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SHERYL L. MARCKSTADT CNP
NPI 1487658837
Nurse Practitioner - Family in Sioux Falls, SD

Active since June 13, 2005PECOS Enrolled
5027 S BUR OAK PL, SIOUX FALLS, SD 57108(605) 271-9000(605) 271-9001 Get Directions Write a Review

NPPES record last updated: April 18, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Sheryl L. Marckstadt Cnp NPPES

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

SHERYL L. MARCKSTADT CNP (NPI 1487658837) is an individual family provider in Sioux Falls, South Dakota, licensed in South Dakota (0312) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1487658837
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameSHERYL L. MARCKSTADTCredential: CNP
Location Address5027 S BUR OAK PLSioux Falls, SD 57108-2228
Mailing Address5027 S Bur Oak PlSioux Falls, SD 57108-2228 · (605) 271-9000 · Fax (605) 271-9001
Phone(605) 271-9000
Fax(605) 271-9001
Sole ProprietorNo
Enumeration DateJune 13, 2005
Last NPPES UpdateApril 18, 2022
NPPES CertifiedApril 18, 2022
✔ NPI 1487658837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in SD · 0312
5027 S BUR OAK PL, Sioux Falls, SD 57108
Open in Google Maps ↗

Other Names 1

Former Name (1)Sheryl L. Mcmullin

Other Identifiers 1

Medicaid6822785SD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Avera Health Plans, Sanford Health Plan, Wellmark Health Plan of Iowa, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sheryl L. Marckstadt Cnp 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 Reassignment

Medicare enrollment records show Sheryl Marckstadt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Avera Mckennan
0.7 mi
Hematology & Oncology
3720 W 69TH ST
Sioux Falls, SD 57108
  • Reassigned Medicare billing, South Dakota enrollment
  • 1,277 clinicians in this Medicare group
NPI 1164780201 (605) 339-4464

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 57108 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 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SIOUX FALLS PRIMARY CARE SERVICES PC
Family Medicine
5027 S BUR OAK PL
SIOUX FALLS, SD 57108
Lincoln County (605) 271-7600
MEDICAL MANAGEMENT PARTNERS, INC.
Internal Medicine
5027 S BUR OAK PL
SIOUX FALLS, SD 57108
Lincoln County (605) 371-9000
MRS. ABIGAIL ANN GRAMLICK-MUELLER CNP
Nurse Practitioner (Family)
5027 S BUR OAK PL
SIOUX FALLS, SD 57108
Lincoln County (605) 271-9000
LUDOC ENTERPRISES LLC
Physical Medicine & Rehabilitation
5027 S BUR OAK PL
SIOUX FALLS, SD 57108
Lincoln County (605) 271-9000
JEFFREY L LUTHER MD
Physical Medicine & Rehabilitation
5027 S BUR OAK PL
SIOUX FALLS, SD 57108
Lincoln County (605) 271-9000

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 Sheryl Marckstadt's NPI number?

The NPI number for Sheryl Marckstadt is 1487658837. It was assigned to this individual provider in the NPPES registry on June 13, 2005. The provider is also known as Sheryl L. Mcmullin.

Where is Sheryl Marckstadt located?

Sheryl Marckstadt practices at 5027 S Bur Oak Pl, Sioux Falls, SD 57108. The listed phone number is (605) 271-9000.

What is Sheryl Marckstadt's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Sheryl Marckstadt enrolled in Medicare?

Yes. Sheryl Marckstadt is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sheryl Marckstadt's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sheryl Marckstadt reassigns Medicare benefits to Avera Mckennan (Sioux Falls, SD). The 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 Sheryl Marckstadt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sheryl Marckstadt accept?

Health plans from Avera Health Plans, Sanford Health Plan, Wellmark Health Plan of Iowa, Inc. and Wellmark of South Dakota, Inc. list Sheryl Marckstadt 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 Sheryl Marckstadt was last updated on April 18, 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.