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Oxford Health Plans LLC provides health plans to employers and individuals in New York, New Jersey, and Connecticut. Founded in 1984, Oxford rose to prominence as a managed care provider in the tri-state area. In 2004, Oxford Health Plans was acquired by UnitedHealth Group (NYSE: UNH), one of the largest and most diversified health care companies in the United States. Today, Oxford Health Plans operate as a brand under UnitedHealthcare, continuing to offer a variety of health benefit plans, including traditional health maintenance organizations (HMOs), preferred provider organizations (PPOs), and consumer-directed health plans. While maintaining its strong regional brand recognition, its operations, technology, and network are integrated within the broader UnitedHealthcare and UnitedHealth Group structure.
Historically served as the primary administrative and operational center for Oxford Health Plans. Post-acquisition by UnitedHealth Group in 2004, the facility's role likely transitioned to support regional UnitedHealthcare operations or other UHG business functions. Specific current use is not widely publicized.
Specific notable architectural or facility highlights of the original Trumbull campus are not widely publicized, especially post-integration into UnitedHealth Group. It was a standard corporate office complex of its time, designed to support a large workforce.
Prior to its acquisition, Oxford Health Plans was recognized for its dynamic growth and innovative, albeit sometimes aggressive, approach in the managed care sector. As part of UnitedHealth Group, any remaining operations at legacy sites would align with UHG's corporate culture, which emphasizes integrity, compassion, relationships, innovation, and performance.
The Trumbull site was highly significant as the nerve center of Oxford Health Plans during its rise to prominence as a leading health insurer in the New York, New Jersey, and Connecticut tri-state area. It represented a major player in the evolving healthcare landscape of the 1990s and early 2000s.
While Oxford Health Plans historically focused on the US Northeast (New York, New Jersey, Connecticut), as an integral part of UnitedHealth Group, it benefits from a vast global presence. UnitedHealth Group operates in all 50 U.S. states and in more than 130 other countries. Its services are delivered through two distinct platforms: UnitedHealthcare, which provides health care coverage and benefits services, and Optum, which provides information and technology-enabled health services. This global network supports diverse health care needs worldwide, from insurance coverage to pharmacy services and health technology solutions.
48 Monroe Turnpike
Trumbull
CT
USA
Address: 125 Maiden Ln, New York, NY 10038 (Example of a UnitedHealthcare Office)
To manage and deliver UnitedHealthcare's health insurance products and services, including Oxford plans, to individuals, families, and businesses in the New York region.
Address: 194 Wood Ave S, Iselin, NJ 08830 (Example of a UnitedHealthcare Office)
Supports UnitedHealthcare's mission in New Jersey, providing access to care and health insurance solutions for the local population and employer groups.
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As of April 2025, Oxford Health Plans' leadership includes:
Oxford Health Plans has been backed by several prominent investors over the years, including:
UnitedHealth Group, as a large, dynamic organization, periodically experiences leadership changes. In the past year, notable transitions included retirements of long-serving executives, with responsibilities often being redistributed among the existing leadership team or filled by internal promotions. Specific major external hires at the topmost executive tier are announced via official channels.
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UnitedHealth Group (UHG), the parent company of Oxford Health Plans, utilizes common corporate email patterns. The most frequently observed formats for UHG employees are variations of first name and last name. Understanding these can be useful for professional outreach.
[first]_[last]@uhg.com or [first].[last]@uhg.com or [first_initial][last]@uhg.com
Format
jane_doe@uhg.com
Example
90%
Success rate
UnitedHealth Group Newsroom • 2024-04-16
UnitedHealth Group announced its first quarter 2024 financial results, highlighting continued growth in people served by UnitedHealthcare and Optum. The results also reflected the impact of the February cyberattack on its Change Healthcare subsidiary, detailing response efforts and financial effects. The company affirmed its commitment to supporting affected providers and patients....more
Reuters • 2024-03-18
UnitedHealth Group reported that medical claims and payment processing were beginning to resume more broadly, weeks after a major cyberattack on its Change Healthcare unit caused widespread disruptions across the U.S. healthcare system. The company outlined steps taken to restore services and provide financial assistance to affected healthcare providers....more
STAT News • 2024-02-22
A major cybersecurity issue at Change Healthcare, a unit of UnitedHealth Group's Optum, caused significant disruptions for pharmacies, hospitals, and clinics across the United States, affecting prescription processing and claims submissions. The incident highlighted the critical role of Change Healthcare in the U.S. health system infrastructure....more
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