U.S. Physician Groups Market Size, Share & Industry Analysis, By Number of Physicians (2 to 10, 11 to 24, 25 to 50, and More than 50), By Ownership (Physician-owned, Hospital-owned, and Others), By Specialty (Primary Care, Pediatrics, OB/GYN, Ophthalmology, Orthopedics, Psychiatry, Cardiology, Dermatology, and Others), By Payor (Public Health Insurance and Private Health按类型（单期和多专用）按地区（东北，东南，西南，中西部和西部）和国家预测，2025-2032，按类型（单期和多专业）进行保险/自付费用），