Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Erin Duff, NP

Individual provider Nurse Practitioner · NPI 1629329867

Erin Duff, NP is a Nurse Practitioner in Knox, Indiana. Qualified in 2012, 14 years ago. Practices with La Porte Clinic Company LLC, a 66-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
14
Licensed in
IN
In the registry since
2012
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

104 E Culver Rd Ste 102
Knox, IN 46534-2241
Phone: (574) 772-7918
Fax: (574) 772-0894
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1919 Lake Ave Ste 102, Plymouth, IN 46563-7830 — (574) 948-5070
  • 2855 Miller Dr Ste 119, Plymouth, IN 46563-8091 — (574) 941-1000

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 71004187A (IN)
Nurse Practitioner Taxonomy 363L00000X · Licence 28172170A (IN)

Record details

NPI number1629329867
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedSeptember 27, 2012
Last updated in NPPESDecember 14, 2022
Certification dateDecember 14, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice La Porte Clinic Company Llc — 66 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients241
Services billed 917 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $216 13 payments · a meal or drink at a meeting or visit, not a fee
Entertainment $49 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at La Porte Clinic Company LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 66 clinicians in the practice; 12 are shown here.

Other providers in Knox