Photo of Dr. Ian Kroes

Dr. Ian Kroes, MD

Concierge Family Medicine physician, Menlo Park, CA

Peninsula Doctor
5.0 (13 reviews)

Stanford-trained concierge family medicine physician who founded Peninsula Doctor in Menlo Park.

401 Burgess Drive, Suite A, Menlo Park, CA 94025
At a glance
Practice model
Concierge medicine
Board certified
American Board of Family Medicine
Languages
English, Spanish

Facts on this page last checked October 2026. How we check doctors

About Dr. Kroes

Dr. Kroes earned his medical degree at Stanford University School of Medicine in 1999. He did his internship in 2000 and finished his family medicine residency in 2002, both at Kaiser Permanente Los Angeles. He founded Peninsula Doctor, a concierge medical practice in Menlo Park.

Before that, he served families for over a decade at the Palo Alto Medical Foundation Clinic. He opened Peninsula Doctor to carry on his father's vision of personal, relational, multigenerational medicine. He speaks Spanish in addition to English.

Membership and fees

Membership at Peninsula Doctor includes same-day appointments, direct access to the physician, comprehensive annual physicals, and ongoing primary and preventive care.

It also includes in-office blood draws and vaccinations, specialist referrals and care coordination, nutrition and wellness support, and longevity diagnostics.

Education and credentials

Degree
MD
College
University of California, Berkeley
Medical school
Stanford University School of Medicine (1999)
Internship
Kaiser Permanente Los Angeles Family Medicine Residency (2000)
Residency
Family Medicine, Kaiser Permanente Los Angeles (2002)
Board certification
American Board of Family Medicine, Family Medicine (2002)
Professional memberships
American Academy of Family Physicians, American Society for Nutrition
NPI
1437263068

Hospital and practice affiliations

Founder, Peninsula Doctor
Previously at the Palo Alto Medical Foundation Clinic

Location

401 Burgess Drive, Suite A, Menlo Park, CA 94025
Peninsula Doctor practice page
Directions

Recognition and research

Teaching and research roles

Has lectured at the Stanford University School of Medicine

Publications

Has written articles on changes in medicine, including why so many doctors are leaving primary care and why concierge medicine is the medicine of the future

Patient reviews

5.0
13 reviews
5 star13
4 star0
3 star0
2 star0
1 star0
Write a review
Rated 5 out of 5

Great!

"Very professional care and consult."

FMDD UserApr 2024
Rated 5 out of 5

Awesome!

"Guided me in choosing the best treatment option."

FMDD UserMar 2024
Rated 5 out of 5

Amazing!

"Guided me in choosing the best treatment option."

FMDD UserFeb 2024
Rated 5 out of 5

I can reach a doctor 24/7.

"I can reach a doctor 24/7. When I'm traveling, they'll phone in prescriptions wherever I need them. Outstanding referrals when a specialist is required, as well as excellent proposals for alternative medicine. And because they are not reliant on insurance, I don't have to be victimized by "medicare" limitations."

FMDD UserDec 2021
Rated 5 out of 5

Peninsula Doctor offers a thorough, courteous, and helpful service.

"Peninsula Doctor offers a thorough, courteous, and helpful service. They stay up to date on the latest medical developments and critically examine them to choose when and how to apply them."

FMDD UserNov 2021
Rated 5 out of 5

His comments and help are always appreciated.

"Ian is always willing to help at a moment's notice. He patiently listens and counsels with compassion and understanding. My child was recently hurt in Tahoe. He gave us rapid advice and assisted us in determining the best line of action. His comments and help are always appreciated."

FMDD UserNov 2021

Questions patients ask

Does Dr. Kroes offer a membership?

Peninsula Doctor is a concierge medical practice. Membership includes same-day appointments and direct access to the physician.

Is Dr. Kroes board certified?

Yes. He is certified by the American Board of Family Medicine in Family Medicine, since 2002.

Where did Dr. Kroes train?

He earned his medical degree at Stanford University School of Medicine in 1999. He completed his residency in family medicine at Kaiser Permanente Los Angeles in 2002.

Where is Dr. Kroes's office?

Dr. Kroes founded Peninsula Doctor in Menlo Park.

Does Peninsula Doctor offer video visits or home visits?

Members can reach their physician by video, and the practice sees members at home when appropriate.

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