About
Dr. Hayley Miller is the founder and Medical Director of Mountain States Diabetes in Missoula, Montana. S. in Nutrition and Food Sciences from the University of Wyoming. D. came from the University of Washington School of Medicine. She completed two years of Internal Medicine residency in La Crosse, Wisconsin, then accepted a fast-track fellowship in Endocrinology, Diabetes and Metabolism at the University of Utah in Salt Lake City.
Dr. Miller is board-certified in Internal Medicine and Endocrinology. She carries a deeply personal connection to her specialty: she received a type 1 diabetes diagnosis at age 10 and has lived with T1D for over three decades. That experience shapes her approach to every patient. She has given talks to clinicians and patients on insulin pump therapy, continuous glucose monitoring, insulin intensification, and weight management. Dr. Miller is passionate about making high-quality endocrine care genuinely affordable. Outside the clinic, she is a dedicated Barre enthusiast who enjoys movies, travel, and outdoor activities with her husband and teenage sons.
Education & Training
Undergraduate
University of Wyoming, B.S. Nutrition and Food Sciences
Medical School
University of Washington School of Medicine
Residency
Internal Medicine, La Crosse, Wisconsin (2 years)
Fellowship
Endocrinology, Diabetes and Metabolism, University of Utah, Salt Lake City
Conditions Treated
Who is Dr. Miller right for?
Dr. Miller is an excellent fit for adults managing type 1 or type 2 diabetes who want specialist-level, relationship-driven care. Patients with thyroid disorders, including Hashimoto's, Graves disease, or thyroid nodules, benefit from her endocrine expertise. She also serves adults working toward weight management goals through evidence-based medications and lifestyle support. Anyone navigating complex blood sugar management, insulin pumps, or continuous glucose monitoring will find her depth of experience valuable.
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Frequently Asked Questions
Dr. Miller treats a wide range of endocrine and primary care conditions. Her core focus includes type 1 diabetes, type 2 diabetes, and gestational diabetes. She also manages thyroid disorders such as Hashimoto's disease, Graves disease, thyroid nodules, and thyroid cancer. Additional conditions include hypertension, obesity, high cholesterol, gout, depression, anxiety, and infections.
Yes. Dr. Miller holds board certification in Internal Medicine and Endocrinology. She completed her fellowship in Endocrinology, Diabetes and Metabolism at the University of Utah in Salt Lake City after finishing her Internal Medicine residency in La Crosse, Wisconsin.
She does. Dr. Miller received a type 1 diabetes diagnosis at age 10 and has lived with the condition for over 30 years. That personal experience directly informs her clinical approach and her commitment to making diabetes care accessible and affordable.
Dr. Miller manages insulin pump therapy, continuous glucose monitoring, and artificial pancreas systems, including both commercial and open-source platforms. She has lectured to clinicians and patients on these technologies and keeps her CME hours above 100 per year to stay current.
Yes. Dr. Miller offers a science-based weight management program for adults. She identifies medical causes of weight gain and builds individualized plans combining lifestyle changes, diet, exercise, and medications. She currently prescribes Phentermine, Wegovy, Saxenda, Ozempic, and Mounjaro, and also offers B12 shots.
Dr. Miller provides comprehensive thyroid management, covering Hashimoto's disease, Graves disease, thyroid nodules, and thyroid cancer. She weighs symptoms alongside lab results when building a treatment plan, rather than relying on numbers alone.
Dr. Miller is deliberate about keeping care affordable. She processes labs through LabCorp at significantly lower prices than local hospitals and works to connect patients with cost-saving resources for medications. Her flat-fee membership eliminates copays and surprise bills entirely.
Dr. Miller conducts appointments in English. The practice also has a registered nurse and virtual assistant on the team who support patient communication.
Doctor profile last updated April 10, 2026