Lake Oswego Hormone and longevity doctors
Welcome to Radiance Natural Medicine's Lake Oswego clinic, where cutting-edge naturopathic care meets personalized wellness. Our team is dedicated to helping you optimize your hormones, achieve your health goals, and feel like yourself again.
Our Lake Oswego Team
Dr. Rachel Kelly, ND
Dr. Rachel Kelly is a board-certified naturopathic physician passionate about helping patients reclaim their vitality through comprehensive, individualized care. With expertise in hormone optimization, medical weight loss, and functional medicine, Dr. Kelly specializes in HRT, peptide therapy, GLP-1 medications, and metabolic wellness to help you feel like yourself again and achieve your health goals.
Dr. Kelly's philosophy is simple yet powerful: optimal hormones, healthy body composition, and mobile, pain-free joints are the trifecta for thriving in life. This holistic vision led her to dedicate her post-graduate career to mastering orthopedics, sports medicine, and regenerative therapies, because she believes that without healthy joints, it's impossible to maintain longevity and movement as we age.
As a specialist in musculoskeletal medicine, Dr. Kelly has become the go-to expert for patients struggling with chronic pain, sports injuries, and joint conditions. She excels at identifying the root cause of your pain and creating comprehensive treatment plans that deliver real, lasting results. Often helping patients avoid surgery altogether. With extensive advanced training in ultrasound diagnostics and ultrasound-guided injections, Dr. Kelly combines precision imaging with cutting-edge regenerative medicine techniques including PRP (Platelet-Rich Plasma) therapy and prolotherapy to promote natural healing and tissue repair.
Dr. Kelly doesn't just treat symptoms, she partners with you to build a complete foundation of physical wellness that supports an active, vibrant lifestyle at any age. Whether you're seeking hormone balance, weight loss support, relief from joint pain, or simply want to move through life with greater ease and vitality, Dr. Kelly brings both the expertise and the genuine passion to help you thrive.
Dr. Heather Pendell, ND
Dr. Heather Pendell is a board-certified naturopathic physician who has transformed countless lives through her deep expertise in hormone therapy, regenerative medicine, and age optimization. After graduating from naturopathic medical school, Dr. Pendell completed a rigorous 4-year primary care residency, followed by an additional 4 years of specialized training in hormone optimization, making her one of the most extensively trained hormone specialists in the region.
Known for her thorough approach and warm demeanor, Dr. Pendell is often described by patients as "the first doctor to take my concerns seriously." She has built her practice on a foundation of truly listening to patients and creating highly individualized treatment protocols that address the root causes of hormonal imbalances. Her patients consistently report life-changing improvements in sleep, energy, mental clarity, and overall quality of life under her care.
Dr. Pendell's passion lies in helping patients stay youthful and vibrant throughout the aging process. She is an expert in bioidentical hormone replacement therapy, perimenopause and menopause care, thyroid optimization, and regenerative medicine. What truly sets her apart is her love of a finding the exact right combination of individualized treatments tailored to each patient's unique needs and goals.
In 2024, Dr. Pendell brought cutting-edge wellness technology to Radiance Natural Medicine, introducing Emsculpt NEO, Emsella, and Emface to the clinic. She truly believes in these advanced modalities because they harness the body's natural ability to build muscle, strengthen tissue, and promote healing from the inside out. These technologies, combined with her comprehensive approach to hormones, peptides, and regenerative medicine, create a powerful synergy for patients seeking to not just age gracefully, but to thrive.
Dr. Pendell divides her time between our Newberg and Lake Oswego locations, bringing her expertise and genuine passion for patient care to both communities. Whether you're struggling with hormone imbalances, seeking to optimize your vitality, or looking to enhance your wellness journey with the latest regenerative treatments, Dr. Pendell has both the knowledge and the heart to guide you toward feeling your absolute best.
Anissa Loseman - Office Manager & Patient Care Coordinator
The heartbeat of our Lake Oswego clinic
If Radiance Natural Medicine is a symphony of healing, Anissa is the conductor who makes every note sing in perfect harmony. With a Bachelor's degree in Nutrition and a fire in her soul for natural medicine, Anissa brings both scientific expertise and genuine passion to everything she does at our clinic.
As our office manager extraordinaire, Anissa orchestrates the daily operations with grace and precision, from scheduling appointments to supporting our doctors with patient care. But here's where she truly shines: Anissa is not just managing the office; she's an integral part of your healing journey. As an exceptionally skilled phlebotomist and IV technician, she has the magic touch that makes even the most needle-averse patients feel at ease.
What sets Anissa apart is her deep-rooted passion for nutrition and natural medicine. She lives and breathes the holistic philosophy that makes Radiance special, and there's nothing she loves more than seeing patients transform their health through our innovative modalities. Whether she's explaining the benefits of NAD+ therapy, preparing your customized IV drip, or simply greeting you with her infectious positive energy, Anissa ensures every visit feels welcoming, empowering, and perfectly aligned with your path to optimal wellness.
Her commitment to patient care, combined with her nutritional knowledge and technical expertise, makes Anissa the perfect ambassador for the Radiance approach, because feeling your absolute best takes a village, and she's proud to be your guide, your cheerleader, and your trusted partner in health.
Our Services at Lake Oswego
At our Lake Oswego location, we offer the full spectrum of cutting-edge naturopathic treatments:
Hormone Optimization
- Bioidentical Hormone Replacement Therapy (HRT) 
- Thyroid optimization 
- Perimenopause & menopause care 
- Testosterone therapy 
Medical Weight Loss
- GLP-1 medications (semaglutide, tirzepatide) 
- Peptide therapy 
- Comprehensive metabolic support 
- Emsculpt NEO body contouring 
IV & Nutrient Therapy
- NAD+ infusions 
- Customized vitamin IV drips 
- Immune support protocols 
- Energy & performance optimization 
Regenerative Treatments
- Platelet-Rich Plasma (PRP) therapy 
- Prolotherapy for joint health 
- Cortisone micro-dosing 
Advanced Aesthetic Treatments
- Emsculpt NEO (muscle building + fat reduction) 
- Emsella (pelvic floor strengthening) 
- Emface (facial toning & lifting) 


