Cornerstone Clinic
410 Downtown Plz, Fairmont, MN, 56031
What we can verify
Each claim below is backed by a source we checked. Claims we couldn’t evidence are simply absent, which does not mean the clinic doesn’t offer them.
Weight management
confidence 0.90“Weight Loss Management”
Clinic website — www.cornerstone.clinic/services/treatments • checked 2026-09-17
Telehealth
confidence 0.90“She sees patients on a part-time basis and is also available for Telehealth visits throughout the week to provide greater flexibility and accessibility for her patients.”
Clinic website — www.cornerstone.clinic/providers/rebekah-boer • checked 2026-09-17
Accepting new patients
confidence 0.90“Clinician panel listed as open to new patients.”
DPC Frontier — mapper.dpcfrontier.com/practice/zdwqdwefhdmk • checked 2026-09-17
Primary care
confidence 0.90“We provide comprehensive acute, chronic, and preventive care to patients of all ages.”
Clinic website — www.cornerstone.clinic/ • checked 2026-09-17
Direct Primary Care
confidence 0.95“Listed as a hybrid direct primary care practice.”
DPC Frontier — mapper.dpcfrontier.com/practice/zdwqdwefhdmk • checked 2026-09-17
Clinicians
| Name | Specialty | Panel | NPI |
|---|---|---|---|
| Lisa Ertman, DNP, C-FNP, RN, PHN | Family Medicine | open | — |
| Nathan Reyelts, PA-C | Physician Assistant | open | 1932183084NPI record verified |
| Rebekah Boer, RN, MSN, C-FNP | Family Medicine | open | — |
| Samantha Farnum, RN, MSN, C-FNP | Family Medicine | open | — |
An NPI is a registry identifier. Per NPPES, holding one does not establish that a provider is licensed or credentialed. Verify licensure with the relevant state medical or nursing board.
More in Minnesota
Listing checked September 17, 2026. How we verify listings
GLP-1 Care Map lists providers and patient-reported information. It is not medical advice and does not recommend any provider or treatment. We do not verify licensure, and services and prices change: confirm details with the provider before you book.