Gut & digestive health in Los Angeles
Investigate persistent gut symptoms with real testing.
Usually microbiome and stool testing, sometimes SIBO breath testing.
3 of the 5 clinics in our Los Angeles guide, each with the published services behind the claim.
LifeSpan Medicine
A Santa Monica practice on Wilshire Boulevard that has been doing preventive and functional medicine since 1992, long before anyone called it longevity. Dr. Chris Renna founded it and still leads the flagship program. The range is unusually wide for a concierge practice: full-body MRI, microbiome work, hormone and peptide protocols, plasmapheresis, and a regenerative sports-medicine arm doing Regenokine, BMAC, A2M and PRP injections for joints and spine. The Platinum program is the top of it, an annual longevity program capped at 75 clients that includes a functional brain MRI and cognitive-risk labs, and which you can only join if an existing client refers you. Nothing is priced anywhere on the site. The practice publishes a team on its own pages and the LifeSpanMD network publishes a different, larger one, and neither says who works in Santa Monica as opposed to Dallas or Miami.
Diagnostics include: Full-body MRI
Regenera Medical
A concierge functional medicine office on Wilshire in West Los Angeles, run by Dr. Elroy Vojdani, a USC Keck School of Medicine graduate and certified functional medicine practitioner. You come here when something chronic has not been explained: autoimmune disease, chronic inflammation and infections, gut symptoms, brain fog, fatigue after meals. Your first visit is a full hour of history with Dr. Vojdani or the nurse practitioner, then lab testing, then a plan built around supplements, nutrition and lifestyle, with medication if it is needed. There is a separate longevity track for people who feel fine and want a deeper look, listing early cancer detection, full body imaging, advanced lipid testing, cardiac imaging, biological age assessment and micronutrient testing, though the clinic does not say which scans or which tests those are. Nothing is billed to insurance and no fee is published anywhere on the site.
Sydenham Clinic Beverly Hills
A members-only concierge clinic on Bedford Drive in the Golden Triangle, run as one practice with two Texas sister sites. You get a dedicated primary care physician and a diagnostics stack that runs deep: full-body and brain MRI, AI-read cardiac CT, whole genome sequencing, epigenetic aging markers, oral and gut microbiome testing, and a liquid biopsy cancer screen. The framing is the Sydenham Method, seven pillars covering genomics, gut, sleep, hormones, nutrition, psychology and physiology, reviewed by a team that meets weekly on every member's case. Dr. Adam Brittain is named as Medical Director here, alongside a concierge physician and a clinical nutritionist. What you cannot find anywhere on the site is a price. Five membership programs are described in detail and not one carries a figure, so the cost of any of this is a conversation you have to start.
Diagnostics include: Hormone panel · Full-body MRI