'Married to Medicine' Star Heavenly Kimes Accused of Trying to Mow Down Neighbor

Dr. Heavenly Kimes -- a dentist on Bravo's "Married to Medicine" -- tried to drill one of her neighbors ...with her Bentley, but Kimes says the guy attacked her ride with a hammer.

The altercation went down last week in Conyers, GA where Dr. Kimes and Grady Jarrett both live. According to Jarrett ... he was stopping traffic in front of his house while a bulldozer unloaded in his driveway, but when he put his hand up Kimes just kept going and "tried to run him over."

He admits hitting her window in anger as she passed him, but says the good doc came back for more ... attempting to hit him multiple times.

Dr. Kimes told cops it went down differently -- that she never saw Jarrett in the street, and was shocked when he hit her window and cussed at her. She says Jarrett also came at her with a hammer and hit the car.

Cops responded, but didn't see any damage to her Bentley ... and couldn't find any unbiased witnesses to back up Jarrett's version -- so, no arrests were made.