The **New York City Department of Health and Mental Hygiene (DOHMH)** is a leading municipal public health agency responsible for protecting and promoting the health of over 8 million New Yorkers across the five boroughs. Established over two centuries ago, it is one of the oldest and largest public health departments in the world, operating with an annual budget of approximately $1.6 billion and employing more than 7,000 staff members[2][3]. DOHMH’s work spans a broad spectrum of public health functions, including disease prevention, health promotion, environmental health, mental health services, and emergency preparedness. It issues birth certificates and dog licenses, enforces restaurant inspections, and conducts epidemiological investigations to detect and control disease outbreaks. The agency is organized into multiple divisions led by deputy commissioners, covering areas such as mental hygiene, disease control, environmental health, epidemiology, and health promotion[3]. In mental health, DOHMH has implemented innovative programs like **Mental Health First Aid (MHFA)**, an evidence-based training offered citywide in multiple languages to expand community capacity in recognizing and addressing mental health needs. During the COVID-19 pandemic, MHFA staff were redeployed to focus on communities disproportionately affected, engaging residents in conversations about mental health, equity, and resilience[1]. The department also operates the **NYC 988** mental health hotline, providing free, confidential support via phone, text, or chat to all New Yorkers, regardless of immigration status[4]. DOHMH’s initiatives include services for children with behavioral challenges through Family Resource Centers and support for first-time parents via the Nurse-Family Partnership program, underscoring its comprehensive approach to public health and mental hygiene[4]. The department's epidemiological research informs policies addressing challenges such as inequitable life expectancy, infectious diseases, tobacco control, substance use, and climate change[2]. The department is noted for its commitment to equity and innovation in public health and mental healt