Why does a provider need to register their Medicare NPIs with Medi-Cal?
Registering NPIs used to bill Medicare will allow Medi-Cal to process your Medi-Cal crossover claims. If you obtain and bill Medicare with NPIs not “known” to Medi-Cal, your crossover claims will not be processed correctly. If a provider is not a facility licensed by the California Department of Public Health (CDPH), they must submit the Medi-Cal Supplemental Changes (DHCS 6209) form to enroll NPIs used to bill Medicare. For providers licensed by the CDPH, subpart NPIs may be registered in accordance with the instruction provided in the NPI Registration for Facilities article. • If a provider registered multiple Medi-Cal legacy numbers with one NPI and then decides to register separate NPIs for each Medi-Cal legacy provider number, does the provider use the old PINs with the new NPIs? A: No. When a provider obtains new NPIs for each of the Medi-Cal legacy numbers, a new record with a new PIN will be created for each of the NPIs. Providers will receive a letter notifying them of the PIN
