Cardiology at Walnut Creek Medical Center - Kaiser Permanente
Cardiology • Walnut Creek, CA
About
Cardiology at Walnut Creek Medical Center is a Kaiser Permanente cardiology department located at 1425 S Main St in Walnut Creek, CA. The department operates Monday through Friday from 8:30 a.m. to 5 p.m. and accepts patients by referral only.
Clinic Type
Cardiology
Address
1425 S Main St, Medical Office Building, 1st Floor, Walnut Creek, CA 94596
Phone
925-295-4050
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Opening Hours
Monday through Friday, 8:30 a.m. to 5 p.m.
Emergency Care
For emergencies call 911 (not specified in document); general assistance numbers provided (1-800-464-4000, TTY 711)
Services Offered
Insurance & Payment
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Information updated periodically; provider directory hard copy available by request (see Medicare/Medi-Cal notes)
Languages Spoken
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FAQs
The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change.
Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711(toll free). You can also call the Medical Board of California at 916-263-2382, or visit.
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- U.S. News & World Report (Cardiologists): 5 out of 5 (13 reviews)
- Healthgrades (Hospital): 68% (Not explicitly stated)
- Healthgrades (Dr. John Krouse, Cardiologist): 2.5 out of 5 (6 reviews)
- WebMD (Dr. Sushil Karmarkar, Cardiologist): 2 out of 5 (1 review)
Patients praise
- Professional and friendly staff members (nurses and physicians)
- Coordinated care within a single system
- Availability of diverse communication methods like e-visits and phone consultations
- Some physicians noted for being compassionate and informative
Common complaints
- Long wait times in emergency and intake areas
- Concerns regarding billing practices and surprise charges
- Occasional reports of unprofessional or dismissive doctor behavior
- Challenges with parking access
"Dr. Shiu is a very compassionate and caring doctor. He really listens to his patients..."
— Vitals.com review"Doctor Krouse was being very ruled and unprofessional... His unprofessional behavior put extra stress on his parents."
— Healthgrades review"Between the extreme wait times, doctors who don’t take patients seriously, unnecessary procedures, and constant surprise bills, this has been one of the worst healthcare experiences of my life."
— LocalityBiz reviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
Information sourced from the clinic's website as of July 11, 2026.
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