As an infectious disease specialist affiliated with Sharp Grossmont Hospital, Dr. Fadi A. Haddad, MD, manages complex infections from his La Mesa practice on Center Drive, treating conditions from sepsis and osteomyelitis to travel-related illness. The practice's antimicrobial stewardship work selects targeted antibiotic regimens based on culture sensitivities and resistance patterns, coordinating with dispensing facilities such as Sharp Grossmont Hospital Pharmacy for IV and specialty-compound prescriptions. Fellowship training in infectious disease at Westchester Medical Center from 2001 to 2003 followed internal medicine residency at Hackensack University Medical Center, producing published research on MRSA bacteremia treatment protocols involving daptomycin-ceftaroline combination therapy. Clinical services span travel immunization consultation, HIV and PrEP management, hepatitis evaluation, and post-surgical infection assessment that intersects with the procedural volume at Grossmont Surgery Center near Sharp Grossmont Hospital. Highest-complexity consultations involve multi-drug-resistant organism management requiring extended IV antibiotic courses administered via peripherally inserted central catheter lines, guided by serial blood-culture surveillance and inflammatory-marker trending.