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Cornerstone Medical Clinic, Sumner

Cornerstone Medical Clinic

Primary Care • Sumner, WA

About

Cornerstone Medical Clinic is a primary care practice in Sumner, Washington, founded in 2010 and serving the Puyallup Valley and surrounding areas. Led by Dr. Waldo Dagan and nurse practitioner Ariana McDonald, the clinic offers internal medicine, women's health, chronic disease management, annual physicals, and minor surgery. The practice emphasizes accessible, coordinated care through partnerships with major health systems and uses electronic medical records for seamless care coordination.

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Clinic Type

Primary Care

Address

Sumner, Washington (heart of town; serves Puyallup Valley and surrounding areas)

Phone

206.839.7944

Email

blake@cornerstonemed.us

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.cornerstonemedwa.com/

Services Offered

—

Team

  • Dr. Waldo Dagan — Founder

Insurance & Payment

—

Languages Spoken

—

Social Media

FacebookInstagram

Photos

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What Patients Say

Overall sentiment across review platforms: positive

  • BirdEye (Local): 4.1/5 stars (47 reviews)
  • BestProsInTown: Not explicitly stated but generally positive sentiment (25 reviews)
  • Facebook: 90% recommendation rate (8 reviews)

Patients praise

  • Physician attentiveness and willingness to listen to patients
  • Competent and caring medical care provided by Dr. Dagan
  • Friendly and convenient local clinic atmosphere

Common complaints

  • Occasional complaints regarding front desk staff interactions
  • Some reports of difficulty maintaining consistent appointments

"Cornerstone Medical Clinic in Sumner, WA comes highly recommended for those seeking a primary care physician who listens and takes their time with patients."

— Nextdoor

"Patients praise Dr. Dagan and his staff for being courteous and competent."

— BestProsInTown

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

Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.

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