Biggest Physician Groups in USA <\/strong><\/h2>\n\n\n\n1. How many physician groups are there in the US?<\/strong>
As of 2026, Ampliz reports 155,354 physician groups<\/strong> across the U.S., including both multi-specialty and single-specialty groups.<\/p>\n\n\n\n2. What are the largest physician groups in the U.S.?<\/strong>
Some of the largest physician groups include Kaiser Permanente Medical Group<\/strong>, Sutter Health<\/strong>, HCA Physicians<\/strong>, and Mount Sinai Physicians Group<\/strong>.<\/p>\n\n\n\n3. How can Ampliz help me find physician group data by state?<\/strong>
Ampliz provides a state-wise physician group database<\/strong> with verified contact details, specialties, and leadership information to optimize marketing and outreach.<\/p>\n\n\n\n4. Why is physician group data important for healthcare marketing?<\/strong>
Accurate data helps healthcare companies target decision-makers, improve personalization, and enhance conversion rates<\/strong> across medical practices.<\/p>\n\n\n\n5. Can I access contact emails and phone numbers of physician groups?<\/strong>
Yes, Ampliz offers verified contact information, including emails, direct dials, and executive details<\/strong>, for targeted and compliant outreach.<\/p>\n","protected":false},"excerpt":{"rendered":"Last updated on March 30th, 2026 As of 2026, there are 155,354 physician groups across the United States, representing a major portion of the country\u2019s healthcare delivery network. These groups include multi-specialty, single-specialty, and hospital-affiliated physician organizations that collectively influence patient care, referrals, and medical device purchases. If you\u2019re a healthcare marketer, pharmaceutical company, or medical technology provider, identifying the largest physician groups by state can dramatically improve your outreach accuracy and campaign ROI. Ampliz\u2019s comprehensive database enables you to access verified, compliant, and up-to-date physician group contact data to target the right decision-makers. We will explore how to identify the largest physician groups in US state and how to leverage tools like Ampliz Healthcare Sales Intelligence to find, connect with, and reach them for effective healthcare marketing campaigns. Why Target Physician Groups in US by State? Each US state has its own healthcare market dynamics, payer mix, and physician concentration. Targeting by state allows marketers to: For example, states like California, Texas, Florida, and New York have the highest number of large physician groups, with many housing over 500+ affiliated physicians per organization. Top States with the Largest Physician Groups in US Here\u2019s a quick look at some leading states and their physician group density: State Approx. Number of Large Physician Groups Notable Physician Groups California 11,772 Kaiser Permanente Medical Group, Sutter Health Texas 12,842 Baylor Scott & White Health, Texas Health Physicians Group Florida 13,342 Orlando Health Physician Associates, HCA Florida Physicians New York 10,602 Mount Sinai Physicians Group, NYU Langone Medical Associates Illinois 6,542 Northwestern Medical Group, Advocate Medical Group Pennsylvania 6,050 UPMC Physicians Group, Jefferson Health Medical Group Ohio 4,800 Cleveland Clinic Physicians, OhioHealth Group Georgia 5,270 Emory Healthcare, Piedmont Physicians Group North Carolina 4,320 Atrium Health, Novant Health Medical Group Massachusetts 3,321 Mass General Brigham, Beth Israel Lahey Health Data Source: Ampliz Healthcare Intelligence Platform, 2026. The Importance of Targeting Large Physician Groups Before diving into the methods for identifying and reaching the largest physician groups in USA, let’s first understand why targeting them is important for healthcare marketing: How to Find the Largest Physician Groups in USA By State To identify the largest physician groups in each state, you can take advantage of healthcare sales intelligence tools like Ampliz Healthcare Sales Intelligence. Ampliz provides comprehensive data on healthcare providers, including detailed information on physician groups, their specialties, and practice sizes across the U.S. Here’s how to use it: 1. Create a Targeted Search with Filters Ampliz allows you to customize your search using filters like: With these filters, you can easily generate lists of the largest physician groups based on your specific criteria. 2. Utilize Data Segmentation for Marketing Ampliz\u2019s segmentation tools can help you further refine your list by factors such as: 3. Research and Build Custom Lists Once you\u2019ve built your targeted list, you can conduct in-depth research on each group, examining their practice focus, patient demographic, and regional impact. This allows you to tailor your marketing messages and outreach strategies more effectively. Reaching the Largest Physician Groups for Healthcare Marketing After identifying the largest physician groups, the next step is crafting a strategic outreach campaign. Here\u2019s how to go about it: 1. Personalize Your Outreach Physician groups are often inundated with marketing pitches, so it\u2019s essential to stand out. Personalization is key. Use the data from Ampliz to understand the specific needs and challenges of each group and craft a message that speaks directly to them. Highlight: 2. Use Multi-Channel Outreach Effective marketing to physician groups requires a multi-channel approach: 3. Focus on Building Long-Term Relationships Physician groups are more likely to work with vendors they trust and have built relationships with. Rather than focusing solely on a one-time sale, focus on building long-term partnerships by providing value, offering consistent support, and maintaining open communication channels. 4. Offer Educational Content Physician groups often appreciate educational resources that can help them improve their practice. Webinars, whitepapers, case studies, and blog posts showcasing your expertise can position your company as a thought leader and trustworthy partner. List of Largest Physician Groups in USA By State We listing some of the biggest physician groups in the US, based on practice size, revenue, and influence. This is a sample and may vary depending on the specific metrics used. State Physician Group Number of Physicians Specialty Focus Location California Sutter Health 2,000+ Multi-Specialty Sacramento, CA Texas UT Southwestern Medical Group 1,500+ Multi-Specialty Dallas, TX Florida Florida Health Care Plans 1,200+ Family Medicine, Pediatrics Daytona Beach, FL New York Northwell Health 2,000+ Multi-Specialty New York, NY Illinois Advocate Health Care 1,400+ Multi-Specialty Chicago, IL Ohio Cleveland Clinic 3,000+ Cardiology, Oncology, Neurology Cleveland, OH Pennsylvania UPMC Physician Services 2,500+ Multi-Specialty Pittsburgh, PA Michigan Henry Ford Health 1,800+ Multi-Specialty Detroit, MI Georgia Emory Healthcare 1,600+ Multi-Specialty Atlanta, GA North Carolina Atrium Health 1,200+ Multi-Specialty Charlotte, NC Indiana Ascension Medical Group 4000+ Multi-Specialty Indiana Arizona Banner Health Network 3000+ – Arizona Kansas HCA Midwest Physicians 300+ Family Practice Overland Park, KS North Dakota Alaska Alaska Native Tribal Health Consortium 300+ Anchorage, AK, USA Arkansas Arkansas Health Group – – Little Rock Colorado Centura Health Physician Group – – Centennia Louisiana Louisiana Internal Medicine & Pediatric Associates – – Covington Note: The above list is based on available data and is not exhaustive. The numbers can change depending on the latest reports from healthcare organizations and physician directories. Conclusion The US healthcare system continues to evolve, with physician groups consolidating rapidly to improve patient care and efficiency. To stay competitive, marketers and vendors must align their outreach with the largest, most influential groups across states. With Ampliz\u2019s 155,354 strong physician group database, you can discover new opportunities, segment effectively, and maximize your marketing performance. \ud83d\udc49 Explore the full list of physician groups by state with Ampliz today and connect with the right healthcare professionals for your business. Whether you’re selling a product, offering a service, or looking to build a partnership, understanding the dynamics of large physician groups can help<\/p>\n","protected":false},"author":13,"featured_media":3485,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2009],"tags":[],"class_list":["post-3484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-us-physician-groups"],"_links":{"self":[{"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/posts\/3484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/comments?post=3484"}],"version-history":[{"count":1,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/posts\/3484\/revisions"}],"predecessor-version":[{"id":5121,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/posts\/3484\/revisions\/5121"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/media\/3485"}],"wp:attachment":[{"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/media?parent=3484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/categories?post=3484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ampliz.com\/resources\/wp-json\/wp\/v2\/tags?post=3484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}