Cardinal Health to Acquire Solaris Health
August 13, 2025
Cardinal Health has entered into a definitive agreement to acquire Solaris Health, a leading urology management services organization, from Lee Equity Partners and Solaris Health physician owners. The Specialty Alliance (Cardinal Health’s multi-specialty MSO platform) will add Solaris Health’s more than 750 providers and 250+ practice locations, with Cardinal Health funding the deal with approximately $1.9 billion in cash and new debt and owning about 75% of The Specialty Alliance post-close.
- Buyers
- Cardinal Health, The Specialty Alliance
- Targets
- Solaris Health
- Sellers
- Lee Equity Partners, Solaris Health physician owners
- Platforms
- The Specialty Alliance
- Industry
- Healthcare Services
- Location
- United States
- Transaction Type
- Buyout
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Solaris Health Affiliates Urology Associates
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Solaris Health Holdings announced that Urology Associates (east central Indiana urology practice) has joined Solaris as an affiliate practice and will operate as a division of The Urology Group, Cincinnati. The affiliation adds nine providers who care for over 15,000 unique patients annually; terms were not disclosed and Solaris is backed by financial partner Lee Equity Partners.
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Solaris Health Affiliates Advanced Urology Institute
March 2, 2022
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Solaris Health Holdings announced that Advanced Urology Institute (AUI), a leading Florida urology practice headquartered in Oxford, FL, has joined Solaris as an affiliate practice. The affiliation adds 105 providers and more than 600 combined providers, clinical and front-office staff to AUI's footprint and expands Solaris' national urology platform; terms were not disclosed.
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Solaris Health Acquires Anne Arundel Urology (affiliate)
December 20, 2021
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Solaris Health, a national urology platform backed by Lee Equity Partners, announced that Anne Arundel Urology of Annapolis, Maryland has joined Solaris as an affiliate practice. Terms were not disclosed; the practice brings 28 providers across five sites and cares for over 44,000 unique patients annually, expanding Solaris' presence in Maryland.
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Solaris Health (Lee Equity) Acquires Michigan Institute of Urology
November 5, 2021
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Solaris Health, a Lee Equity Partners-backed national urology platform, acquired Michigan Institute of Urology (MIU) and closed the transaction on November 5, 2021. MIU — a 19-office, ~60-provider urology practice serving southeastern Michigan — joined Solaris to expand the platform’s scale and clinical capabilities; terms were not disclosed.
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Solaris Health Adds Associated Urological Specialists to National Urology Platform
March 2, 2021
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Solaris Health Holdings, a PE-backed national urology platform supported by Lee Equity Partners, announced that Chicago-based Associated Urological Specialists (AUS) has joined as an affiliated practice. Terms were not disclosed; the addition expands Solaris' national footprint as the platform now aligns approximately 262 providers and handles roughly 887,000 patient encounters annually across more than 111 sites.
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Solaris Health Adds MidLantic Urology to National Urology Platform
January 12, 2021
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Solaris Health, a partnership formed by Integrated Medical Professionals and The Urology Group and supported by Lee Equity Partners, has added The Centers for Advanced Urology, LLP (MidLantic Urology) to its Solaris platform. The transaction expands Solaris' national footprint, creating the nation's largest independent urological services provider and broadening Solaris' clinical scale across multiple states.
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