Greylock Medical
Family Medicine • Williamstown, MA
About
Clinic Type
Family Medicine
Address
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Phone
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Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
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Insurance & Payment
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Languages Spoken
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Photos
What Patients Say
Overall sentiment across review platforms: very positive
- localitybiz.com: 5 out of 5 stars (Consistently positive reviews noted across sample feedback (all highlighted reviews were 5 stars))
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.
"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.comSynthesized 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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