NPPES file of Aug 9, 2026

Whitney Mariner, FNP-BC

Family Nurse Practitioner · Bismarck, ND

Whitney Mariner, FNP-BC is a family nurse practitioner with a practice address in Bismarck, North Dakota, and NPI 1285149633, issued on Dec 7, 2017. Check the license (North Dakota R38937, as entered in NPPES) with the North 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285149633
Name
Whitney Mariner
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
R38937 ND
Self-reported in NPPES; status is on the state search
Practice location
222 N 7TH St, Bismarck, ND 58501
Phone
(701) 323-5202
Enumerated
Dec 7, 2017
Record last updated
Dec 7, 2017 (not updated in 9 years: call before relying on the address or phone)
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 222 N 7TH St

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

  1. David Affleck, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1710979653
  2. Udit AgarwalCardiovascular Disease Physician1568753606
  3. Samuel Aguhob, MDAnesthesiology Physician1093709065
  4. Nameer Al-YousifPulmonary Disease Physician1780147520
  5. Tanner Anderson, MDDiagnostic Radiology Physician1689108573
  6. Cynthia Anderst, LRDRegistered Dietitian1336237056

Verify Whitney Mariner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich North Dakota board licenses this profession
    Search for license R38937
    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 North Dakota license search

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43% fewer Medicare Part D claims than the average family nurse practitioner in 2024

746 Medicare Part D claims for 163 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Whitney Mariner746
  2. Specialty average1,305

Most prescribed

  1. Torsemide135 claims
  2. Bumetanide69 claims
  3. Furosemide67 claims
  4. Potassium Chloride61 claims
  5. Spironolactone55 claims
  6. Metoprolol Succinate49 claims

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 84 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 score79.3
  2. Costout of 100 · 30%68.2
  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).

Industry payments in 2024: $121.40

6 payments; by number, the most common kind was food and beverage; the largest payer was Galderma Laboratories, L.P. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Whitney Mariner$121.40
  2. Specialty average$650.95

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

Whitney Mariner among 757 family nurse practitioner records in North Dakota

Whitney Mariner, FNP-BC is one of 757 family nurse practitioner records with a practice address in North Dakota. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 40% of them.

  • NPI issued2017 · 40% of these records are older, 55% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2017 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

129 family nurse practitioner records list a practice address in Bismarck

They are 129 of the 3,669 NPPES records with a practice address in Bismarck, and 757 family nurse practitioner records in North Dakota.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kristin Braun, FNPBismarck, ND 585011134210214
  2. Jennifer Bryan, FNPBismarck, ND 585011417981713
  3. Jane Christianson, FNPBismarck, ND 585011689699001
  4. Tanya Guthmiller, FNPBismarck, ND 585011740333616
  5. Heather Jacobson-Bauer, NPBismarck, ND 585011447303334
  6. Heather Leier, FNP-CBismarck, ND 585011225057417
  7. Michelle Maier, NPBismarck, ND 585011831243005
  8. Elizabeth Perius, FNP-BC, PHDBismarck, ND 585011487706081

Common questions

What is Whitney Mariner, FNP-BC's NPI number?

Whitney Mariner, FNP-BC's National Provider Identifier (NPI) is 1285149633, issued on Dec 7, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Whitney Mariner, FNP-BC located?

The NPPES record lists a practice address at 222 N 7TH St, Bismarck, ND, 58501. Phone: (701) 323-5202. Providers update this record themselves, so call before visiting.

How can I verify Whitney Mariner, FNP-BC's license?

NPPES lists North Dakota license number R38937, as entered by the provider. Search the North Dakota board that licenses this profession; the NPPES record confirms identity only.

How much does Whitney Mariner, FNP-BC prescribe under Medicare Part D?

In 2024, Whitney Mariner, FNP-BC had 746 Medicare Part D claims for 163 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Whitney Mariner, FNP-BC's MIPS final score?

The 2023 MIPS final score is 84 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), 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.