About Us
Care With a Purpose
Lifeline Mobile was founded on a simple belief: every patient deserves exceptional primary care — especially those who find it hardest to leave home.
Our Mission
Bringing the Clinic to You
At Lifeline Mobile, we believe that quality healthcare should never be limited by mobility, transportation, or the stress of a waiting room.
Mobile primary care isn't just convenient — it's often better care.
Compassion First
Every patient is treated with dignity, patience, and genuine concern for their wellbeing.
Unhurried Visits
We don't rush.
Whole-Person Care
We look beyond symptoms.
Community Rooted
We are proud members of the St. Lucie County community.
Meet Your Providers
Our Clinical Team
Our providers bring years of primary care experience and a deep commitment to serving seniors and homebound patients throughout St. Lucie County.
Brittany Lain, ARNP-FNP-C
Family Nurse Practitioner | Lifeline Mobile LLC
Brittany Lain, ARNP-FNP-C, is a compassionate and dedicated Family Nurse Practitioner committed to providing high-quality, patient-centered healthcare.
Brittany began her healthcare career at Indian River State College, where she earned her CNA, LPN, and RN credentials. Brittany continued her education and obtained her Nurse Practitioner/Masters degree at Chamberlain University.
Compassionate. Convenient. Connected.
Brian Lain, DO
Internal Medicine Physician | Lifeline Mobile LLC
Dr. Brian Lain is board certified in Internal Medicine and brings 11 years of experience to his Hospitalist/internal medicine practice.
Dr. Lain completed his undergraduate education at University of Michigan and earned his medical degree at Nova Southeastern University College of Osteopathic Medicine. Completed Internal Medicine Residency at Michigan State University.
Experienced. Attentive. Patient-centered.
Samuel Espinal, DO
Family Medicine Physician | Lifeline Mobile LLC
Dr. Samuel Espinal is a board-certified family medicine physician.
Dr. Samuel Espinal is board-certified in family medicine and brings 10 years of experience to his hospitalist and family medicine practice. Dr. Espinal earned his undergraduate degree from Florida International University and his medical degree from Nova Southeastern University College of Osteopathic Medicine. He is bilingual in English and Spanish
Skilled. Dedicated. Community-focused.
Why Mobile Care
Why Home-Based Primary Care Matters
Mobile primary care removes barriers entirely.
No Transportation Needed
We eliminate that barrier completely.
Reduced Infection Risk
Home visits mean no exposure to other sick patients.
Better Health Outcomes
Fewer hospitalizations, better medication adherence.
More Time With Your Doctor
Not just a rushed 10-minute appointment.
Familiar, Comfortable Setting
Patients are more relaxed in their own home.
Family Can Be Present
Family members can participate in appointments.
Serving St. Lucie County
We provide mobile primary care throughout St. Lucie County, Florida.
Ready to Experience Care at Home?
We're accepting new patients throughout St. Lucie County.