SACRAMENTO (CBS SF) — California Attorney General Xavier Becerra issued a warning to consumers Tuesday about some healthcare providers reportedly charging a COVID-19 fee that many people are not obligated to pay.

People enrolled in Medi-Cal, Denti-Cal and Medicare may not be charged this fee, which is purported to be for more frequent cleaning and disinfecting during the COVID-19 pandemic.

READ MORE: South Bay Traffic Alert: Overturned Big Rig Shuts Down Southbound Traffic On 101

Becerra asks that people who are charged a fee — and who are enrolled in Medi-Cal of Denti-Cal — to call (800) 541-5555 to report it to the California Department of Health Care Services Medi-Cal Member and Provider Helpline.

Those enrolled in Medicare who are charged the fee should call Medicare at (800) MEDICARE to report it.

READ MORE: 'I'm In'; Caitlyn Jenner Says She'll Challenge Gov. Gavin Newsom In Recall Election

Becerra also urged anyone enrolled in any of those three programs who has been charged a COVID-19 fee to file a complaint online with his office at oag.ca.gov/report.

People with private insurance may be subject to the fee but have the right to ask providers why they are being charged such a fee and what it covers, as well as the right to ask insurers if the provider can charge the fee under insurance plan rules.

Becerra said those with private insurance should also alert the California Department of Managed Health Care at (888) 466-2219 or visit their website at dmhc.ca.gov/fileacomplaint.aspx, or contact the California Department of Insurance at insurance.ca.gov/01-consumers/101-help or at (800) 927-4357.

MORE NEWS: 'Not For The Faint Of Heart'; Bay Area Real Estate Market Heating Up To Pre-Pandemic Levels

Patients enrolled in Tricare may not be charged a COVID-19 fee by in-network providers. It may only be appropriate to charge the fee when the patient does not inform the provider ahead of time that they have Tricare, and when the provider sends a written notice about a COVID fee to the patient before an appointment. For more information, people can visit tricare.mil/ContactUs/ReportFraudAbuse.