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Family Medicine · Fremont, California

Welcome, Neighbor —
Your Health Is in Good Hands

Dr. Yamaguchi provides thoughtful, personalized care for patients of all ages in the heart of Fremont. From preventive screenings to managing ongoing conditions, we are here for you and your family — every step of the way.

Our Services
Dr. Yamaguchi's medical office interior

A Trusted Partner in Your Family's Health

Dr. Yamaguchi founded this practice with a simple belief: every patient deserves a physician who truly listens. Located on Mowry Avenue since 2010, our office has become a quiet, welcoming refuge for families across Fremont who want a doctor that knows them — not just their chart.

Whether you are coming in for an annual physical, a child's well-visit, or guidance on a chronic health concern, you will always leave our office feeling heard, informed, and supported.

15+
Years Serving Fremont
All
Ages Welcome
Walk-
Ins & Same-Day Available

Comprehensive Care for Every Stage of Life

From routine check-ups to specialized treatments, our services are designed to meet the full spectrum of your family's health needs under one roof.

Preventive Care & Annual Exams

Stay ahead of health concerns with thorough annual physicals, age-appropriate cancer screenings, immunizations, and lifestyle counseling tailored to your goals.

Family Medicine for All Ages

From newborn well-child visits through adolescent care and senior health management, we provide continuous, coordinated care for your entire household.

Chronic Disease Management

Diabetes, hypertension, asthma, thyroid conditions — we work closely with you to develop long-term plans that keep your health stable and your life on track.

Minor Procedures & Office Tests

Cutaneous biopsies, wart removal, joint injections, strep tests, urinalysis, and more — many services are available right here in our office, saving you a referral.

Acute Illness & Injury

Sore throats, sprains, infections, rashes — we offer same-day and walk-in appointments so you do not have to wait days to feel like yourself again.

Women's & Men's Health

Confidential, respectful care for concerns unique to women and men — including reproductive health screenings, hormone evaluations, and preventive counseling.

More Than a Clinic —
a Long-Term Health Partnership

We have built our practice around what matters most to you: accessibility, respect, and genuine clinical expertise.

01

Personal Attention, Not Rushed Visits

Appointments are scheduled with enough time for you to ask every question and discuss every concern without feeling hurried out the door.

02

Convenient Fremont Location

Easy to find on Mowry Avenue with ample parking, close to public transit, and accessible to patients from throughout the East Bay.

03

Many Insurances Accepted

We work with most major PPO and HMO plans. Call our office to confirm your insurance — we are happy to help you understand your coverage.

04

Same-Day & Walk-In Availability

Health issues do not wait. We reserve daily slots for urgent concerns so you can be seen the same day, whenever possible.

What Our Patients Say

We are honored by the trust our patients place in us. Here is a selection of feedback from members of our community.

“

Dr. Yamaguchi is the first doctor who has ever made me feel like my concerns were taken seriously. She listens, explains things clearly, and never makes you feel rushed. Our whole family sees her now.

— A Loyal Patient
Fremont resident since 2015
“

I was nervous about finding a new primary care physician after moving to the area. From my very first visit, I felt completely at ease. The staff is warm and the office runs smoothly.

— A New Patient
Joined the practice in 2023
“

Managing my diabetes never felt so straightforward. Dr. Yamaguchi takes the time to review every lab, adjust my plan thoughtfully, and celebrate the small wins with me. I actually look forward to my appointments.

— A Long-Term Patient
Patient for over eight years

We Accept Most Major Plans

We are in-network with many leading health insurance providers. If you do not see your plan listed, please call us — we are always happy to verify your coverage.

Blue Cross Blue Shield
Aetna
Cigna
United Healthcare
Kaiser Permanente
Medicare

Hours & Location

We are conveniently located in central Fremont. Walk-ins are welcome during business hours, but scheduling ahead is recommended.

Office Hours

Monday9:00 AM – 5:00 PM
Tuesday9:00 AM – 5:00 PM
Wednesday9:00 AM – 5:00 PM
Thursday9:00 AM – 5:00 PM
Friday9:00 AM – 4:00 PM
SaturdayClosed
SundayClosed

Address
2243 Mowry Ave
Fremont, CA 94538-1630

After-Hours
For urgent concerns outside office hours, please call our main line and follow the after-hours instructions.

Ready to Experience Better Care?

Whether you are a new patient to the area or looking to switch primary care providers, we would be honored to welcome you.

Call (151) 079-29084
Is this your business?This is my business