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Ian Kroes, MD

Family Medicine Physician

Dr. Ian Kroes is a board-certified Family Medicine Physician and the Founder of Peninsula Doctor, a concierge medical practice in Menlo Park, California. With over 20 years of professional experience, Dr. Kroes specializes in Primary Care, which encompasses care for the entire family. Before he founded Peninsula Doctor, Dr. Kroes served families for over a decade at the Palo Alto Medical Foundation Clinic. In addition, Dr. Kroes has a deep interest in longevity care that focuses on ways to optimize patients' health. This includes attention to nutrition, fitness, and preventative testing. He remains dedicated to the simple and powerful conviction that doctors should know their patients, and that the finest, most effective healthcare unfolds as a lifelong conversation.

Education

  • M.D., Stanford University
  • B.S. Applied Physics, University of California, Berkeley

Certifications & Organizations

  • Member, American Academy of Family Physicians
  • Member, American Society for Nutrition
  • Lecturer, Family Medicine Physician, Stanford University School of Medicine
  • Holds admitting privileges at Stanford, El Camino, and Sequoia Hospitals, and at the Lucile Packard Children’s Hospital in Palo Alto

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Co-authored Articles (16)

How to

Pass a Drug Test on Short Notice

If you need to pass a drug test on short notice, the first thing you should know is that testing technology has advanced to the point where classic ways to fake a test, like putting some salt in your urine sample or usin...

How to Treat HPV Genital Warts in Men

A medical guide to identifying genital warts and choosing the most effective treatment Genital warts are small, raised skin lesions that can look like the top of a cauliflower. Found in both sexes, males can develop wart...

How to Get Rid of a Cough Quickly: Natural Options and Prevention Tips

A comprehensive list of proven solutions for an intense cough A lingering cough can make you feel absolutely miserable, and you probably want to get rid of it as fast as you can. That’s totally reasonable—it’s neve...

How to

Tie a Hospital Gown

Hospital gowns provide easy access for healthcare providers to examine you, run tests, or check your vitals. If you’ve never put on a hospital gown before or you’re encountering a new style of gown, it can be a littl...

How to Take a Sitz Bath in the Bathtub & Using a Kit

Learn the uses & benefits of sitz baths A sitz bath is a shallow bath of warm water that you sit in to ease pain or irritation to the anus, genitals, or perineum. Your doctor might recommend that you take a sitz bath if ...

How to Stop Getting Vertigo: Treatment Options & Mythbusting

Alleviate the symptoms and frequency of vertigo Vertigo is the sensation that the world is spinning or moving even though you are stationary. The dizziness associated with vertigo leads to nausea, balance problems, compr...

How to

Heal Nose Sores

Most people have experienced uncomfortable nose sores. Sores may be caused by allergies, inflammation, exposure to a dry climate, or irritation from wiping your nose, or they may result from a viral infection (also calle...

How to

Prepare for a Night of Drinking

Going out for a night of drinking can mean some great times with friends. If you are not prepared, however, it can also lead to poor choices, a hangover, or even worse. To get ready for a night out, remember the three P�...

What Does Greening Out Mean?

A guide to understanding and handling a green out While talking with friends or scrolling online, you might have heard people mention greening out. This sounds a lot like blacking out from alcohol, but what does it reall...

How to

Apply Moleskin

Soft on one side and adhesive on the other, Moleskin is a universally appraised product most often used for preventing and protecting blisters, rashes and chafing but also for basic repairs and sound reduction. Many hike...

How to

Unclog a Syringe

It can be really frustrating to deal with a clogged syringe and regular cleaning doesn’t always help. If possible, throw used syringes away and use a new one each time. Reusing syringes can lead to infections. However,...

What to Do If You’ve Been Roofied (Plus Signs That Your Drink Was Spiked)

Steps to take after you’ve been drugged for a healthy recoveryWhen you’re partying with friends and having a good time, the last thing you want to worry about is someone slipping something into your drink. But unfort...

The Best Tips & Tricks for Walking Up Stairs With Crutches

If you're using crutches due to an injury, you may be wondering how to go up and down stairs with them. The right way to use stairs while on crutches depends on whether the stairs have a railing or not. If you're going u...

How to

Wash Newborn Hair

If you have a newborn with a full head of hair or just a few locks, learn how to wash and care for their hair. Since newborn hair isn't very dirty, you'll only need to rinse it with water for the first bath. Once your ba...

How to

Read Drug Test Results

It’s very important that the results of a drug test are interpreted correctly. Fortunately, test results are actually very easy to read. To read urine test results on the spot, insert the testing card or strip into a u...

9 Reasons Why Hospitals Are Kept So Cold

Cool temperatures can reduce bacteria, increase comfort, & more When visiting or staying in a hospital, you may have noticed that the rooms are kept pretty cold. There’s a good reason for hospitals being so chilly, as...