Internal medicine is the branch of medicine that deals with treating the whole patient. An internal medicine physician, also called an internist, can treat many illnesses and conditions, and is skilled in treating a patient who has several illnesses or disorders at the same time. This internist, who can be a primary care physician, emphasizes disease prevention and wellness, but can treat problems of the eyes, ears, skin, nervous system and reproductive organs, along with mental health or substance abuse issues.

The internal medicine physician can also treat cancer or diseases of the heart, blood, kidneys, joints, and digestive, respiratory and vascular systems, while concentrating on the wellness of the patient as a whole.

Physicians in this specialty treat patients suffering from numerous diseases and illnesses, but some of the most common are Emphysema, Broncho-Esophagology, Bronchitis, Pneumonia, Osteoarthritis , Hyper / Hypoglycemia, cystic fibrosis, Diabetes, Asthma, pectus excavatum, osteoporosis, Macular Degeneration, cancer, infection, Autism, Congestive heart failure, Herpes, Hypertension, Heart Attack, and Anemia.

Once properly diagnosed, practitioners can perform numerous procedures on patients including Lithotripsy, Endoscopic retrograde cholangiopancreatography (ERCP, dialysis, angioplasty, mechanical ventilation, endoscopy, cardioversion, Endoscopic retrograde cholangiopancreatography (ERCP), cardiac ablation, and intra-aortic balloon pump.

To diagnose patients with possible illnesses and diseases, specialists will often perform one of many tests including FAA-Flight Physicial, physicial / check up, Bone density test, dialysis, physicial examination, Computed Axial Tomography (CT or CAT Scan), Magnetic Resonance Imaging (MRI), ultrasound, x-ray, biopsy, Blood Test, Electrocardiogram (ECG or EKG), Upper GI (Barium Swallow), electrolyte test, Lower GI (Barium Enema), stool test, pH probe test, and microbiological culture.

Doctor density varies by specialty and location. Hawaii has 710 practicing internal medicine doctors. Broken out by city, internal medicine doctor density in Aiea is 43, in Eleele is 2, in Ewa Beach is 28, in Hana is 2, in Hickam Afb is 3, in Hilo is 34, in Holualoa is 1, in Honolulu is 468, in Kahuku is 3, in Kahului is 19, in Kailua is 27, in Kailua Kona is 11, in Kalaheo is 3, in Kamuela is 3, in Kaneohe is 15, in Kapaa is 3, in Kapaau is 1, in Kapolei is 9, in Kaunakakai is 3, in Keaau is 1, in Kealakekua is 7, in Kihei is 6, in Kilauea is 3, in Kula is 1, in Lahaina is 13, in Lihue is 12, in Makawao is 8, in Mililani is 2, in Naalehu is 1, in Pahala is 1, in Pahoa is 1, in Pearl City is 4, in Pearl Harbor is 5, in Tripler Amc is 18, in Tripler Army Medical Center is 1, in Wahiawa is 13, in Waianae is 14, in Wailea is 2, in Wailuku is 42, in Waimea is 4, and in Waipahu is 18.

One of the more popular vacation destinations in the world, Hawaii’s lush tropical environment invites all to relax and enjoy the outdoors. Popular Hawaiian activities include snorkeling, scuba diving, surfing, biking to one of Hawaii’s volcanoes, or enjoying a helicopter or horseback ride. Learn about Hawaii’s natural history and culture by attending a luau and watching a traditional hula dance. Hawaii’s population is 1,275,194, and the capital city is Honolulu. Statehood was achieved in 1959, making Hawaii our 50th state. Tourism is Hawaii's largest source of outside income. Visit the Polynesian Cultural Center, experience history at Pearl Harbor, or take a walk on Waikiki Beach, the world’s most famous shoreline.

According to 2005 Census estimates, Hawaii has a population of 1,275,194. Of this population, 198,087 are under the age of 18 and 162,565 are at or above the age of 65.