About Us


Bridging the last mile to deliver in-home healthcare solutions

Estella Health was founded to better utilize this resource of talented providers to deliver care to patients in various in-home settings. Through our key partnerships with large hospital groups, physicians’ groups, and other network providers, we’re able to provide patients with a diverse clinical team for care delivery. This also supports the ability to coordinate efforts across multiple areas and quickly triage and dispatch appropriate resources to provide logistically sound, diverse, and convenient care.

Whether it is administering diagnostic testing, specimen collection, remote patient monitoring, or care management, Estella Health is bridging the gap between supply and demand and bringing care to the patient. We deploy our esteemed team of providers into familiar care settings – using their knowledge base to meet patients at home, work or live-in care settings like nursing homes or behavioral health facilities.

Rather than having patients travel to clinics or hospitals, the Estella Health team provides as much care as possible in the convenience and comfort of a person’s own home. Our team of laboratory and healthcare experts, in conjunction with a world-class laboratory in Boston, can meet the needs of a wide range of companies and facilities.



Streamline PAT Assessment Before Physician Visit Advanced Care at Home Recovery Phase
Reduce inpatient induced delirium Reduced sedentary complications Reduction in Readmissions Reduction in Mortality

What Makes Us Unique?

At Estella Health, we make the future of community healthcare turnkey – providing you with all the tools to bring care to the patient.


Healthcare at Home

Healthcare is delivered in the most comfortable and economical space for the patient.


Care Coordination

Ensure all healthcare stakeholders have access to the patient’s records and are kept up-to-date on the patient’s health status.


Augmented Care

Leverage at home care by clinicians with telehealth oversight that ensures the patient’s needs are met.


Healthcare Logistics

Utilize a vast network of providers to ensure the right team gets to the right patient in a timely manner.


Reporting and Follow Up with Your Designated Facility Contact


Clerical and Scheduling Support


Mobile Testing Services


In-Home Patient Care

Learn more about how the Estella Health team leverages advanced technologies to provide complete in-home patient care.


Meet The Team

The Estella Health team consists of experienced healthcare experts as well as reputed Boston laboratory technicians.

alex theo

Alexandre Theoharidis

Co-Founder President and CEO

Alex holds valuable knowledge of all aspects of the mobile healthcare and health IT industry including a mastery of logistics, demand analysis, forecasting resource needs, and contract negotiations. He specifically has a decade of experience with the clinical, financial, and operational aspects of the ambulance and medical transportation industry, including patient care, operations, billing, reimbursement, and workflow processes. Alex also demonstrated his unique ability to rapidly launch and execute successful programming in the form of mass COVID testing during the pandemic.

Alex founded Coastal Medical Transportation Systems (CMTS) in 2013, and he grew the company from three employees to a staff of 300 in less than five years. He was also the co-founder and CEO of Acuity Link, a comprehensive emergency and non-emergency medical transportation. communications and logistics management platform provider, which was sold to Central Logic in January of 2021. In 2022 CMTS announced the acquisition of Transformative Healthcare’s Massachusetts medical transportation arm, comprised of Fallon Ambulance Service and LifeLine Ambulance Service. This deal made CMTS one of the largest ambulance providers in the state by both geographic reach and number of patients served.

Brenden F. Hayden

Chief Operating Officer

Brenden F. Hayden is Estella Health’s Chief Operating Officer where he is responsible for overseeing the company’s day-to-day administrative and operational functions while supporting the company’s greater strategic planning around its mobile healthcare initiatives. Previously, Brenden has built and operated large mobile health programs with a focus on the delivery of high-quality out-of-hospital care for a variety of patient populations.  He is a respected leader with an impressive and lengthy career serving the EMS and healthcare industries having also worked at Steward Health Care System, Southcoast Health, and several EMS entities throughout Massachusetts. Brenden is also a frequent national speaker promoting Mobile Integrated Health (MIH) and innovative care delivery models. Brenden holds a Bachelor of Science in Health Care Management from Southern New Hampshire University and a post-graduate Masters Certificate in Human Resources and Organizational Planning from Villanova University.


Michael Pieretti

Chief Quality Officer

Michael currently serves as the Chief Quality Officer and Executive Vice President of Clinical Care. A paramedic by trade, Michael's focus on clinical quality, education, and operational scalability and resiliency ensures patients will receive effective care, wherever and whenever they need it.

Michael also co-founded Acuity Link with Alex Theoharidis, a comprehensive non-emergency medical transportation (NEMT) communications and logistics platform provider, which was acquired by Central Logic in January of 2021. Michael continued with Central Logic following the acquisition to lead their Intelligent Transport product until March of 2022. He has a sound background in application and software development including product lifecycle management, user story development, and product-market fit.


Doug Kangos

Chief Financial Officer

Doug brings more than 30 years of financial leadership experience to the team at CMTS. He spent the bulk of his career as a partner with PwC, one of the leading professional services networks in the world delivering assurance, tax and advisory services to early stage and private companies up to Global Fortune 500 companies. Doug then moved on to hold C-suite roles in nearly half a dozen organizations including Acuity Link  and Healthfleet, Inc. He holds a Bachelor’s degree in International Relations and Economics from Clark University and an MBA from Babson College.


Dr. Carl Sigsbee

Medical Director

Dr. Sigsbee has been in practice for more than 40 years and is an emergency medicine physician in Hyannis, MA and is affiliated with Cape Cod Hospital. He received his medical degree from the University of Massachusetts Medical School and did his residency at Children’s Hospital in San Francisco, CA.


Kevin Mont

Vice President of Mobile Healthcare

Kevin Mont has worked in the mobile healthcare environment for over 30 years. He has extensive expertise in contract negotiation and management, deployment modeling and resource allocation, and operational command and control. Recognizing the abilities of pre-hospital providers as pivotal providers, he oversaw the development and implementation of mobile testing in the early phases of 2020. This grew to over 100 crews per day covering all of Massachusetts from the New York border to the tip of Cape Cod. In coordination with the Commonwealth, he developed standing mass testing sites that averaged over 30,000 tests per week, ensuring safe, effective, and free testing was available to Massachusetts residents. As the pandemic evolved and vaccines became available, he oversaw the development and launch of two large-scale mass vaccination sites at Gillette Stadium and Reggie Lewis. This involved sourcing staff from a variety of agencies for both clinical and non-clinical roles ensuring over 100 staff members were available 7 days a week for the duration of clinics. The result was over 800,000 vaccines delivered in a six-month period. His abilities for rapid coordination, staff sourcing, and implementation were called on again to develop mobile testing for the State of Connecticut both at mass testing sites and school-based testing. He was able to source employees locally and develop a deployment model to ensure all tests were completed in and efficient and effective manner.


Steve Rose

Vice President of Business Development

Steve brings a unique background of diversified healthcare experience as both a clinician and sales manager that began over two decades ago. He earned a BS in Business Management from Indian Wesleyan University and has spent the past decade in the medical device industry as a successful sales manager. Most recently, Steve worked for a global medical device company where his product expertise, business acumen and experience engaging C-suite executives made him one of the company's most successful managers.

In his current role as VP of Strategic Partnerships with Coastal Medical Transportation Systems, Steve is tasked with contributing to the commercial success of the organization by supporting the development and implementation of data-driven practices designed to promote meaningful revenue and retention. In addition to overseeing the build out of the company's customer relationship management system, he leads an ongoing, collaborative effort to align internal teams with current and prospective partners.



115 Brook Road, Quincy Mass 02169