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Diefendorf Dirk R MD

3.9 (36 reviews)
Closed 8:30 am - 5:30 pm
Updated 1 month ago

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11 years ago

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10 years ago

Great doctor! my son had a sports injury and Dr. Diefendorf was super attentive and very aware of an athletes body and movements.

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11 years ago

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12 years ago

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11 years ago

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12 years ago

Helped my son with a very nasty leg fracture. Surgery and all. I would recomend him to everyone. Really knows his stuff.

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Ask the Community - Diefendorf Dirk R MD

Review Highlights - Diefendorf Dirk R MD

My advice to any potential patients, make sure you follow his pre-op and post-op instructions to the letter.

Mentioned in 2 reviews

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Yung Chen, MD

Yung Chen, MD

4.1(182 reviews)
0.5 mi

Terrible experience. This clinic operates like a factory, treating patients like numbers rather…read morethan people. I arrived 30 minutes early for my first appointment, hoping they might accommodate me, but they were understandably busy. However, once my scheduled appointment time arrived, I was forced to wait an additional hour before being seen. During this 1.5-hour ordeal, I was shuffled between various rooms for no apparent reason, all while watching at least 15 other patients being cycled through to see the same doctor. Even worse, patients who arrived long after me were seen first. When I questioned the doctor about the delay, he offered a standard apology, claiming there was an "emergency." To make matters worse, the facility looks nothing like the pictures online. The actual clinic is flimsy, poorly maintained, and offers zero privacy--you can easily overhear other patients' confidential conversations. The entire operation feels like a money-driven hustle. Save your time and go elsewhere. Avoid this place at all cost!

Dr. Chen has been the best Dr. I've met. I got into a car accident many years ago and had two…read morebulging disks and an annular tear and that leads to issues off and on with my lower back. I went to him for trigger point injections and acupuncture. I had sciatica which is terrible and he helped me improve with that as well. I also had issues with my hand and wrist for almost a year and nothing I was trying was working with other Dr.s. - I asked Dr Chen if he could help and we did acupuncture and PRP and within 3-4 weeks I was painting and playing basketball again! I have Celiacs too and now we're focusing on this. Appreciate what you do and I've recommend him to plenty of people and will continue to do so!

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Yung Chen, MD - IV Hydration Therapy: Rehydrate, Rejuvenate and Recharge at DrMedSpa.

IV Hydration Therapy: Rehydrate, Rejuvenate and Recharge at DrMedSpa.

Yung Chen, MD - We are beyond excited to announce the opening of DrMedSpa: a premiere medical spa in San Mateo!

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Yung Chen, MD - Come by our office to feel good from the inside out!

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High Amplitude Health Chiropractic - Dr. John Blenio's treatment room.

High Amplitude Health Chiropractic

4.9(114 reviews)
1.4 mi

I've been to a couple of chiropractors in the Bay Area so I usually come in a bit skeptical of the…read moreefficacy of treatment for upper back pain, but after my sister recommended Dr. Blenio I thought I'd give it another go. I'm glad I did - Dr. Blenio was very precise in his treatment plan and gave realistic expectations. He guided every motion and explained each movement and how to continuously work on some lasting issues that I have. I would definitely go back to his practice for general movement concerns, as well as Active Release Therapy in the future!

I've seen 10+ chiropractors across the Bay Area over the years, and John is hands down the best…read more I originally went in for low right back and hip pain, and during the course of treatment I also tweaked my left wrist working out. Over just a few sessions, John was able to treat everything effectively. What really stands out is that his treatments actually stick -- I'm not constantly chasing short-term relief like I've experienced elsewhere. John specializes in ART (Active Release Techniques), which my body responds extremely well to. He's also incredibly thoughtful in his approach: every session starts with a check-in where he reviews how you're feeling and tracks your progress so you actually know whether you're improving. Beyond being highly skilled, he's thorough, attentive, and clearly invested in long-term outcomes rather than quick fixes. Honestly, seeing John has been one of the best investments I've made in my body. I'll definitely continue seeing him and recommend him to anyone dealing with pain or looking for high-quality chiropractic care.

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High Amplitude Health Chiropractic - Patient preparing 30-minute appt. with Dr. John. Includes 25 minutes of Active Release, Stretch Therapy, Vibration, and Adjusting.

Patient preparing 30-minute appt. with Dr. John. Includes 25 minutes of Active Release, Stretch Therapy, Vibration, and Adjusting.

High Amplitude Health Chiropractic - We have a full exercise therapy room to rehab your muscles back to 100% health if necessary.

We have a full exercise therapy room to rehab your muscles back to 100% health if necessary.

High Amplitude Health Chiropractic - Our office.

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Our office.

Diefendorf Dirk R MD - sportsmed - Updated June 2026

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