✔ NPI 1043576853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in SD · 0040
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1205 S GRANGE AVE, 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 (PECOS)

Mrs. Katie Elizabeth Larson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Katie Larson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Nephrology
1205 S. GRANGE AVE, STE 201
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 57105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.21 typical visit price
range $55.52 – $167.23
Typical copayment $21.30 (range $13.88 – $41.80)
Most-billed visit code 99203
Established Patient
$97.88 typical visit price
range $18.08 – $137.08
Typical copayment $24.47 (range $4.52 – $34.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 (Family)
1205 S GRANGE AVE
SIOUX FALLS, SD 57105
Pediatrics
1205 S GRANGE AVE, STE 307
SIOUX FALLS, SD 57105
Internal Medicine (Nephrology)
1205 S GRANGE AVE, SUITE 201
SIOUX FALLS, SD 57105
Social Worker
1205 S GRANGE AVE, SUITE 510
SIOUX FALLS, SD 57105
Internal Medicine (Nephrology)
1205 S GRANGE AVE, SUITE 201
SIOUX FALLS, SD 57105
Internal Medicine
1205 S GRANGE AVE, STE 510
SIOUX FALLS, SD 57105
Internal Medicine (Pulmonary Disease)
1205 S GRANGE AVE, STE 407
SIOUX FALLS, SD 57105
Internal Medicine
1205 S GRANGE AVE, STE 510
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 Katie Larson's NPI number?

The NPI number for Katie Larson is 1043576853. It was assigned to this individual provider in the NPPES registry on April 5, 2012.

Where is Katie Larson located?

Katie Larson practices at 1205 S Grange Ave Suite 307, Sioux Falls, SD 57105. The listed phone number is (605) 328-7800.

What is Katie Larson's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Katie Larson enrolled in Medicare?

Yes. Katie Larson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Katie Larson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katie Larson 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 Katie Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katie Larson accept?

Health plans from Sanford Health Plan, Security Health Plan, Wellmark Health Plan of Iowa, Inc. and Wellmark of South Dakota, Inc. list Katie Larson 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 Katie Larson was last updated on April 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.