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Cornerstone Medical Clinic clinic

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

  • Internal Medicine
  • Primary Care
  • Walk-in Appointments (calendly)
  • Patient-centered care
  • Healthcare navigation support
  • Timely access to care

Team

  • Dr. Waldo Dagan, MD - Founder/Physician

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

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."

- Birdeye

Synthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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