Introduction : Health Management Information System (HMIS) facilitates systematic recording, storage, and analysis of health data to support decision-making and strengthen service delivery. Tamil Nadu, an early adopter of digital health, launched HMIS in 2007 and is transitioning to HMIS 3.0, integrating services across care levels with improved analytics and real-time reporting. This study evaluates HMIS 3.0 implementation in public health facilities under Poonamallee HUD.
Methods : A cross-sectional formative evaluation was conducted in all 13 public health facilities from February 2024 to March 2025 using input, process, and output indicators. Data sources included system logs, module usage reports, digital registers, and stakeholder interviews. Data were collected via Epicollect and analyzed in Epi Info.
RESULTS: Facilities were equipped with 52 desktops, 13 tablets, printers, and broadband. Nine of 16 modules were activated, and all staff received training. Compliance exceeded 98% for outpatient registration, prescriptions, laboratory tests, and inpatient documentation, while ABHA-ID creation remained low (23%). Outpatient consultations totaled 472,520, with 77% digital prescriptions and 59% linked to dispensed drugs; 83% of 134,856 lab reports were digitized.
CONCLUSION: HMIS 3.0 demonstrated infrastructure readiness and high module uptake. Gaps in ABHA-ID adoption, prescription–dispensation linkage, and module rollout highlight areas for targeted improvement before state-wide scale-up.