Who she is, in one paragraph.
Maria R. Lahti, MD is a board-certified cardiologist with over twenty years of clinical practice and a 27-year career in the United States Air Force, retiring at the rank of Colonel. She holds a Doctorate of Medicine from the Uniformed Services University of the Health Sciences (F. Edward Hébert School of Medicine, 2000), completed her Internal Medicine residency at Keesler Medical Center, and her Cardiovascular Disease fellowship through the San Antonio Uniformed Services Health Education Consortium at Wilford Hall Medical Center, Lackland AFB. She co-founded Conceptual Healthcare Corporation in 2025 alongside her husband Raymond, and serves as its Chief Medical Officer. She holds a permanent founder seat on the Board of Directors and is the company's clinical conscience.
What she does today.
- Owns the clinical floor for all fifteen Conceptual Health® clinics across cardiology, primary care, dental, vision, veterinary, and pharmacy.
- Co-author of the Master Equation eight-axis model with Raymond M. Lahti; signed the clinical methodology of every axis.
- Sits on the IRB Practice attestation review and the Patient Safety committee of the Board.
- Holds veto-equivalent on any patient-safety regression — a rare governance instrument written into the founders' charter. Has used it on three documented occasions; minutes in SEC filings.
- Final clinical sign-off on the device-attestation engine and on Provider AI hallucination-rate thresholds before any production deploy.
- Active clinical practice in cardiovascular disease and preventive cardiology; experienced in echocardiography and coagulation studies.
- Affiliated with Tallahassee Memorial HealthCare, Ascension Sacred Heart Pensacola, Ascension Sacred Heart Emerald Coast, HCA Florida Twin Cities Hospital, and HCA Florida Fort Walton-Destin Hospital.
- 5.0/5.0 patient rating across published platforms; many patients followed her from active duty into civilian practice.
27 years in uniform.
- Cardiologist on active duty across multiple stations including Eglin AFB, Lackland AFB, and Keesler AFB.
- Cared for active-duty service members, military families, and retirees through every stage of cardiovascular disease — many of whom continue under her care today.
- Trained, mentored, and signed off on a generation of military Internal Medicine and Cardiology fellows.
Where she trained.
Boards held.
- American Board of Internal Medicine — Internal Medicine, board certified.
- American Board of Internal Medicine — Cardiovascular Disease, board certified.
- Active state medical licensure · Florida.
On paper.
- Kostur, M.R., DeGeare, V.S. Interventional procedures in acute myocardial infarction.
- McGlasson, D.L., Kaczor, D.A., Krasuski, R.A., Campbell, C.L., Kostur, M.R., Adinaro, J.T. Effects of pre-analytical variables on the anti-activated factor X chromogenic assay when monitoring unfractionated heparin and low molecular weight heparin anticoagulation. Blood Coagulation & Fibrinolysis, 2005.
- Kostur, M., Storey, D. Nocardia farcinica osteomyelitis of the frontal bone five years after Nocardia brain abscess in an immunocompetent patient.
The other things.
Former professional organist. Lives in the Florida panhandle with her husband Raymond, their daughter, and their cat Coconut; has two grown children studying and working in Utah and Texas. The Lahti family has a long association with Destin, Florida and Panama City Beach, Florida — both of which appear in the operational decisions of the corporation in ways that are not coincidental.