Our Services

Our Adult Primary Care provides comprehensive healthcare for adults aged 18 and up. We focus on preventive screenings, managing chronic conditions, diagnosing and treating acute illnesses, and coordinating care with specialists to maintain optimal health.

We’re proud to offer customized HRT to support women through perimenopause, menopause, and beyond. Whether you're managing hot flashes, mood changes, or low energy, we are here to help you feel your best with care that fits your life.

We offer a comprehensive approach to weight loss, including access to brand name and compounded GLP-1 prescriptions.

Call today to schedule an appointment with Kirsten Oosterbaan, PA-C.

  • Monday - 8:00 am - 4:00 pm

    Tuesday - 8:00 am - 5:00 pm

    Wednesday - 8:00 am - 4:00 pm

    Thursday - Limited availability

    Friday - 8:00 am - 4:00 pm

  • Phone: (616)221-4302

    Fax: (616)232-2034

    Email: office@heartlandprimarycaremi.com

  • Heartland Primary Care PLLC

    123 E Cass St

    Greenville, MI 48838