Extension Health NYC

Extension Health NYC is located at 160 7th Ave S, New York, NY 10014 — in the West Village neighborhood of Manhattan. The clinic is easily accessible by subway (1/2/3 trains at 14th St–7th Ave, or the A/C/E at 14th St–8th Ave) and is convenient for residents of Greenwich Village, Chelsea, SoHo, Tribeca, and Brooklyn.

Extension Health NYC offers four diagnostic services relevant to body composition and fitness: DEXA Body Composition Scan (measuring body fat %, lean muscle mass, visceral fat, and bone density), DEXA Bone Density Scan (focused on lumbar spine and hip for osteoporosis screening), VO2 Max testing (measuring cardiovascular fitness and training zones), and Resting Metabolic Rate (RMR) testing (measuring daily calorie burn at rest).

You can book a DEXA scan at Extension Health NYC directly online at extension.health/diagnostics/dexa-scan/. You can also call the clinic at (646) 931-1280 during business hours, Monday through Friday, 9:00 AM to 5:00 PM. Results are reviewed with the clinical team immediately after your scan.

Yes, Extension Health NYC accepts Health Savings Account (HSA) and Flexible Spending Account (FSA) payments for eligible services including DEXA scans and RMR testing. Credit cards and debit cards are also accepted. Contact the clinic at (646) 931-1280 to confirm your specific payment options.

A DEXA body composition scan at Extension Health NYC takes approximately 10 minutes for the scan itself, with a total appointment time of around 20–30 minutes including check-in and results review. A DEXA bone density scan takes about 20 minutes total. The clinical team reviews your results with you right after the scan — no waiting for a follow-up.

A DEXA body composition scan provides a full-body analysis of fat mass, lean muscle mass, visceral fat, and bone mineral density across your entire body — useful for tracking fitness and body recomposition progress. A DEXA bone density scan focuses specifically on the lumbar spine and left hip to screen for osteoporosis and assess fracture risk. Extension Health recommends combining both scans, especially for patients with a family history of osteopenia or osteoporosis.

A VO2 Max test at Extension Health NYC measures your maximal oxygen uptake — the gold-standard indicator of cardiovascular fitness. The test identifies your aerobic and anaerobic thresholds, heart rate training zones, and caloric burn at each intensity level. NYC Marathon runners, cyclists, and triathletes use this data to train smarter and benchmark their fitness improvements over time.

An RMR (Resting Metabolic Rate) test at Extension Health NYC accurately measures how many calories your body burns at rest each day. This removes the guesswork from nutrition planning — particularly valuable for New Yorkers managing demanding schedules while working toward weight loss, muscle gain, or long-term health optimization. You'll receive macronutrient utilization data and personalized caloric targets.

DEXA scans at Extension Health NYC are extremely safe. The radiation dose is minimal — roughly equivalent to a few hours of natural background radiation, and far less than a standard chest X-ray. The scan is painless, non-invasive, and takes only 10 minutes. It is safe for most adults, though not typically recommended during pregnancy.

Extension Health is a full longevity clinic staffed by board-certified physicians including Dr. Jonathann Kuo and Dr. James Salway. Unlike standalone scan centers, Extension Health pairs diagnostics (DEXA, VO2 Max, RMR, comprehensive bloodwork) with personalized clinical review — your results are interpreted by the clinical team immediately after your scan, not mailed to you later.