Long COVID Specialist · Author · Patient Advocate
You deserve
real answers.
Dr. Robert Groysman has spent over five years treating Long COVID patients who were told nothing was wrong. His mechanism-based approach identifies the root causes driving your symptoms, so treatment can finally match the problem.
The Clinical Framework
Six mechanisms.
One unified approach.
Most Long COVID patients have symptoms driven by one or more of six biological mechanisms. Identifying which ones and treating them specifically is the difference between managing symptoms and addressing root causes.
Dysautonomia
Autonomic nervous system dysfunction disrupting heart rate, blood pressure, and basic bodily regulation.
Mitochondrial Dysfunction
Cellular energy failure causing profound fatigue, post-exertional malaise, and cognitive impairment.
Gut Dysbiosis & Leaky Gut
Disrupted gut microbiome driving systemic inflammation and multi-system symptom amplification.
MCAS & Histamine
Mast cell activation syndrome causing unpredictable multi-system reactions to ordinary triggers.
Endothelial Dysfunction
Microclots and vascular damage restricting oxygen delivery and driving systemic symptoms.
Hormone Imbalance
Metabolic dysfunction and hormonal disruption compounding fatigue, mood, and recovery.
The Complete Handbook Series
Seven volumes.
Six mechanisms.
One framework.
Written for patients and the clinicians who treat them. Each volume addresses a specific biological mechanism with the depth and clinical rigor that Long COVID patients have always deserved.
Explore the SeriesPatient Voices
Dr. Groysman is finally the first doctor out of 8 I have seen that is fixing this.
C.F. · February 2025
Robert Groysman, MD is a fantastic listener, and correctly identified the main issue.
K.G.D. · April 2025
Robert Groysman, MD. You listened and made a difference. I feel better than I have felt in a very long time.
M.C. · September 2025
I wish I found Dr Groysman sooner. I wasted thousands of dollars on holistic doctors.
K.W. · June 2025
I've seen the top Long COVID doctors in major US cities. Dr. Groysman is a pioneer.
D.H. · September 2024
About the Doctor
Dr. Robert Groysman, MD
Dr. Groysman is a board-certified anesthesiologist and pain medicine specialist who has spent over five years treating Long COVID at the COVID Institute in Plano, Texas. Through clinical observation and treating hundreds of patients, he identified six biological mechanisms that drive the majority of Long COVID symptoms.
His approach is rooted in a simple principle: look beyond the surface, find the true cause of suffering, and bring patients one step closer to recovery.
Read the full story →Community
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