
Cornerstone Medical Clinic
Internal Medicine • Sumner, WA
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Cornerstone Medical Clinic in Sumner, Washington provides internal medicine and primary care to patients in the Puyallup Valley and surrounding areas including Auburn, Lake Tapps-Bonney Lake, Buckley, Enumclaw, South Hill, Edgewood, and Milton. The clinic offers annual physicals, women's health, chronic disease management, acute outpatient care, and minor surgery, with convenient walk-in appointment scheduling and healthcare navigation support.
Services Offered
Team
Insurance & Payment
Not published.
Languages Spoken
Not published.
Current Offers
New patient welcome
FAQs
When was Cornerstone Medical Clinic founded?
October 30, 2009 (doors opened February 1, 2010)
Social Media
Photos
Photos published by Cornerstone Medical Clinic showing the internal medicine practice in Sumner, WA.






What Patients Say
Overall sentiment across review platforms: positive
- BestProsInTown, Birdeye: Generally positive feedback across review platforms (Approximately 25 to 47 reviews cited across different platforms)
Patients praise
- Attentive and knowledgeable doctors, particularly Dr. Dagan and Dr. Bains
- Staff described as courteous and competent (e.g., Mary, Sue, Blake)
- Doctors who listen and take time with patients
- Convenient, friendly environment
- Helpful for mental health concerns
Common complaints
- Occasional negative interactions with front desk staff
- Reports of difficulties scheduling follow-up appointments
"Patients praise Dr. Dagan and his staff for being courteous and competent. While some patients have had negative experiences with a specific staff member at the front desk, many others highlight the positive interactions they've had with the staff, particularly mentioning one employee named Mary who is described as sweet, kind, and a genuine asset."
- BestProsInTown"Dr. Dagan and his staff: Sue, Mary, and Blake are awesome. Dr. D goes out of his way to make sure my health and well being are number one."
- BirdeyeSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- [PDF] Iowa Department of Health and Human Services Vaccines for ... - Jun 30, 2026
- Harbin Clinic Sumner Family Medicine - Oct 15, 2025
- New clinic that blends primary and urgent care opens its doors in Cortez - The Durango Herald - Jan 2, 2026
- J.W. Wiseman Elementary to host walk-in clinic as part of Highpoint, Sumner partnership - Main Street Media of Tennessee - Mar 10, 2026
- Highpoint Health Breaks Ground on School-Based Clinic in Portland - Hendersonville Chamber of Commerce - Mar 11, 2026
Information sourced from the clinic's website as of July 11, 2026.
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