Meet Our Team | Ona Clinic
Ona Health
Meet Your Care Team

Meet Our Experts and Practitioners

You deserve to feel believed, supported, and empowered. Our specialists combine clinical expertise with warm, women-centered care to help you move from confusion to clarity.

Our Experts

Advisors and specialists shaping the science behind our women's health care model.

Lara Briden, ND

Lara Briden, ND

Naturopathic Doctor & Bestselling Author

Member of the scientific advisory council for the Centre for Menstrual Cycle and Ovulation Research at UBC. Author of the Period Repair Manual and Hormone Repair Manual.

Jarek Oleszczuk, MD, PhD

Jarek Oleszczuk, MD, PhD

Healthcare Executive & Strategic Advisor

A physician and executive with leadership experience at global healthcare companies including AstraZeneca and Abbott, focused on bringing medical innovation to women's health.

Katarzyna Bednarska, MSc

Katarzyna Bednarska, MSc

Clinical Nutrition & Functional Medicine

Specialist with 10+ years of experience in hormone-related diagnosis and treatment, supporting women with sustainable nutrition and lifestyle plans.

Our Practitioners

Clinicians who meet you where you are and tailor care to your goals.

Jenna Blake

Jenna Blake

MSN, FNP-C

Women's Health & Functional Hormones

Family Nurse Practitioner and women's health coach who helps women feel seen and supported while rebalancing hormones and gut health with personalized care.

Hormone balance Women's health advocacy Gut health support Lipedema awareness
  • Certified Functional Hormone Specialist
  • Estima-Certified Women's Health Coach
  • Advanced training: DUTCH Test, GI-MAP, dysautonomia
Alexandra MacKillop

Alexandra MacKillop

DC

Functional Medicine

Functional medicine clinician specializing in women's health, hormone optimization, thyroid support, and digestive health with a whole-person, data-informed approach.

Women's health Hormone optimization Thyroid health Preconception & postpartum support Gut & digestive health
  • Doctor of Chiropractic Medicine, National University of Health Sciences
  • B.S. Food Science, Purdue University
  • Postgraduate training: functional blood chemistry, GI health, autoimmunity, endocrinology

Ready for care that sees the whole you?

Tell us what you're experiencing, and we'll match you with the right expert to guide your next step with clarity and compassion.