Company lists · Data refreshed September 2026
Top 25 Outpatient surgery centers based in the United States
RevenueBase identified 828 outpatient surgery centers headquartered in the United States as of September 2026 and tracks 11,198 professional contacts across them, including 2,805 with verified work emails. Houston is the largest hub.
This list covers outpatient surgery centers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest outpatient surgery centers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,181 contacts → | ||||
Strong evidence “United Surgical Partners International (USPI) is the largest ambulatory surgery platform in the country and operates ambulatory surgery centers and surgical hospitals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 971 contacts → | ||||
Strong evidence “AMSURG is an independent leader in ambulatory surgery center services, operating a network of more than 250 surgery centers nationwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 175 contacts → | ||||
Indirect evidence “In 1946, physicians Clement R.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 116 contacts → | ||||
Strong evidence “EyeCare Services Partners (ESP) provides ownership and practice management of ophthalmologic, optometric and ambulatory surgery centers nationwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 115 contacts → | ||||
Indirect evidence “BHSH is among the nation’s best at providing orthopedic, spine and other surgical care.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 108 contacts → | ||||
Partial evidence “Our reputation for superior surgical care is based on our skilled independent physicians and surgeons, experienced staff, outstanding patient care, home-like comforts and enhanced…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 76 contacts → | ||||
Indirect evidence “Since 2004, Animas Surgical Hospital has been committed to providing Durango and Four Corners residents with a local choice in hospital facilities – one that is close, convenient…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 72 contacts → | ||||
Strong evidence “Copper Ridge Surgery Center was developed by local physicians in partnership with Munson Medical Center to create a state of the art outpatient surgical center.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 68 contacts → | ||||
Strong evidence “NueHealth is a leading provider of integrated ambulatory surgical care solutions, specializing in the development, management, and performance of ambulatory surgery centers (ASCs)…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 59 contacts → | ||||
Strong evidence “Gramercy Surgery Center (GSC) is a fully licensed multi-specialty Ambulatory Surgery Center (ASC) under the New York State Department of Health Article 28 regulations that…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 52 contacts → | ||||
Strong evidence “We are one of the largest independent operators of outpatient surgery centers in the U.S.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 49 contacts → | ||||
Indirect evidence “Prime MSO is a leading surgical facility management organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 48 contacts → | ||||
Strong evidence “We are a accredited Ambulatory Surgery Center (ASC) providing multi-specialty outpatient surgical services to the Triangle (Raleigh, Durham, Chapel Hill) and surrounding areas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 contacts → | ||||
Strong evidence “Mississippi Valley Surgery Center opened its doors in 1996, supported by a small group of local physicians with the goal of providing a convenient and patient-centered facility…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 47 contacts → | ||||
Strong evidence “Fremont Surgery Center is a hospital & health care company based out of 39350 Civic Center Dr, Fremont, California, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 44 contacts → | ||||
Indirect evidence “Our objective is to expand community access to value-based healthcare service alternatives within a broad range of specialties.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 38 contacts → | ||||
Strong evidence “Bend Surgery Center is one of the nation's largest and most modern ambulatory care facilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Strong evidence “Abington Surgical Center was one of the pioneers of outpatient surgery in Pennsylvania in 1989 when a group of physicians believed there was a better way to deliver surgical…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 38 contacts → | ||||
Indirect evidence “Located in West Orange, NJ, Pleasantdale Ambulatory Care (PAC) is an expansive, state-of-the-art facility, with over square feet encompassing three operating rooms, two procedure…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Partial evidence “Since Island Eye Surgicenter’s mission has been to provide excellence in surgical eye care, and it remains a “Center of Excellence.” The physicians of Island Eye are some of the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Strong evidence “Outpatient Services East (OSE) is a multi-specialty surgery center with a proven record of providing quality care and cost savings since inception in 1985.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Strong evidence “Allied Physicians Surgery Center is a physician-owned, multi-specialty ambulatory surgery center founded in February in South Bend, IN.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Strong evidence “The First Hill Surgery Center is an ambulatory surgery center (ASC) operated as a joint venture between The Polyclinic and Swedish Medical Center and managed by The Polyclinic.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Strong evidence “Founded in 2002, Yellowstone Surgery Center is owned and operated jointly by 50 independent physicians and SCL/Intermountain Health.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 29 contacts → | ||||
Strong evidence “Atlantic Eye is an Ophthalmology practice and Ambulatory Surgery Center with four locations in Monmouth County, New Jersey, United States: Eatontown, Little Silver, Holmdel, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: outpatient surgery centers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names outpatient surgery centers.
- Partial evidence
- Its own public description names part of outpatient surgery centers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name outpatient surgery centers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 828 outpatient surgery centers based in the United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,805 reachable decision-makers.
Free signup · no credit card
Outpatient surgery centers based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 828 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among outpatient surgery centers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “outpatient surgery centers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names outpatient surgery centers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among outpatient surgery centers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,805 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names outpatient surgery centers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many outpatient surgery centers are there based in the United States?
RevenueBase identified 828 outpatient surgery centers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
United Surgical Partners International, INC, headquartered in Dallas, tops this list with the largest team on record.
Which city has the most outpatient surgery centers?
Houston leads with 14 headquartered companies, followed by Dallas (12) and New York (12).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,805 verified decision-maker contacts tracked across these 828 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 828 outpatient surgery centers based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Outpatient surgery centers by geography
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Outpatient surgery centers based in Australia
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States