NPPES file of Aug 9, 2026

Stephanie B. Duff, NP

Family Nurse Practitioner · Twin Falls, ID

Stephanie B. Duff, NP is a family nurse practitioner with a practice address in Twin Falls, Idaho, and NPI 1851076251, issued on Jun 21, 2023. Check the license (Idaho 42466, as entered in NPPES) with the Idaho 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
1851076251
Name
Stephanie B. Duff
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
42466 ID
Self-reported in NPPES; status is on the state search
Practice location
2550 Addison Ave E, Twin Falls, ID 83301
Phone
(208) 814-8000
Enumerated
Jun 21, 2023
Record last updated
Oct 16, 2023
Fax
(208) 933-9301
Medicare enrollment
Enrolled (PECOS I20231026003887); 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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Also registered at 2550 Addison Ave E

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

  1. Nathan Allen, D.O.Family Medicine Physician1881908366
  2. Esmeralda BerrueteSpeech-Language Pathologist1194269795
  3. Patricia Billings, CPNPNurse Practitioner1235173493
  4. Deidre Colvin, LMSWSocial Worker1235070509
  5. Lucie Dimaggio, M.D.Internal Medicine Physician1336188267
  6. Cameron Dodd, PA-CPhysician Assistant1962130963

Verify Stephanie B. Duff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Idaho board licenses this profession
    Search for license 42466
    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 Idaho 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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33% fewer Medicare Part D claims than the average family nurse practitioner in 2024

868 Medicare Part D claims for 349 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Stephanie Duff868
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass33 claims
  2. Tizanidine Hcl31 claims
  3. Pantoprazole Sodium30 claims
  4. Albuterol Sulfate Hfa27 claims
  5. Amlodipine Besylate24 claims
  6. Levothyroxine Sodium22 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.

Bills Medicare through one group practice

  1. St Lukes Clinic LLCTwin Falls, ID

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

Stephanie B. Duff among 1,215 family nurse practitioner records in Idaho

Stephanie B. Duff, NP is one of 1,215 family nurse practitioner records with a practice address in Idaho. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 78% of them.

  • NPI issued2023 · 78% of these records are older, 15% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2019 among the 762 with a school on file
  • Record last updated2023 · 39% 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 Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

80 family nurse practitioner records list a practice address in Twin Falls

They are 80 of the 1,660 NPPES records with a practice address in Twin Falls, and 1,215 family nurse practitioner records in Idaho.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Samuel Barker, D.C., NP-CTwin Falls, ID 833011043301682
  2. Corinne Bartschi, FNPTwin Falls, ID 833011063681054
  3. Beverley Blake Odoherty, CFNPTwin Falls, ID 833011821166539
  4. Kathryn Devaney, FNP-C, PMHNP-BCTwin Falls, ID 833011285672378
  5. Taryna Goodman, NPTwin Falls, ID 833011104928878
  6. Beverly LammersTwin Falls, ID 833011255743332
  7. Roanne Mancari, FNP-CTwin Falls, ID 833011922329416
  8. Michael Perrin, NPTwin Falls, ID 833011184979783

Common questions

What is Stephanie B. Duff, NP's NPI number?

Stephanie B. Duff, NP's National Provider Identifier (NPI) is 1851076251, issued on Jun 21, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie B. Duff, NP located?

The NPPES record lists a practice address at 2550 Addison Ave E, Twin Falls, ID, 83301. Phone: (208) 814-8000. Providers update this record themselves, so call before visiting.

How can I verify Stephanie B. Duff, NP's license?

NPPES lists Idaho license number 42466, as entered by the provider. Search the Idaho board that licenses this profession; the NPPES record confirms identity only.

How much does Stephanie B. Duff, NP prescribe under Medicare Part D?

In 2024, Stephanie B. Duff, NP had 868 Medicare Part D claims for 349 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.