Meet the Team
Jamie Keig, MSN, FNP-c
Jamie is a Family Nurse Practitioner licensed in Oregon, Washington, and California, offering personalized primary care, urgent care, and mental health services. With over 20 years of healthcare experience, she focuses on root-cause medicine, preventive care, and long-term wellness optimization.
Known for her thorough, patient-centered approach, Jamie provides comprehensive care including family medicine, mental health medication management, and integrative health solutions to help patients feel their best.
Gretchen Blank, CNA
Gretchen is a compassionate Certified Nursing Assistant providing attentive, patient-centered care. Certified in CPR and Basic Life Support, she supports daily patient needs while creating a calm, comfortable clinical experience.
Known for her warmth and strong communication, Gretchen helps patients feel supported, respected, and at ease during every visit.
Da’Janee Challis, CNA, MA
Da’Janee is a compassionate CNA and MA with over seven years of experience in clinical and hospital settings. She provides attentive, patient-centered care while supporting a smooth and comfortable patient experience.
Known for her warmth and attention to detail, Da’Janee helps patients feel supported, respected, and at ease during every visit.
Sharon Karstadt, RN
Sharon is a holistic nurse coach at Oswego Medical Clinic with over 20 years of healthcare experience. She blends her background in clinical nursing—including dialysis and complex patient care—with lifestyle medicine and transformative coaching to support whole-person wellness.
Sharon specializes in stress management, mindfulness, and sustainable lifestyle changes, helping patients restore balance, improve health, and feel their best. Known for her compassionate and uplifting approach, she empowers patients to take an active role in their healing journey.
Alex Migdol, CNS
Alex is a functional nutritionist that focuses on a root-cause approach to health and wellness, addressing the underlying imbalances that impact how you feel day to day. Rather than masking symptoms, Alex works to identify and correct the drivers of dysfunction through personalized nutrition and lifestyle strategies.
With a focus on gut health, hormone balance, chronic inflammation, and energy optimization, Alex helps patients restore balance, improve vitality, and achieve sustainable, long-term results. His approach is thoughtful, individualized, and designed to support whole-body wellness from the inside out.