Neonatal-perinatal medicine deals with the diseases and disorders of the newborn. Perinatal refers to the time just before and just after birth, while neonatal refers to the time after the baby is born. A neonatal-perinatal physician has special training, knowledge and skills to treat illness and premature birth of infants. The neonatal or perinatal physician specialist may be a pediatrician, and may consult with an obstetrician to help with a patient who has a higher-than-normal risk for pregnancy complications. The neonatal physician’s level of expertise is in patient care and improving the health of newborns.

Doctor density varies by specialty and location. California has 714 practicing neonatal-perinatal medicine doctors. Broken out by city, neonatal-perinatal medicine doctor density in Anaheim is 21, in Antioch is 1, in Apple Valley is 3, in Bakersfield is 8, in Baldwin Park is 6, in Bellflower is 8, in Belvedere is 1, in Berkeley is 3, in Beverly Hills is 3, in Burbank is 3, in Carlsbad is 1, in Chino is 1, in Chino Hills is 1, in Citrus Heights is 1, in Clovis is 2, in Corona is 2, in Costa Mesa is 1, in Daly City is 6, in Downey is 2, in El Monte is 1, in Escondido is 4, in Fairfield is 2, in Fontana is 9, in Fremont is 3, in Fresno is 6, in Fullerton is 4, in Garden Grove is 8, in Glendale is 10, in Hayward is 9, in Hemet is 1, in Hesperia is 1, in Huntington Beach is 1, in Indio is 1, in Inglewood is 6, in Irvine is 3, in Laguna Hills is 8, in Lake Forest is 1, in Lakewood is 1, in Lancaster is 3, in Lodi is 1, in Loma Linda is 25, in Long Beach is 20, in Los Angeles is 105, in Los Gatos is 1, in Lynwood is 4, in Madera is 12, in Mission Viejo is 4, in Modesto is 4, in Montebello is 3, in Moreno Valley is 6, in Mountain View is 3, in Napa is 2, in Newport Beach is 6, in Norwalk is 1, in Oakland is 30, in Oceanside is 6, in Ontario is 1, in Orange is 46, in Oxnard is 2, in Palmdale is 1, in Palo Alto is 58, in Pasadena is 7, in Pomona is 10, in Rancho Cucamonga is 2, in Redding is 4, in Redlands is 3, in Redwood City is 2, in Rialto is 1, in Riverside is 6, in Roseville is 1, in Sacramento is 27, in Salinas is 5, in San Bernardino is 10, in San Diego is 63, in San Francisco is 46, in San Jose is 27, in San Luis Obispo is 5, in San Mateo is 1, in Santa Ana is 7, in Santa Barbara is 3, in Santa Clara is 6, in Santa Maria is 2, in Santa Monica is 7, in Santa Rosa is 4, in Simi Valley is 1, in South Gate is 1, in Stockton is 4, in Temecula is 3, in Thousand Oaks is 1, in Torrance is 18, in Turlock is 1, in Upland is 2, in Vallejo is 4, in Victorville is 2, in Visalia is 2, in Walnut Creek is 5, in West Covina is 10, in West Hollywood is 14, in Whittier is 4, and in Yorba Linda is 1.

California’s population is 36,142,137, and it is America’s third largest and most populous state. It also claims the highest and lowest altitudes in the lower 48 states. The lowest point in the country, Death Valley, is also home to the nation’s highest recorded temperature, 134 degrees. Tourists flock to this state for its many outdoor activities and attractions, including Universal Studios, Disneyland, Rodeo Drive shopping, the Golden Gate Bridge in San Francisco, wine country tours, and California’s numerous beaches and parks. Los Angeles is the nation’s second largest city, but California’s capital is Sacramento. The giant sequoias in California’s forests are among the oldest living things in the world, and a redwood in the Redwood National Park is said to be the world’s tallest tree, at 365 feet. California achieved statehood in 1850, and was named the Golden State after the beginning of the Gold Rush in 1848.

According to 2005 Census estimates, California has a population of 36,132,147. Of this population, 9,308,563 are under the age of 18 and 3,827,038 are at or above the age of 65.