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DONALD J KOSIAK JR. MD
NPI 1073541215
Emergency Medicine in Sioux Falls, SD

Active since June 28, 2006PECOS Enrolled
800 E 21ST ST, EMERGENCY DEPT, SIOUX FALLS, SD 57105(605) 322-2000(605) 322-2036 Get Directions Write a Review

NPPES record last updated: August 1, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Donald J Kosiak Jr. Md NPPES

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

DONALD J KOSIAK JR. MD (NPI 1073541215) is an individual emergency medicine provider in Sioux Falls, South Dakota, licensed in South Dakota (5446) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073541215
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDONALD J KOSIAK JR.Credential: MD
Location Address800 E 21ST ST, EMERGENCY DEPTSioux Falls, SD 57105-1016
Mailing Address800 E 21st St, Emergency DeptSioux Falls, SD 57105-1016 · (605) 322-2000 · Fax (605) 322-2036
Phone(605) 322-2000
Fax(605) 322-2036
Sole ProprietorNo
Enumeration DateJune 28, 2006
Last NPPES UpdateAugust 1, 2007
✔ NPI 1073541215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in SD · 5446
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
800 E 21ST ST, Sioux Falls, SD 57105
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Other Identifiers 9

Medicaid1557298IA
Other0042211SD · Wellmark Sd Bc
Other460224743-57105-AF04SD · Tricare
Other492T3KOMN · Mn Blue Cross
Medicare UPINH66630
Medicaid460224743-31NE
Other9223504SD · Dakotacare
OtherP00199220SD · Railroad Medicare
Medicare PIN42211SD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Donald J Kosiak Jr. 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.

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.

JOHN A LYLE CRNA
Nurse Anesthetist, Certified Registered
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-2754
NINA KAPPES RDLN
Dietitian, Registered
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-8775
STARR LYNN RAUCH CRNA
Nurse Anesthetist, Certified Registered
800 E 21ST ST, AVERA MCKENNAN ANESTHESIOLOGY
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-2754
MRS. RUTH ELAINE FAWCETT PT
Physical Therapist
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5000
JON C WEBER CRNA
Nurse Anesthetist, Certified Registered
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-2754
STEPHAN KULZER
Occupational Therapist (Hand)
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-5000
KARA J DOUGHERTY CRNA
Nurse Anesthetist, Certified Registered
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-2754
RANDY L DOWNEY CRNA
Nurse Anesthetist, Certified Registered
800 E 21ST ST
SIOUX FALLS, SD 57105
Minnehaha County (605) 322-2754

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 Donald Kosiak's NPI number?

The NPI number for Donald Kosiak is 1073541215. It was assigned to this individual provider in the NPPES registry on June 28, 2006.

Where is Donald Kosiak located?

Donald Kosiak practices at 800 E 21st St Emergency Dept, Sioux Falls, SD 57105. The listed phone number is (605) 322-2000.

What is Donald Kosiak's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Donald Kosiak enrolled in Medicare?

Yes. Donald Kosiak is registered in the Medicare PECOS enrollment system.

What insurance does Donald Kosiak accept?

Health plans from Medica list Donald Kosiak 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 Donald Kosiak was last updated on August 1, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.