Here are some examples of the types of errors that might occur or
might simply be confusing to a patient.
Beneficiary claims he or she did not receive service.
The service was provided by a health care provider the beneficiary
may not have seen: laboratory, pathologist, anesthesiologist,
The beneficiary may have seen an employee of the physician (i.e.,
nurse practitioner, physician assistant, physical therapist) even though
the claim shows the service was provided by the physician.
This may be a billing or processing error where the Medicare number
has been miskeyed. The only way to tell this is to contact the office
that processed the claim so the original claim can be checked for an
Hospital inpatient bill: High or duplicate charges
This is often a billing or charging error by the hospital. Because
hospital inpatient claims are paid under the Diagnosis Related Group
(DRG) system, unreasonably high or duplicate charges do not usually
affect what Medicare allows or pays.
To research this type of issue, contact the hospital to clarify the
disputed charges, or contact the intermediary if the overcharging seems
extreme or unusual.
Billing for medical equipment that was returned
Billing for services or supplies different than received