What drives the cost
Number of workers, whether the visit is baseline or periodic surveillance, which chemicals/noise hazards are listed, which labs/X-ray/spirometry/audiometry the form requires, and whether an OHD(NIOSH) signature is needed for that exam type.
Dr Prabagaran (MMC 63651, OHD NIOSH) leads OHD pathways. See chemical exposure medical surveillance and occupational health OHD Johor.
FOMEMA packages are a separate foreign-worker pathway with different paperwork — do not mix assumptions.