AMSURG

AmSurg (AmSurg Corp.) is an American healthcare services company best known for operating ambulatory surgery centers (ASCs) — outpatient facilities where procedures such as endoscopy, ophthalmology, orthopedic and gastrointestinal surgeries are performed outside a traditional hospital. The company was founded in the early 1990s and grew through a strategy of partnering with physician groups, acquiring or developing surgery centers, and consolidating a highly fragmented outpatient-surgery market. It became one of the largest ASC operators in the United States, with a network of centers across many states. Beyond surgery centers, AmSurg expanded into physician-outsourcing services, notably anesthesia and radiology, and for a period also operated a large network of hospital-based physician services. The company was publicly traded on NASDAQ under the ticker AMSG before it merged with Envision Healthcare Holdings in 2016, creating a combined physician-services and outpatient-care group that was subsequently taken private by an investor group led by KKR. After the merger, AmSurg's ambulatory surgery business continued to operate as a brand within Envision Healthcare, which became one of the largest US providers of physician-led healthcare services. AmSurg's positioning is that of a physician-alignment partner: it typically owns or jointly owns centers with surgeons and anesthesiologists, providing capital, management, billing and regulatory support while physicians retain clinical leadership. Its customers are physicians, health systems and payers seeking lower-cost, high-quality outpatient alternatives to hospital-based procedures. The brand is a business-to-business healthcare operator rather than a consumer-facing name, and its identity is tied to the ASC industry's long shift of surgical volume out of hospitals. Note: the supplied evidence snippets concern an unrelated media/politics story and contain no information about AmSurg; this dossier is written from well-established public facts about the company and should be verified against primary sources.

AmSurg was founded in the early 1990s as a dedicated operator of ambulatory surgery centers, a then-emerging segment of US healthcare in which surgeons perform procedures in freestanding, lower-cost facilities rather than hospitals. Its model was to acquire, develop and jointly own centers with practicing physicians, giving doctors an equity stake while AmSurg supplied management, capital and administrative infrastructure. Through the 1990s and 2000s the company assembled a nationwide network of centers, focusing on high-volume specialties such as gastroenterology/endoscopy, ophthalmology and orthopedics. AmSurg became a publicly traded company on NASDAQ under the ticker AMSG. In the 2010s it diversified beyond surgery centers into physician-outsourcing services, acquiring anesthesia and radiology practices and building a substantial hospital-based physician services business. This shifted the company's profile from a pure ASC operator toward a broader physician-services group. A major turning point came in 2016, when AmSurg merged with Envision Healthcare Holdings, combining AmSurg's surgery-center and physician-outsourcing businesses with Envision's emergency-medicine and hospitalist services. The combined company, Envision Healthcare, was subsequently acquired and taken private by an investor group led by KKR. Within Envision, the ambulatory surgery operations continued under the AmSurg name as the group's surgery-center division. In the years after the merger, Envision Healthcare — and by extension its AmSurg surgery-center business — operated in a challenging environment for outsourced physician services, marked by payer disputes, balance-sheet pressure and a major restructuring. AmSurg's brand identity nonetheless remains tied to its original role: a physician-partnered consolidator of outpatient surgery in the United States.

• 2016

  AmSurg merges with Envision Healthcare Holdings, forming Envision Healthcare.

• 1992

  AmSurg founded as an ambulatory surgery center operator in the United States.

• AmSurg becomes a publicly traded company on NASDAQ under ticker AMSG.

• AmSurg expands into physician-outsourcing services, including anesthesia and radiology.

• Envision Healthcare, including AmSurg's surgery-center business, is taken private by an investor group led by KKR.

Physician-aligned operator of outpatient surgery centers offering lower-cost alternatives to hospital-based surgery.

• Ambulatory surgery centers (ASCs)

• Gastroenterology and endoscopy services

• Ophthalmology surgical services

• Orthopedic surgical services

• Anesthesia and radiology physician services

• 2026-08-13

  AMSURG acquires Capital Surgery Center in Baton Rouge[3]AMSURG收购巴吞鲁日Capital Surgery Centerwbrz.com

  Reported: 2026-10-14

  AMSURG acquired Capital Surgery Center, expanding its presence in the Baton Rouge market. Financial details were not disclosed. The center is AMSURG's second location in Baton Rouge and eighth in Louisiana.

1. 1AmSurg (company information)en.wikipedia.org
2. 2Envision Healthcareen.wikipedia.org
3. 3AMSURG收购巴吞鲁日Capital Surgery Centerwbrz.com