Peninsula Doctor
A Menlo Park concierge practice built around three family medicine physicians, founded by Dr. Ian Kroes. Its longevity care line adds genetic testing, body analysis and a comprehensive fitness assessment on top of primary care. Two registered dieticians and two fitness trainers work alongside the doctors, and nutrition patients are matched to the specialist who fits their goals.
The care team
Every clinician the operator publishes by name, with their role exactly as the operator states it.

Dr. Ian Kroes
Founder, Family Medicine Physician

Dr. Judy Kim
Family Medicine Physician

Dr. David Hiroshima
Family Medicine Physician

Dr. Clyde Wilson
Specialist, Nutrition and Metabolic Science

Dana McCabe, RDN
Wellness Specialist & Registered Dietician, RDN

Erika Deshmukh
Wellness Specialist & Registered Dietician

Yuhui Chen
Wellness Specialist & Fitness Trainer

Josué Figueroa
Wellness Specialist & Fitness Trainer
Everything Peninsula Doctor lists
3 tests and services across 4 kinds of care
Whole-body baseline, Genetics & biological age and Strength, fitness & body composition.
Genetics, inherited risk & biological age
Labs & biomarkers- Genetic & genomic testing
- Reads DNA for inherited risk and drug response.
Fitness, strength & body-composition assessment
Fitness & trackingNamed as a kind of care, without a specific test.
Lifestyle & performance planning
Lifestyle & programs- Health & nutrition coaching
- Ongoing behavior, nutrition and training guidance.
Programs & care formats
Lifestyle & programs- Longevity membership
- Ongoing physician care with labs, reviews and a plan, billed annually/monthly.
In the clinic's own words, not yet matched to a category we can compare across clinics.
What the clinic publishes
Prices may change. Confirm inclusions and current fees directly with the clinic.
Practical information
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