Years ago I signed up as a new patient at the CHA in Malden. A week later I tore my Achilles (though I didn't realize that's what it was at the time). I spent 3 months trying to get them to see my sooner so they could look at my pulled calf muscle. By the time I finally got them to see me, the tear had retracted too far and it hurt the repair prospects.

A couple years later I hit my shoulder snowboarding and it didn't improve a couple weeks later. They wouldn't let me come in to the office because of COVID and only offered me a televisit, which is useless for a physical I section of my shoulder pain. That eventually healed on its own. A few months ago I had extreme digestive issues and pain, and tried to get in. They told me I was no longer considered a patient because I hadn't been in to see them in too long, and it would be 4+ months before I could get an appointment as a "new" patient reminder: I tried to go in previously and they wouldn't let me. This time I went to urgent care and ended up getting emergency surgery for an abscess.

On the other hand, the surgeon I had in the Cambridge location did a great job on my Achilles repair given how long it was between the rear and the diagnosis. The physical therapist I saw at the Malden location afterwards was also great.

Tldr: in my experience, their primary care is worthless and never has appointments.