Welcome to 

Aster Natural Medicine

Please click here and go to the new website! 

Feel Better the Naturopathic Way!


Mariko Spalding, ND, LMT (She/Her)

Licensed Naturopathic Physician in Washington State, USA

Licensed Massage Therapist in Washington State, USA

I was born and raised in Japan. I had a long journey of finding my profession as a Naturopathic doctor. My life-changing moment was when I overcame PCOS by changing my diet and lifestyle, but the biggest factor I found was the importance of finding authenticity in myself and knowing the real causes of my stress. 

I believe finding the root cause(s) and your true self is the most important starting point to treating the whole person. It is so important to understand what is going on in your body and the reason why you are having symptoms.
I speak English and Japanese.



Visit lengths: Initial visit is 75 minutes; following visits are 60 minutes

Accepting Insurance plans below: 

PIP/Motor Vehicle Accident insurance


Premera Blue Cross


To ensure a smooth process and avoid any surprises from the insurance company, I kindly request each of you to contact your insurance plan and verify coverage for:

Please note that I am not using my massage therapy license (LMT) for these insurance plans, 

so all visits will be treated as naturopathic physician visits.

What is Naturopathic Medicien?

Naturopathic Medicine is a unique medical field that connects the laws of nature,  using natural healing methods to treat discomfort, and scientific methods based on modern evidence.

Naturopathic doctors (NDs) practice according to the laws of nature using natural means.

Professional Membership


Dr Spalding is everything you could hope for in a healthcare professional – she is knowledgeable, compassionate, and deeply committed to your care. Unlike many doctors these days, she listens with complete focus and remembers every detail at each visit. I’ve been seeing Dr Spalding for complications/side effects related to cancer treatment and she is the only specialist (there were 4 others) who actually provided real solutions and relief. I’m so grateful I found her and highly recommend her to anyone looking for an exceptional naturopathic doctor!

A. M.

Kirkland, WA

I saw Dr Mariko Spalding initially for cranial sacral therapy. I had been suffering from vestibular inflammation post covid, and found immediate temporary relief after one session, but permanent relief after the second session. I was very grateful to find her and look forward to continuing my sessions!

C. A.

Kirkland, WA

I went to see Dr. Spalding recently for a pregnancy massage. I was having excruciating SI/sciatica pain and Dr. Spalding hit on the exact spots that were tight and causing tension. She did a combination of craniosacral and massage and I was blown away by her knowledge and specificity! It helped so much. I also was impressed by her knowledge of PCOS and her combination of a mindbody and natural health/naturopathic approach. I will definitely be seeing her again and recommend her!

K. G.

Shoreline, WA

Dr. Mariko is the best. She’s been helping me with severe neck/shoulder stiffness for the last few months and has played a significant role in my improvement. She is attentive, kind, and has that hard-to-find mix of skill and intuition that yields true healing. She even researches new techniques for my particular needs between sessions, which makes me feel so well cared for. Highly recommend!

A. W.

Redmond, WA

Dr. Mariko is a very knowledgeable and effective practitioner and healer. I achieved results after just three treatments for shoulder pain. I can highly recommend her.

N. P.

Woodinville, WA

Mariko saw me after a pretty bad car accident and has really calmed my neck, back and shoulder down giving me much better movement and far less pain after even the first visit. Massage, cupping, lots of stretching and some homeopathic remedies and I’m feeling lots of relief. If you want a ND/LMT that’s a good listener and eager to get you on the right track, reach out to her right away!

H. K.

Kirkland, WA

Book with Dr. Mariko Now Click HERE 


Send Appointment request or questions to info@asternaturalmedicine.com