Erin Duff, N.P.
Family Nurse Practitioner · Knox, IN
Erin Duff, N.P. is a family nurse practitioner with a practice address in Knox, Indiana, and NPI 1629329867, issued on Sep 27, 2012. Check the license (Indiana 71004187A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Duff
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 71004187A IN
28172170A IN
Self-reported in NPPES; status is on the state search - Practice location
- 104 E Culver RD Ste 102, Knox, IN 46534
- Phone
- (574) 772-7918
- Enumerated
- Sep 27, 2012
- Record last updated
- Dec 14, 2022
- Fax
- (574) 772-0894
- Medicaid ID
- 201116160 IN
- Medicare enrollment
- Enrolled (PECOS I20121102000127); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,867 in Indiana → Look up another NPI →
Also registered at 104 E Culver RD Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiffany Bowser, NP-CFamily Nurse Practitioner1427645597
- Thomas Browne, M.D.Family Medicine Physician1548277288
- Jennifer Frasure, FNPFamily Nurse Practitioner1134213168
- Autumn Kirk, FNPFamily Nurse Practitioner1912482936
- Joos MoerlandFamily Nurse Practitioner1710638432
- Sandra Ringer, MSW, LCSWClinical Social Worker1023269040
Verify Erin Duff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 71004187ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,957 Medicare Part D claims for 365 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium296 claims
- Ezetimibe246 claims
- Metoprolol Succinate235 claims
- Losartan Potassium175 claims
- Amlodipine Besylate149 claims
- Clopidogrel134 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 MIPS final score for 2023 (Medicare payment program): 88 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $227.10
11 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
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
- LA Porte Clinic Company LLCKnox, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Duff among 5,867 family nurse practitioner records in Indiana
Erin Duff, N.P. is one of 5,867 family nurse practitioner records with a practice address in Indiana. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 19% of them.
- NPI issued2012 · 19% of these records are older, 78% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 2018 among the 3,953 with a school on file
- Record last updated2022 · 33% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 family nurse practitioner records list a practice address in Knox
They are 11 of the 50 NPPES records with a practice address in Knox, and 5,867 family nurse practitioner records in Indiana.
All 5,867 in Indiana → Every provider in Knox → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Renae Atkins, FNPKnox, IN 465341700122579
- Tiffany Bowser, NP-CKnox, IN 465341427645597
- Brooke Butler, FNPKnox, IN 465341114385879
- Nikkole Chambers, FPNKnox, IN 465341831522085
- Jennifer Frasure, FNPKnox, IN 465341134213168
- Amber Howard, FNPKnox, IN 465341790509065
- Autumn Kirk, FNPKnox, IN 465341912482936
- Lesley Metts, MSN, FNPKnox, IN 465341205509726
Common questions
What is Erin Duff, N.P.'s NPI number?
Erin Duff, N.P.'s National Provider Identifier (NPI) is 1629329867, issued on Sep 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Erin Duff, N.P. located?
The NPPES record lists a practice address at 104 E Culver RD Ste 102, Knox, IN, 46534. Phone: (574) 772-7918. Providers update this record themselves, so call before visiting.
How can I verify Erin Duff, N.P.'s license?
NPPES lists Indiana license number 71004187A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Erin Duff, N.P. prescribe under Medicare Part D?
In 2024, Erin Duff, N.P. had 2,957 Medicare Part D claims for 365 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Erin Duff, N.P.'s MIPS final score?
The 2023 MIPS final score is 88 of 100. 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.