Your partner in providing trusted healthcare solutions.
We are Your Primary Care PLLC, doing business as Riverstone Medical Associates, the leading healthcare company in Missouri City, Texas. We provide telemedicine and house call services in Houston and nearby counties. Our objective is to deliver efficient and affordable medical care to the needy population of all age groups in a timely manner while striving to improve quality care outcomes.
Our Commitment
We Are Committed To
We are dedicated to delivering patient-centered healthcare with a focus on quality, compassion, and convenient access to care for individuals and families.
High Quality Care
We provide comprehensive, evidence-based primary care services focused on accurate diagnosis, effective treatment, and improved health outcomes for every patient we serve.
Compassionate Service
We treat every patient with dignity, respect, and understanding, ensuring personalized care that prioritizes comfort, trust, and long-term relationships.
Accessible, Convenient Appointments
From in-clinic visits to house calls and telemedicine services, we make healthcare accessible and convenient to fit your schedule and individual needs.
Patient-Centered Approach
We focus on listening carefully, understanding your health goals, and developing personalized care plans tailored to your lifestyle and medical history.
Medical Advices & Check Ups
Prompt Assistance
Trusted Medical Treatment
Medical Research Professionals
Meet With Our Providers
Vincent Alexander, FNP
Specialty: Family Nurse Practitioner
Degrees Held: MSN-FNP, Walden University BSN, MG University, India
Associations: AANP (2018)
Languages Spoken: English, Malayalam, Hindi, Tamil and Kannada.
Vincent Alexander completed his FNP Program from Walden University in 2018 and since then he is practicing primary care and telemedicine especially taking care of the medical needs of children, adults and the older population. He also has 18 years of health care experience in various fields including acute care, hospitals, home health and house call visits.
He believes in holistic approach and pays attention to patient needs and is deeply committed to providing quality, efficient, safe and affordable health care to patients and families.
Dr. Shebey Thomas, MD, is a board-certified Internal Medicine physician with over a decade of experience across diverse healthcare settings. He earned his MD from the University of Debrecen Medical School in Hungary and completed his residency in Internal Medicine at Robert Packer Hospital/Guthrie Clinic, Pennsylvania, where he received multiple awards, including Resident of the Year.
Dr. Thomas is the owner and Medical Director of Riverstone Medical Associates in Missouri City, Texas, where he specializes in providing primary and ambulatory care. With expertise in internal medicine, he is also actively involved in clinical research, teaching, and quality improvement projects. His contributions to medicine are complemented by published abstracts and recognition for professionalism and excellence.
Dr. Shebey Thomas, MD
Specialty: Internal Medicine
Degrees Held: MD - University of Debrecen Medical School and Health Science Centre, Hungary
Associations: American Board of Internal Medicine
Languages Spoken: English, Malayalam