Is this medical malpractice?

I had my first prenatal visit on May 19th during my visit I had a pelvic exam and blood work done. I have been calling for my test results and asked for my results to be uploaded to my patient portal, but I’m being ignored for some reason results are no where to be found after I was told they would be uploaded. I got a $500 bill from LabCorp and I’ve decided to ignore paying since the drs office still hasn’t given me my results.
I went back 2 weeks after my first visit for an ultrasound and never got the results from that either. From what I understand my dr is supposed to do a report tell me my due date how far along I am etc. I also have health problems so it’s important to get good care.
I found a new doctor to go to and they want the medical records from the first dr I went to. Every time I call to request my records they don’t answer the phone. What can I do and has this happened to anybody else before? I want to report the medical center for neglect!
Is this medical malpractice?
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