Our Doctors

Our doctors provide consultations on a wide range of issues related to diagnosis and treatment. All specialists hold a valid medical license (Inscrição na Ordem dos Médicos).

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    Drª Mariia Melnikova

    Chief Medical Officer & Founder of NovoDoc


    Languages: Russian, English, Portuguese


    Experience: 10+ years


    Physician specialized in evidence-based Lifestyle Medicine with over 10 years of clinical experience in Russia and Portugal.
    Founder and Chief Doctor of the NovoDoc telemedicine center.

    Worked with WHO, Cochrane, INFARMED and leading Portuguese research institutions. Helps expats build long-term, personalized health and prevention strategies.


    Consultations:

    • Disease prevention and family health strategies

    • Pediatrics (acute and chronic conditions)

    • Second opinions and complex cases

    • Navigation within the Portuguese healthcare system

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    Drª Lesia Yefymenko

    Family Physician / Internal Medicine


    Languages: Russian, Ukrainian, Portuguese


    Experience: 25+ years

    Family doctor with extensive international experience in Eastern Europe, Africa, and Portugal. Specialized in infectious and tropical diseases, family planning, weight management, and mental health.

    Consultations:

    • Chronic disease management

    • Weight loss and medical therapy

    • STIs and HIV prevention

    • Family planning and contraception

    • Uncomplicated pregnancy follow-up

    • Depression and anxiety (mild to moderate)

    • Travel medicine and vaccinations

  • Dr. Sergey Karpov

    General Practitioner & Surgeon


    Languages: Russian, Portuguese, English, German


    Experience: 15+ years


    Experienced GP and surgeon with background in transplantology and vascular surgery. Works with pain syndromes, infections, and adaptation of medical documents to European standards.


    Consultations:

    • Infections (UTIs, STIs, prostatitis)

    • Back pain and nerve compression

    • Mild depression, anxiety, sleep disorders

    • Proctological issues

    • Prescriptions and test result interpretation

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    Dr. Sergey Zagidulin

    Internal Medicine Specialist


    Languages: Russian, Portuguese


    Experience: 15+ years

    Physician specialized in complex diagnostic and therapeutic cases. Works in one of Portugal’s largest university hospitals.


    Consultations:

    • Acute and chronic internal diseases

    • Gastrointestinal, cardiopulmonary, metabolic conditions

    • Medical certificates and official health reports

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    Drª Iryna Manzheleieva

    Infectious Diseases & General Practice


    Languages: Ukrainian, Portuguese, English

    Experience: 5+ years

    Physician specialized in infectious diseases with hospital and outpatient experience in Portugal.


    Consultations:

    • Acute and chronic infections

    • Prescriptions and laboratory referrals

    • Interpretation of test results