LifeSpan Medicine
LifeSpan Medicine is a concierge preventive and functional medicine practice in Santa Monica, in practice since 1992. Founder Dr. Chris Renna leads its Platinum program, an annual longevity program capped at 75 clients and joined by referral. Diagnostics run from full-body and brain MRI to early cancer detection, alongside hormone therapy. People come here for a whole-body baseline and early cancer screening.
The care team
Every clinician the operator publishes by name, with their role exactly as the operator states it.
LifeSpan Medicine runs three offices, Santa Monica, Dallas and Miami, and publishes its clinicians centrally rather than per office. No page assigns a clinician to Santa Monica. Two rosters exist and they do not match: the practice's own team page names these two of them, while the LifeSpanMD network page for the same practice names Dr. Chris Renna, Dr. Olivia Lesslar, Dr. Karen Koffler, Dr. Paris Whitney, Dr. Melissa Sundermann, Dr. Moshe Ben-Roohi and Dr. Mary Dohrmann. Only Dr. Renna and Dr. Ben-Roohi appear on both; ask who you would actually see at Wilshire Boulevard.
Across LifeSpan Medicine

Dr. Chris Renna
MD
Published qualificationsThe practice’s Platinum page describes the program as "led by world renowned longevity physician, Dr Chris Renna".

Dr. Moshe Ben-Roohi
M.D.
Published by LifeSpan Medicine at organisation level · source ↗
Care at LifeSpan Medicine
What people come here for, the kinds of care LifeSpan Medicine offers, and its specific tests and services.
What people come here for
Kinds of care
Tests and services
- Brain MRI with volumetrics
- Measures brain structure against your age group.
- Full-body MRI
- Scans the whole body for tumors and abnormalities before symptoms.
- Gut microbiome testing
- Profiles gut bacteria to guide digestive care.
- IV vitamin therapy
- Vitamin and fluid infusions marketed for energy and recovery.
- Menopause hormone therapy
- Estrogen/progesterone care for perimenopause and menopause.
- PRP injections
- Your own concentrated platelets injected for joints, skin or scalp.
- Peptide therapy
- Compounded peptides marketed for recovery, growth hormone and repair.
- Shockwave therapy
- Acoustic-wave treatment for ED and musculoskeletal pain.
- Therapeutic plasma exchange
- Filters and replaces blood plasma, marketed for longevity and “detox”.
More care this clinic lists, in its own words.
Practical information
Confirm anything time-sensitive directly with the clinic before your visit.
Similar clinics nearby
Selected based on location and overlapping tests and services.

Next Health, West Hollywood
Sunset Strip, West Hollywood
- IV therapy drips
- Vitract gut microbiome test

Health & Vitality Center
Wilshire Boulevard, Westside
Led by Dr. Shiva Lalezar, Founder and Medical Director
- GI Effect and Gut Zoomer
- Hormone Optimization & Pellet Therapy

Sydenham Clinic Beverly Hills
Beverly Hills, Golden Triangle
Led by Dr. Adam Brittain, Medical Director, Beverly Hills
- Full-body MRI
- Brain MRI
About this profile and its sources
6 sources
Everything on this page is what the clinic publishes about itself, gathered from the pages linked below and put in one place, in plain English. Where a fact comes from somewhere else, it is named beside that fact.