About Us
HaloMD’s Executive Leadership Team brings together deep healthcare expertise, advanced technology stewardship, and forward-thinking strategy to shape the national landscape of Independent Dispute Resolution (IDR) under the No Surprises Act (NSA) and state balance billing laws. This team drives the data-enabled, technology-powered strategies that position HaloMD as the leading organization supporting out-of-network providers with sustainable, predictable financial outcomes through the IDR process.
Our Mission
To secure fair reimbursement and financial sustainability for healthcare providers through Independent Dispute Resolution, enabling them to continue delivering critical care to patients and communities.
Our Vision
“To ensure a future where healthcare providers are supported with fair reimbursement and communities have uninterrupted access to care, by leading the nation in Independent Dispute Resolution with unmatched expertise, data, and technology.”
Our Values
INTEGRITY
INTEGRITY
Upholding the highest standards in all our actions.
INNOVATION
INNOVATION
Continuously seeking and implementing advanced solutions.
EXCELLENCE
EXCELLENCE
Striving for superior outcomes in every case.
COLLABORATION
COLLABORATION
Working together with clients to achieve mutual success.
Leadership Team

President & Founder
Alla LaRoque
Learn More About Alla
Alla is the founder and strategic force behind HaloMD’s leadership in Independent Dispute Resolution under the No Surprises Act and state balance billing laws. Her deep expertise in out-of-network reimbursement and payor dynamics led to the creation of HaloMD. Alla continues to advance a technology-forward vision that elevates financial sustainability for providers navigating the NSA and complex state-level arbitration processes.

Chief Operating Officer
Megan Rausch
Learn More About Megan
Megan oversees operational performance across HaloMD’s entire IDR ecosystem, ensuring efficiency, accuracy, and scale as providers navigate the No Surprises Act and state dispute resolution processes. She aligns people, systems, and workflows to deliver consistent results across hundreds of thousands of IDR filings, driving operational innovation rooted in data, automation, and compliance.

Chief Financial Officer
Rohan Linton
Learn More About Rohan
Rohan oversees HaloMD’s financial strategy and enterprise planning. His work strengthens fiscal alignment as HaloMD scales services in response to increasing IDR activity under the No Surprises Act and regulatory shifts across state balance billing laws. Rohan ensures sound investment strategy and long-range financial stability to support the organization’s rapid growth.

Chief Information Officer
John Baldwin
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John leads HaloMD’s technology infrastructure, platform modernization, and system intelligence. His leadership ensures that HaloMD’s technology stack remains ahead of the rapidly evolving requirements of IDR under the No Surprises Act, state balance billing regulations, and multi-jurisdictional data environments. He drives innovation that enhances automation, system reliability, and advanced analytics.

Chief Officer of Strategic Partnerships & Acquisitions
Eric Slimmer
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Eric Slimmer leads strategic partnerships and acquisitions at HaloMD, expanding provider networks and building alliances that strengthen HaloMD’s ability to support sustainable reimbursement through IDR. He brings nearly two decades of experience driving both organic and inorganic growth across physician groups through acquisitions and operational leadership. A founder of Novum Orthopedic Partners, he recently helped lead its expansion and eventual merger with United Musculoskeletal Partners (UMP), where he served as Chief Development Officer and SVP of Physician Partnerships. Earlier in his career, Eric spent time at Radiology Partners supporting practice growth efforts. He is known for building high-trust partner ecosystems and executing disciplined growth strategies aligned with strong operational performance.

Chief Data Officer
Nirnay Patel
Learn More About Nirnay
Nirnay Patel is Chief Data Officer at HaloMD, leading enterprise data platform — including analytics, modeling, and intelligence pipelines that support IDR execution under the No Surprises Act and state balance billing laws. He oversees analytics, modeling, and data products that deliver operational precision and strategic insights.

Chief External Affairs Officer
Patrick Velliky
Learn More About Patrick
Patrick leads HaloMD’s policy strategy and external affairs, monitoring and shaping the evolving regulatory landscape surrounding the No Surprises Act and state balance billing regulations. He ensures HaloMD remains aligned with national and state-level rules governing Independent Dispute Resolution and provides thought leadership across policy conversations.

Chief Marketing Officer
Cindy Williams
Learn More About Cindy
Cindy drives HaloMD’s brand and market strategy, elevating the organization’s role as the national leader in Independent Dispute Resolution under the No Surprises Act and state balance billing laws. She leads go-to-market strategy, category creation, and thought leadership initiatives that reinforce HaloMD’s reputation for expertise, innovation, and technology-enabled performance.

Vice President, Human Resources
Tessa Owen
Learn More About Tessa
Tessa leads HaloMD’s talent strategy, supporting organizational growth as demand for IDR expertise expands with ongoing changes to the No Surprises Act and state balance billing laws. Her work strengthens culture, operational alignment, and workforce readiness across a rapidly scaling organization.

Vice President, Business Development
Jess Terrazas
Learn More About Jess
Jess leads national market expansion for HaloMD, connecting provider groups and partners with IDR solutions built for the complexities of the No Surprises Act and state-level balance billing environments. She drives commercial strategy across emergency medicine, anesthesia, radiology, and other out-of-network specialties.

General Counsel & Chief Compliance Officer
Justin Carangelo
Learn More About Justin
Justin Carangelo serves as General Counsel & Chief Compliance Officer at HaloMD, where he leads the legal, regulatory, and compliance functions for the company. Justin has a proven track record of successfully closing complex negotiations, guiding organizations through federal and state regulatory frameworks, and managing legal strategy for market expansions, high-stakes disputes, and critical enterprise deals. He brings more than 25 years of healthcare law experience, including senior legal leadership roles at Envision Healthcare and payor organizations. While at HCA Healthcare he twice led the implementation of HCA’s national network agreements with UnitedHealthcare. At HaloMD Justin is building durable legal frameworks that support compliant operations, precise execution, and rapid growth at scale.

Associate General Counsel
Brandon Huber
Learn More About Brandon
Brandon supports critical legal, contractual, and regulatory functions connected to IDR under the No Surprises Act and state balance billing laws. His work reinforces HaloMD’s commitment to structured compliance and operational transparency.

Vice President, Data Integration & Operations
Dan Heinmiller
Learn More About Dan
Dan leads the integration and optimization of HaloMD’s data systems, ensuring reliable connectivity and high-performance operations across the IDR workflow. His work strengthens the infrastructure needed to navigate diverse regulatory environments under the NSA and state balance billing frameworks.
