Arroyo Medical Group is a multi-physician internal medicine and concierge primary care practice serving California's Central Coast from its main office in Pismo Beach. Founded in 1991, the practice has become one of the region's most respected longevity-focused medical groups, offering a hybrid concierge model that pairs the depth of a multi-specialty physician team with the personalized access of a boutique practice. Led by managing partner Dr. Cary Fitchmun — a UC Davis-trained family physician and member of the American Academy of Anti-Aging Medicine — and Medical Director Dr. Megan Malzone, a University of Washington-trained internist with Alpha Omega Alpha honors, the group brings exceptional academic credentials and over three decades of Central Coast community care to every patient relationship.

About the Practice

The physician team at Arroyo Medical Group brings breadth and depth that few private practices can match. Dr. Cary Fitchmun, managing partner, graduated with honors from UC Berkeley before earning his MD from UC Davis School of Medicine on a Regents Scholarship. Board-certified and a member of both the American Academy of Anti-Aging Medicine (A4M) and the American Academy of Family Physicians, Dr. Fitchmun leads the concierge longevity program — integrating innovative laboratory testing with an expert team of nutritionists, exercise physiologists, and personal trainers. Dr. Megan Malzone, Medical Director, trained at the University of Washington School of Medicine and completed her Internal Medicine residency at Santa Barbara Cottage Hospital. An Alpha Omega Alpha graduate and American College of Physicians member, Dr. Malzone specializes in women's health, diabetes, dermatology, and complex medical conditions. The team is rounded out by Dr. David Ruiz (UCLA, board-certified Family Medicine) and Dr. Amanthi Chandrasena (board-certified Family Medicine, former Chief Resident).

Services Offered

• Concierge Primary Care — Membership-based personalized primary care with same-day appointments and direct physician access, designed for patients who make long-term health a priority.
• Longevity Medicine & Healthspan Optimization — Innovative lab testing, early intervention protocols, and lifestyle modification programs targeting both lifespan extension and healthspan quality.
• Internal Medicine & Chronic Disease Management — Comprehensive evaluation and ongoing care for complex and chronic medical conditions by board-certified internists and family physicians.
• Women's Health — Full-spectrum women's health services including hormonal health, preventive care, and management of complex gynecologic conditions across all life stages.
• Dermatology & Skin Health — Evaluation and treatment of skin conditions alongside aesthetic and preventive dermatology by physicians with advanced dermatology training.
• Nutrition, Fitness & Weight Management — Collaborative care with an expert team of nutritionists, exercise physiologists, and personal trainers integrated into each patient's longevity plan.
• Preventive Care & Annual Physicals — Thorough wellness evaluations including cardiovascular risk assessment, cancer screening, and personalized preventive health strategies.
• Diabetes & Metabolic Health — Expert management of type 2 diabetes, insulin resistance, and metabolic syndrome with lifestyle-first and precision medicine approaches.
• Mental Health & Behavioral Wellness — Integrated care addressing anxiety, depression, burnout, and related conditions as part of a whole-person health approach.
• Urgent Care & Acute Illness — Same-day evaluation and treatment for acute illnesses and injuries, with the advantage of continuity with your own physician.

What to Expect

Arroyo Medical Group is located at 931 Oak Park Blvd, Suite 101A, Pismo Beach, CA 93449. A second location serves Arroyo Grande at 336 S Halcyon Rd. Call (805) 474-2600 to schedule or (805) 474-2611 to speak with the New Patient Coordinator about the concierge program. Appointments and medical records are accessible through the athenahealth patient portal at arroyomedicalgroup.com.