About
Dr. David Alonso is a board-certified internist and Fellow of the American College of Physicians practicing in Chico, California. He earned his medical degree from Temple University School of Medicine in 2003. He then completed his residency in Internal Medicine at Dartmouth-Hitchcock Medical Center. His clinical expertise spans complex internal medicine, hormone optimization, preventive medicine, functional medicine, and aesthetic procedures.
Dr. Alonso serves as Medical Director for four distinct practices, each focused on a different dimension of care. He approaches medicine by treating every patient as a whole person with unique goals. He combines traditional medical expertise with evidence-based innovative therapies. His community leadership is equally wide-ranging. He chairs the board of Healthy Rural California, a nonprofit advancing health equity and medical education in Northern California. He previously served as President of the Butte-Glenn County Medical Society and actively participates in legislative advocacy through the California Medical Association. He also speaks for GRAIL on early cancer detection and collaborates with BTL on aesthetic and restorative wellness treatments.
Education & Training
Medical School
Temple University School of Medicine, Class of 2003
Residency
Internal Medicine, Dartmouth-Hitchcock Medical Center
Certifications
Conditions Treated
Who is Dr. Alonso right for?
Dr. Alonso is a strong fit for adults seeking comprehensive, relationship-driven internal medicine care. Patients managing hormone imbalance, obesity, or complex chronic conditions benefit from his integrative approach. Those interested in combining medical and aesthetic care under one physician will find his four-practice model well-suited to their needs. He also serves patients who prioritize preventive care and early detection strategies. His concierge practice at Magnolia Comprehensive Internal Medicine offers 24/7 physician access for patients who want high-touch availability.
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Frequently Asked Questions
Dr. Alonso specializes in internal medicine, preventive medicine, and functional medicine. He also holds deep expertise in hormone optimization and medical aesthetics. His four practices let him address clinical, preventive, and aesthetic needs through a coordinated approach.
Yes, Dr. Alonso holds board certification in Internal Medicine. He also carries the FACP designation as a Fellow of the American College of Physicians. He trained at Dartmouth-Hitchcock Medical Center and earned his medical degree from Temple University School of Medicine in 2003.
Dr. Alonso graduated from Temple University School of Medicine in 2003. He completed his Internal Medicine residency at Dartmouth-Hitchcock Medical Center. That training formed the foundation for his broad clinical expertise today.
Dr. Alonso treats complex internal medicine conditions, hormone imbalance, obesity, and chronic disease. He also provides preventive care and medical weight management. His scope covers both acute and long-term health concerns across his four practices.
Dr. Alonso treats each patient as a whole person with unique needs and goals. He combines traditional medical expertise with innovative therapies to optimize outcomes. He builds personalized care plans grounded in evidence-based medicine and continuous attention to medical advances.
Yes, Dr. Alonso offers bioidentical hormone replacement therapy through Magnolia Health and Wellness. He also provides GLP-1 therapy and body composition assessment as part of his hormone optimization and medical weight management services.
Yes, Dr. Alonso offers a full range of aesthetic services through Amour Medical Aesthetics. These include Botox, dermal fillers, laser treatments, body sculpting, and medical-grade skin care.
Dr. Alonso chairs the board of Healthy Rural California, a nonprofit working to improve health equity in Northern California. He previously served as President of the Butte-Glenn County Medical Society. He actively participates in legislative advocacy through the California Medical Association and speaks professionally for GRAIL on early cancer detection technologies.
Yes, Dr. Alonso provides 24/7 physician access through Magnolia Comprehensive Internal Medicine, his concierge internal medicine practice. That practice also offers extended appointments, comprehensive evaluations, and complex care management.
Doctor profile last updated June 11, 2026