4 Best Hormone Testing Clinics in Seattle (2026)

Longevity Medical Clinic has operated in the Seattle metro area since 1997, building one of the Pacific Northwest's longest-running preventive medicine practices under founder Dr. Jerry Mixon. The clinic operates on a direct-pay membership model — no insurance, no Medicare — with three Washington state locations: Kirkland (primary), Lynnwood, and Tacoma. The flagship programme pairs quarterly comprehensive blood panels with physician-led optimisation targeting youthful hormone baselines rather than age-adjusted reference ranges. The panel spans a full hormone profile (testosterone, DHEA-S, IGF-1, estradiol, pregnenolone, PSA), thyroid function (TSH, free T3, free T4), cardiovascular markers, inflammatory markers, metabolic glucose, key nutrients, MTHFR and APoE genetics, and biological age via myDNAge DNA methylation testing. IV vitamin therapy — including Myers' Cocktail, NAD+, and glutathione — is available at the Kirkland location and open to non-patients. The team of 11+ physicians and physician assistants hosts a weekly radio programme called Leading Edge Medicine and has published more than 150 educational articles. HSA and FSA payments are accepted.

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Seattle Integrative Medicine is a shared-practice naturopathic clinic located at 2111 N Northgate Way in Seattle's Northgate neighborhood, housing a team of six licensed naturopathic physicians. The clinic takes a whole-person approach that integrates conventional diagnostic testing with complementary therapies including botanical medicine, physical medicine, craniosacral therapy, acupuncture, and nutritional counseling. Dr. Laurie Mischley (ND, PhD, MPH), one of the country's leading researchers in Parkinson's disease nutrition and management, sees patients alongside Dr. Samantha Evans (ND) for neurology and GI health, Dr. Melissa McCarty (ND) for general naturopathic care, Dr. Christian Dodge (ND) for primary and specialty care, Dr. Brenna Regan (ND) for nutrition and botanical medicine, and Dr. Joshua Farahnik (ND, MPH, RH(AHG)) for men's health, hormone optimization, IV therapy, peptide therapy, regenerative medicine, and functional lab testing. The clinic operates Monday through Friday from 9:00 AM to 5:00 PM and is consistently rated among Seattle's top naturopathic practices, ranked #1 of 415 Seattle naturopaths on Fresh Chalk with 100% positive reviews.

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The Polyclinic — founded in 1917 and now operating as Optum Care Washington — is Seattle's most established multi-specialty group practice, with its flagship location at 1145 Broadway on First Hill. The Broadway campus houses primary care physicians in Internal Medicine and Family Medicine, a full-service on-site clinical laboratory, diagnostic imaging, and specialty departments including Endocrinology and Lifestyle and Metabolic Medicine. More than 200 physicians serve patients across 14 locations, and the practice holds the #1 and #2 quality rankings out of 325 clinics assessed by the Washington Health Alliance. Services available at the Broadway campus include annual wellness exams and preventive physicals covered by Medicare and commercial insurance, comprehensive blood draw with same-day results for routine panels, and endocrine evaluation covering thyroid disorders, adrenal conditions, and hormonal imbalance screening. The MyChart patient portal is available for scheduling and results access. Patients are accepted on Original Medicare, most Medicare Advantage plans, and commercial insurance plans.

Available Hormone Testing: