• Academic Dermatology & Skin Cancer Institute (ADSCI) dermatologist and micrographic surgeon in the downtown Chicago loop area specialized and certified in Mohs surgery for skin cancer. Also offers fat transfer injections.

• Advanced Aesthetics Surgery & Laser Center provides a variety of surgical and non-surgical treatments for women and men.

• Advanced Eye Care offering eye exams, glasses, and lenses, and services in Russian, Ukrainian, Polish, Spanish, and Lithuanian.

• Advanced Reproductive Center fertility services provided by John P. Holden, MD.

• Advanced Spine and Sports Care headed by Dr. Jason Ingham. Providers of sports injury rehabilitation, natural health programs, and spinal manipulation treatments. Located in the Lincoln Park neighborhood of Chicago.

• Advocate Health Care consumer health and wellness information and interactive features with health professionals.

• Aesthetic Surgery Chicago Chicago, Illinois, clinic offering an array of plastic surgery procedures. Site features photographs, descriptions, and information.

• Aesthetic Surgery, Ltd. plastic and cosmetic surgery by Dr. Harry Springer.

• Agha, Arif H. MD a urologist in Chicago Western suburbs. His special interests include impotence, prostate diseases,stone disease and incontinence.

• Alexian Brothers Medical Center

• Alexian Brothers Northwest Mental Health Center offers emergency psychiatric services, women's mental health programs, outpatient psychotherapy, and vocational rehabilitation

• Alpha Counseling Center, Inc. offers DUI program and stress management, group therapy, personal coaching, and relaxation training services.

• Alternative Behavior Treatment Centers juvenile sex offender treatment organization providing residential and outpatient services.

• Amaral, Michael MD, FACS specialist in spine surgury and back pain management. Features explanation of conditions and treatments.

• American Dental Company provides a dentist locator for Chicago, New York, and Seattle.

• AmeriVein Systems surgeons specializing in the treatment of vein diseases.

• Andrews, Bruce specializes in care based on the teachings of Dr. Ida P. Rolf.

• Anixter Center provides a wide range of services to persons with disabilities in the Chicago metropolitan area.

• Arumugam, Subramaniam MD providing a range of plastic and aesthetic surgery services. Other locations in Hazel Crest and Palos Heights.

• Atrium Dental Care dental care for adults and children from Nancy J. Schueler, DDS.