NPPES file of Aug 9, 2026

Maren Patricia Ernst, CNP

Nurse Practitioner · Sioux Falls, SD

Maren Patricia Ernst, CNP is a nurse practitioner with a practice address in Sioux Falls, South Dakota, and NPI 1831800697, issued on Dec 12, 2022. Check the license (South Dakota CP002610, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831800697
Name
Maren Patricia Ernst
Credential
CNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
CP002610 SD
Self-reported in NPPES; status is on the state search
Practice location
1325 S Cliff Ave RM 3515, Sioux Falls, SD 57105
Phone
(605) 322-6593
Enumerated
Dec 12, 2022
Record last updated
Dec 12, 2022
Medicare enrollment
Enrolled (PECOS I20230127001316); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Maren Patricia Ernst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
    Search for license CP002610
    Check 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
Find 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.

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94% fewer Medicare Part D claims than the average nurse practitioner in 2024

66 Medicare Part D claims for 37 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Maren Ernst66
  2. Specialty average1,109

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $56.90

2 payments; by number, the most common kind was food and beverage; the largest payer was Adc Therapeutics America, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maren Ernst$56.90
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Avera MckennanSioux Falls, SD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maren Patricia Ernst among 465 nurse practitioner records in South Dakota

Maren Patricia Ernst, CNP is one of 465 nurse practitioner records with a practice address in South Dakota. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.

  • NPI issued2022 · 78% of these records are older, 16% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2022 · median 2018 among the 331 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

239 nurse practitioner records list a practice address in Sioux Falls

They are 239 of the 6,563 NPPES records with a practice address in Sioux Falls, and 465 nurse practitioner records in South Dakota.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Suzanne Bakken, NPSioux Falls, SD 571051558309211
  2. Denise Boraas, CNPSioux Falls, SD 571051750396560
  3. Donna Dickey, CNPSioxu Falls, SD 571051558317628
  4. Lisa Duncan, CNPSioux Falls, SD 571051285600965
  5. Julie Elson, CNPSioux Falls, SD 571051306842034
  6. Nancy Foss, CNPSioux Falls, SD 571051932105590
  7. Melinda Frost, CNPSioux Falls, SD 571051144296930
  8. Karen Hanisch, FNPSioux Falls, SD 571051881647774

Common questions

What is Maren Patricia Ernst, CNP's NPI number?

Maren Patricia Ernst, CNP's National Provider Identifier (NPI) is 1831800697, issued on Dec 12, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Maren Patricia Ernst, CNP located?

The NPPES record lists a practice address at 1325 S Cliff Ave RM 3515, Sioux Falls, SD, 57105. Phone: (605) 322-6593. Providers update this record themselves, so call before visiting.

How can I verify Maren Patricia Ernst, CNP's license?

NPPES lists South Dakota license number CP002610, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does Maren Patricia Ernst, CNP prescribe under Medicare Part D?

In 2024, Maren Patricia Ernst, CNP had 66 Medicare Part D claims for 37 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.