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Greylock Medical Clinic | Greylock Medical

Family MedicineWilliamstown, MA

★★★★★5.0/55 reviews across 1 platforms

Ratings by platform

  • localitybiz.com: 5 out of 5 stars (Consistently positive reviews noted across sample feedback (all highlighted reviews were 5 stars))

What patients say

Patients praise

  • Professional and personable staff and physician (specifically PA Jeff Kellogg)
  • Efficient, organized, and quick service for physicals (DOT, CDL, school)
  • Friendly, clean, and welcoming office environment
  • Convenient scheduling and accessibility (including Saturday hours)
  • Personalized, patient-centered care

Common complaints

  • No specific complaints or negative experiences identified in the available public reviews.

In patients' words

"Jeff provides high quality care. He provides a personal touch that is missing from most health care providers."

Robert Putnam via localitybiz.com

"Greylock Medical got us in and seen in just a few days. Clean facility, kind and courteous staff, layed back (but highly professional) atmosphere and free coffee."

Reviewer via localitybiz.com

"Dr Jeffrey Kellogg very professional but also very personable. A great experience all around! I highly recommend Greylock Medical Clinic."

Gary Clark via localitybiz.com

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6].

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