Dr. Anastasia Ilchenko is an Internal Medicine specialist in Lisbon, recognized for her exceptional diagnostic accuracy and extensive expertise in managing complex, multisystem, and chronic medical conditions. Internal Medicine is one of the most intellectually demanding specialties in modern healthcare, requiring advanced analytical skills and broad clinical knowledge. Dr. Ilchenko’s approach reflects this depth—combining rigorous clinical reasoning with the ability to make sound medical decisions even in the most challenging and unclear situations.

In Portugal, an Internal Medicine physician undergoes several years of advanced hospital-based training after completing a General Practice qualification. Internal Medicine includes in-depth diagnostics, comprehensive management of diseases affecting internal organs, and substantial experience caring for patients with multiple coexisting medical conditions. This specialty requires not only broad medical expertise, but also refined clinical judgment, attention to detail, and the ability to connect symptoms across different organ systems into a unified clinical picture.

For adult patients seeking a highly experienced, thoughtful, and exceptionally thorough physician in Lisbon, Dr. Anastasia Ilchenko is often the doctor of choice—especially in cases that are complex, chronic, multisystemic, or remain “unexplained.” Patients turn to her when they need the most accurate diagnostic plan, coordinated long-term management, or a specialist capable of seeing the whole picture where others may only see isolated elements.

When an Internal Medicine consultation is especially helpful:

• When symptoms are unclear or involve several organ systems
• When an in-depth, comprehensive diagnostic evaluation is required
• When chronic diseases need careful, structured follow-up
• When multiple conditions interact and require an integrated clinical approach
• When an analytical, “detective-style” medical assessment is needed
• When a second or third medical opinion is required

Clinical areas managed by Internal Medicine (patients 18+):

• Cardiology (hypertension, arrhythmias, heart failure, cardiovascular risk assessment)
• Gastroenterology (reflux, gastritis, IBS, liver and pancreatic disorders)
• Nephrology (kidney disease, urinary abnormalities, electrolyte disorders)
• Endocrinology (thyroid disorders, diabetes, metabolic syndrome, hormonal imbalances)
• Hematology (anemia, clotting abnormalities, iron deficiency, blood disorders)
• Rheumatology (autoimmune diseases, joint inflammation, chronic pain syndromes)
• Pulmonology (asthma, chronic cough, bronchitis, respiratory infections)
• Infectious Diseases (recurrent infections, complex diagnostic evaluations)

Reasons to book an appointment with Dr. Anastasia Ilchenko:

• Complex or long-standing symptoms that remain without a diagnosis
• Multiple chronic conditions requiring coordinated, integrated care
• Fatigue, weakness, weight loss, unexplained fevers
• Assessment of cardiovascular, endocrine, metabolic, or autoimmune risks
• Preparation for an in-depth diagnostic evaluation or a preventive check-up
• Second opinions for complex or unclear clinical cases
• Long-term management of chronic illnesses grounded in evidence-based medicine

Dr. Ilchenko’s approach is defined by analytical depth, clinical thoroughness, and a strong commitment to individualized patient care. She believes that even the most complex medical cases become solvable when every detail is carefully examined and each organ system is considered within the context of the whole person.

Languages spoken: Portuguese, English, Russian