Concierge Family Medicine nurse practitioner, Fairmont, MN
Cornerstone ClinicLisa Ertman is a family nurse practitioner with a Doctor of Nursing Practice degree who practices at Cornerstone Clinic in Fairmont, Minnesota.
Facts on this page last checked October 2026. How we check doctors
Cornerstone Clinic accepts plans including Aetna, Aplos Health Plans and Blue Cross Blue Shield, and has a flat monthly fee direct primary care option.
The direct primary care option includes same-day or next-day appointments, $0 copays and direct access to the doctor by phone, email or telehealth.
Cornerstone Clinic accepts plans including Aetna, Aplos Health Plans and Blue Cross Blue Shield, and has a flat monthly fee direct primary care option.
Lisa Ertman is a nurse practitioner, not a physician.
Lisa Ertman practices at Cornerstone Clinic in Fairmont, Minnesota.
Lisa Ertman earned a Doctor of Nursing Practice degree.
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Offered by FindMyDirectDoctor through licensed clinicians, separate from this practice. A clinician decides if treatment is appropriate.
Cornerstone Clinic
Coming soon: Microdosing Programs, Men's Hormone Health & TRT, Menopause & Women's Hormone Health
Offered by FindMyDirectDoctor through licensed clinicians, separate from this practice. Coming soon: Microdosing Programs, Men's Hormone Health & TRT, Menopause & Women's Hormone Health.
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