ONDAAR

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

• Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
• Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
• Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
• General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
• Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
• Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
• Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
• Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
• Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

• 12+ years of clinical experience in university hospitals in Germany and Spain.
• International education: Ukraine – Germany – Spain.
• Member of the German Society of Surgeons (BDC).
• Certified in radiological diagnostics and robotic surgery.
• Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

Dr Khrystyna Habrykevych is a gastroenterologist providing online consultations for adults with digestive and abdominal health concerns. She helps patients understand the causes of their symptoms, interpret test results, and choose appropriate next steps – whether it’s further investigation, treatment, or lifestyle adjustments.

Common reasons for consultation include:

• abdominal pain, cramps, discomfort, painful bowel movements
• heartburn, acid reflux, burping, bitter taste in the mouth
• bloating, excessive gas, nausea or vomiting
• diarrhoea, constipation, difficulty passing stool
• unexplained changes in weight or appetite
• concern about gut health or long-term digestive issues
• changes in lab results, questions about test interpretation
• digestive system cancer screening and prevention
• general digestive check-ups and health assessments

Dr Habrykevych follows evidence-based medical standards and adapts each consultation to the patient’s individual situation. The online format allows for timely medical support without the need for an in-person visit.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

• fever, chills, fatigue and viral symptoms
• cough, sore throat, nasal congestion, breathing discomfort
• bronchitis and mild asthma flare-ups
• nausea, diarrhoea, abdominal pain, digestive infections
• rashes, allergic reactions, redness, insect bites
• muscle or joint pain, mild injuries, sprains
• headache, dizziness, migraine symptoms
• stress-related symptoms, sleep disturbances
• questions about test results and treatment plans
• management of chronic conditions in stable phases

Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

• Advanced Trauma Life Support (ATLS)
• Basic and Advanced Cardiac Life Support (BLS/ACLS)
• Pediatric Advanced Life Support (PALS)
• Prehospital Trauma Life Support (PHTLS)
• eFAST and critical care transthoracic echocardiography
• aviation medicine

He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.

Dr. Muhammad Tayyab Altaf is a primary care physician with extensive international experience, offering online consultations for adults and children. His background includes clinical practice in Italy, the United States and other healthcare settings, allowing him to manage a wide range of acute and chronic medical conditions with confidence and clarity.

His clinical expertise spans multi-system conditions, preventive care and long-term management of chronic diseases. Dr. Altaf combines hands-on experience with a strong research background in both medical and surgical fields, enabling him to provide accurate assessments and structured, evidence-based treatment plans. Patients value his ability to explain diagnoses clearly, outline next steps and support them in making informed healthcare decisions.

Online consultations with Dr. Altaf are suitable for many everyday and acute situations where a timely medical opinion can help determine the safest next steps. He evaluates and treats conditions affecting the cardiovascular, respiratory, gastrointestinal, neurological, haematological and endocrine systems. Common examples include:

• hypertension and other blood pressure issues
• ischaemic heart disease and angina
• asthma, COPD and emphysema
• pneumonia and lung fibrosis
• gastroenteritis and digestive infections
• liver conditions, including alcohol-related disease
• epilepsy, seizures and post-stroke symptoms
• dementia and cognitive decline
• anaemia and other haematological changes
• diabetes, thyroid disorders and pituitary disease

Many patients reach out when they experience new or worsening symptoms, fluctuations in blood pressure, non-severe chest discomfort, breathing symptoms, digestive issues, suspected infections, chronic fatigue or concerns that affect daily life. He also helps patients understand test results, adjust existing treatment plans and navigate long-term health strategies safely and effectively.

When clinically appropriate, Dr. Altaf can also provide health and fitness certificates, including documentation required for physical activity, sports participation or gym use, based on the patient’s health status and medical indications.

Some conditions are not suitable for online care. Severe chest pain, loss of consciousness, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack require immediate attention from local emergency services. Dr. Altaf prioritises patient safety and will guide you accordingly if your situation needs urgent in-person care.

In all consultations, Dr. Muhammad Tayyab Altaf focuses on clear communication, accurate diagnosis and patient-centred decision-making. His approach ensures that individuals and families feel informed, supported and confident in their next steps, no matter where they are.

Dr. Karim Ben Harbi is a licensed general practitioner based in Italy. He provides online consultations for adults and children, combining international clinical experience with evidence-based medicine. His care approach is focused on accurate diagnosis, preventive care, and personalised health guidance.

Dr. Ben Harbi received his medical degree from Sapienza University in Rome. His training included hands-on experience in diverse settings — tropical medicine, rural healthcare, and urban outpatient practice. He also conducted clinical research in microbiology, exploring the role of the gut microbiome in chronic gastrointestinal issues.

You can consult Dr. Ben Harbi for:

• General health concerns, prevention, and primary care.
• Hypertension, type 1 and type 2 diabetes, metabolic issues.
• Cold, cough, flu, respiratory infections, sore throat, fever.
• Chronic digestive issues: bloating, gastritis, IBS, microbiome imbalance.
• Skin rashes, mild allergic reactions, basic dermatological complaints.
• Medication guidance, treatment adjustments, prescription review.
• Paediatric concerns — fever, infections, general well-being.
• Lifestyle optimisation: stress, sleep, weight, and diet counselling.

Dr. Ben Harbi offers reliable, accessible medical support through online consultations, helping patients make informed decisions about their health with a clear, structured, and compassionate approach.

Dr Liudmyla Boichuk is a family medicine doctor providing diagnosis and treatment for a wide range of acute and chronic conditions in adults and children. She works with respiratory, cardiovascular and digestive system disorders and has extensive experience caring for patients with multiple coexisting conditions, where coordinated, whole-person management is essential.

She treats adults with respiratory illnesses such as pneumonia, COPD and bronchial asthma, as well as cardiovascular conditions including hypertension and ischaemic heart disease. Her practice also covers gastrointestinal complaints and chronic comorbidities that require careful, structured medical supervision.

Dr Boichuk provides care for children from birth, including acute respiratory viral infections, infectious diseases, pneumonia, bronchitis, bronchial obstruction syndromes and allergic reactions. She offers clear, evidence-based guidance to parents and ensures safe follow-up throughout the child’s recovery.

Her work also includes developing personalised immunisation plans and supporting families with long-term preventive care.

Known for her structured clinical approach and clear communication, Dr Liudmyla Boichuk offers patients of all ages comprehensive, reliable and evidence-based medical care.

Dr. Svetlana Kolomeeva is a general practitioner and internal medicine doctor providing online consultations for adults. She helps patients manage acute symptoms, chronic conditions, and preventive care. Her clinical focus includes cardiovascular health, hypertension control, and managing symptoms like fatigue, weakness, sleep issues, and overall low energy.

Patients commonly seek her help for:

• High blood pressure, headaches, dizziness, swelling, palpitations.
• Diagnosis and management of hypertension, arrhythmias, and tachycardia.
• Metabolic syndrome, excess weight, high cholesterol.
• Chronic fatigue, insomnia, poor concentration, anxiety.
• Respiratory symptoms: colds, flu, sore throat, cough, fever.
• Digestive issues: heartburn, bloating, constipation, IBS symptoms.
• Chronic conditions: diabetes, thyroid disorders.
• Interpretation of lab tests and medical reports, therapy adjustment.
• Second opinion and decision-making support.
• Cardiovascular disease prevention and metabolic risk reduction.
• Long-term follow-up and dynamic health monitoring.

Dr Kolomeeva combines clinical expertise with personalised care. She clearly explains diagnoses, guides patients through symptoms and treatment options, and provides actionable plans. Her consultations are designed not only to address current complaints but also to stabilise chronic conditions and prevent future complications. She supports patients through every stage of care – from first symptoms to ongoing health management.

Dr. Mar Tabeshadze is a licensed endocrinologist and general practitioner in Spain. She provides online consultations for adults, offering medical support for a wide range of endocrine conditions and related health concerns.

• Diagnostic consultations for suspected endocrine disorders
• Management of thyroid conditions, including in pregnant women
• Early detection and treatment of type 1 and type 2 diabetes, with personalised therapy plans
• Obesity treatment: identifying underlying causes of weight gain, combining medication and non-pharmacological strategies, and long-term support
• Diagnosis and treatment of endocrine-related skin, hair, and nail issues
• Ongoing care for patients with osteoporosis, pituitary, and adrenal gland disorders

Dr. Tabeshadze takes a patient-centred approach based on evidence-based medicine. Her goal is to help patients achieve hormonal balance, manage chronic conditions effectively, and improve overall well-being through targeted, personalised care.

Dr Anna Biriukova is an internal medicine doctor with clinical experience in cardiology, endocrinology, and gastroenterology. She provides online consultations for adults, offering expert medical support for heart health, hormonal balance, digestive issues, and general internal medicine.

Cardiology – Diagnosis and treatment of:

• High blood pressure, blood pressure fluctuations, and cardiovascular risk prevention.
• Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
• Leg swelling, chronic fatigue, reduced exercise tolerance.
• EKG interpretation, lipid profile evaluation, cardiovascular risk assessment (heart attack, stroke).
• Post-COVID-19 cardiac monitoring and care.

Endocrinology – Diabetes, thyroid, metabolism:

• Diagnosis and management of type 1 and type 2 diabetes, and prediabetes.
• Individual treatment plans including oral medications and insulin therapy.
• GLP-1 therapy– modern pharmacological treatment for weight management and diabetes control, including drug selection, monitoring, and safety follow-up.
• Thyroid disorders – hypothyroidism, hyperthyroidism, autoimmune thyroid diseases (Hashimoto’s, Graves’ disease).
• Metabolic syndrome – obesity, lipid disorders, insulin resistance.

Gastroenterology – Digestive health:

• Abdominal pain, nausea, heartburn, gastroesophageal reflux (GERD).
• Stomach and intestinal conditions: gastritis, irritable bowel syndrome (IBS), indigestion.
• Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).

General internal medicine and preventive care:

• Respiratory infections – cough, colds, bronchitis.
• Lab test analysis, therapy adjustments, medication management.
• Adult vaccinations – planning, contraindications assessment.
• Cancer prevention – screening strategies and risk assessment.
• Holistic approach – symptom relief, complication prevention, and quality of life improvement.

Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

• Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
• ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
• Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
• Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
• Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
• Chronic diseases: hypertension, elevated cholesterol, weight management.
• Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
• Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

• IMT medical certificates for driving licence exchange in Portugal.
• Personalised preventive care and wellness consultations.
• Interpretation of test results and medical reports.
• Follow-up care and medication review.
• Support in managing multiple coexisting conditions.
• Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.