Lawyers for the actress, who is battling breast cancer, claim in a new court filing obtained by ABC News that her former account manager Kimberly Gabay, her former business manager Tia Boyd, and a third party provider retained by the firm placed "unauthorized calls" to the SAG Health Plan and that Gabay impersonated Doherty, allegedly attempting to obtain confidential medical information.
Doherty's lawyers filed the paperwork so the court would compel Tanner Mainstain to set a date for Gabay's deposition. They also accused Gabay and Boyd of criminal conduct.
"Ms. Doherty never authorized any of these individuals or Tanner Mainstain to falsely identify themselves as Ms. Doherty or to use Ms. Doherty's social security number to obtain access to Ms. Doherty's confidential medical information," the filing reads. "On the contrary, Ms. Doherty has since learned that Tanner Mainstain's managing partner, Brad Johnson upon learning of Ms. Doherty's claims, instructed Ms> Boyd and Ms. Gabay to obtain information regarding Ms. Doherty's claims for use in Tanner Mainstain's defense against the claims in this litigation."
A rep for Tanner Mainstain told the Hollywood Reporter that the firm hadn't yet seen the legal filing and was waiting to do so before commenting.
A lawyer for the firm has not responded to requests for comment by ABC News.
Doherty, 44, sued Tanner Mainstain in August, claiming that because the company allowed her health insurance to lapse in February, 2014, she was "completely uninsured" until the next enrollment period in 2015. Because of that, she did not visit a doctor regularly that year, and she was not diagnosed with cancer until March 2015, when doctors discovered "invasive breast cancer metastatic to at least one lymph node."
"Had she been insured and able to visit her doctor, the cancer could potentially have been stopped, thus obviating the need for the future treatment (mastectomy and chemotherapy) that [she] will likely have to suffer through now," the court filings read.