Medical diagnosis newsletters

NewsletterFIT tracks 3 newsletters that cover Medical diagnosis as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are Man in America (31K), Dr. Siyab MD - Cardiologist and Social Media Educator (8K) and Dr. Marizelle (3K).

Updated Oct 31, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Man in America31K subscribers

    SubstackEvery two weeks · last post 14 days ago

    Likely audience: healthcare professionals

  2. 2
    Dr. Siyab MD - Cardiologist and Social Media Educator8K subscribers

    SubstackMonthly or less · last post Aug 16, 2026

    Likely audience: Patients preparing for a first cardiologist visit

  3. 3
    Dr. Marizelle3K subscribers

    SubstackMonthly or less · last post 56 days ago

    Likely audience: Healthcare professionals

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