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A New Model of Wellness

Personalized Functional Medicine in Los Gatos, CA

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Where Innovation Meets Compassionate Care

Welcome to Avita MD in Los Gatos, CA

The team at Avita MD is redefining healthcare with a focus on personalized, whole-person wellness. We combine functional medicine, advanced diagnostics, and evidence-based therapies with individual attention that puts you at the center of your wellness journey. At our Los Gatos clinic, patients find care that is both personalized and empowering, whether it’s hormone optimization, heart health screenings, IV therapies, or aesthetics.

We are more than providers. We are advocates, educators, and partners. We navigate the complexities of healthcare, provide access to the state-of-the-art testing and therapies, and stand by you at every step. With a focus on both immediate results and long-term vitality, we help you feel stronger, healthier, and more confident in your future.

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Experience, Expertise & Compassion

The Avita MD Team

At Avita MD, medicine is personal. Our team is made up of physicians, physician associates, and dietitians who are here not just to treat conditions but to build lasting relationships with our patients. We see every visit as an opportunity to listen, understand, and guide you toward the healthiest version of yourself.

Led by Stanford-trained, dual board-certified Dr. Patricia Sitnitsky, our providers bring decades of combined experience in internal medicine, obesity medicine, aesthetics, and functional care. Each member of our team is deeply committed to patient advocacy, navigating complex healthcare systems, securing specialist referrals, and simplifying decisions that can otherwise feel overwhelming.

At Avita MD, you’ll find more than clinical expertise. You’ll find partners who stand beside you, ready to protect your health and help you thrive.

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The Core of Personalized Wellness Care

Popular Services

At Avita MD, we focus on the treatments that make the biggest impact on long-term wellness and daily vitality. From hormone balance and weight management to gut health, heart screenings, IV therapies, and immigration exams, our services are designed around your unique needs. Each program blends advanced diagnostics with personalized care, giving you practical solutions that protect your health today and for the future. Explore our most-requested services, and discover how our team can guide you toward feeling your best.

BHRT Medical Weight Loss Functional Medicine Heart Health IV Therapy Immigration Physicals

Precision Hormone Care for Modern Life

Bioidentical Hormone Replacement Therapy (BHRT) in Los Gatos, CA

Hormones influence everything, from mood and metabolism to sleep and skin. As we age, imbalances can leave us feeling tired, foggy, or out of sync. At Avita MD, we use advanced testing and bioidentical hormone therapy to restore your hormonal balance safely and effectively. Our personalized approach ensures that treatment supports your body’s unique needs, so you feel more like yourself again.

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Your Partners in Sustainable Weight Loss

Medical Weight Loss With GLP-1s in Los Gatos, CA

Weight management is about more than willpower. It’s about biology. Our providers use FDA-approved GLP-1 medications, genetic testing, and metabolic screening to design a completely personalized weight-loss program that works with your body. Dietitian support ensures you get practical, sustainable nutrition guidance that fits your lifestyle. With Avita MD, you’ll have the tools and advocacy you need for lasting change.

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Gut Rebalancing for Whole-Body Health

Functional Medicine Gut Protocols in Los Gatos, CA

The health of your gut affects so much more than digestion, including your mood, skin, hormones, and even immunity. At Avita MD, we use advanced methods like SIBO breath testing, microbiome analysis, and food sensitivity panels to uncover hidden causes of bloating, IBS, or reflux. Our providers then create and guide you through a personalized protocol, including targeted supplementation and dietitian support that makes nutrition changes practical and effective. The result? Better digestion, more energy, and a healthier foundation for whole-body wellness.

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Early Detection for Lifelong Protection

Heart Health in Los Gatos, CA

Heart disease often develops silently, making early detection crucial. Avita MD goes beyond routine labs with advanced lipid testing, inflammation markers, and genetic screening to uncover hidden risks. Our providers combine these insights with nutrition and medication strategies designed to reduce risk and build long-term resilience. With proactive care, we help protect your most vital system before problems arise.

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Support Your Body at the Cellular Level

IV Therapy in Los Gatos, CA

IV therapy provides fast, effective support by delivering essential nutrients directly into your bloodstream. From NAD+ for cellular renewal to Vitamin C for immune health, our drips are designed to target your body’s needs with precision. Whether you’re recovering from stress, fighting fatigue, or optimizing longevity, our IV therapies help restore balance and vitality. Treatments are safe, customizable, and performed in a supportive and comfortable medical setting.

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Comprehensive & Compassionate Care

Immigration Physicals in Los Gatos, CA

Immigration exams can feel overwhelming, but our team makes the process simple, supportive, and efficient. At Avita MD, we provide USCIS-compliant medical evaluations with on-site diagnostics and expert providers to guide you every step of the way. Our multilingual call center and HIPAA-compliant portal make communication seamless. We ensure your experience is thorough, accurate, and stress-free.

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“The epitome of exceptional primary care”

Patient Testimonials

“I absolutely love Dr. Stitinsky! She’s an amazing provider and is incredibly thorough in her approach. I completely trust her with my care and with friends and family. She’s direct and to the point, which I find refreshing. Her staff is great and the office is lovely. I've gone to several doctors and can say I highly recommend her.”

—D.C., Mountain View, CA, Medical Patient

“If you want caring doctors who can handle even the most complex medical cases, go to Avita MD. Dr. Sitnitsky and Dr. Taunk are fantastic.”

—J.M., Los Gatos, CA, Medical Patient

“Dr. Taunk is so patient and thoughtful. He helped me understand my health in a whole new way.”

—S.T., Los Gatos, CA

“I had a great experience at this clinic! The doctor made me feel comfortable and took the time to truly listen to my concerns. They asked thoughtful questions about my medical history and were genuinely interested in how I was feeling, not just physically, but overall. It felt like they really cared, and that made a huge difference. I left feeling heard and supported. Highly recommend!”

–U.K., Los Altos, CA, Medical Patient.

“I’ve been a patient of Dr. Sitnitsky‘s for several years now, and she is by far the best doctor that I’ve ever had. She is extremely intelligent and detail-oriented as well as patient and understanding. She’s helped me uncover and diagnose medical issues that other doctors have glazed over for years. Would recommend to her to anyone—the new office is welcoming, with a competent staff, and it’s easy to schedule appointments online.”

—B.O., Los Gatos, CA, Medical Patient.

“Dr. Patricia Sitnitsky: the epitome of exceptional primary care. I consider myself incredibly fortunate to have discovered Dr. Patricia Sitnitsky, as she has proven time and again to be an outstanding primary care doctor. From routine check-ups to managing chronic conditions, Dr. Sitnitsky consistently delivers top-notch care with unparalleled expertise and compassion. One of Dr. Sitnitsky's most remarkable qualities is her patient-centered approach to care. She is an exceptionally patient and attentive listener, taking the time to truly understand her patients' concerns and needs. Her genuine empathy shines through in every interaction, creating a supportive and trusting environment where patients feel valued and heard.”

—C.S., Los Gatos, CA, Medical Patient.

“I appreciate the attention to detail and clear communication at Avita MD. The doctors are knowledgeable and compassionate.”

— L.W., Los Gatos, CA, Medical Patient.

“Avita MD made me feel comfortable and heard. They take their time to explain everything and ensure the best care possible.”

— B.M., Los Gatos, CA, Medical Patient.

Take the Next Step in Better Wellness

Schedule Your Consultation Today

Your health deserves more than routine care. It deserves precision, advocacy, and a partner who stands by you. Whether you’re ready to explore preventive medicine, functional protocols, or aesthetics, our team is here to guide you with clarity and compassion.