Start here: the federal and shared systems
The order of operations
1
NPPES
Type 2 NPI for the PC (requires the EIN); confirm each dentist’s existing Type 1.
2
CAQH
Build or update the profile, upload documents, authorize every target payer, attest.
3
State Medicaid, if you take it
Agency enrollment, plus every dental benefit administrator (DBA) in your service area.
4
Commercial dental carriers
Contract, then credential, then EDI/ERA/EFT. Delta first in most markets, and per state.
5
Medicare, only for crossover work
PECOS 855 forms, and DMEPOS enrollment if you dispense sleep appliances. See Enroll in Medicare.
Delta Dental: start with the member company for each state
There is no national Delta contract. Delta Dental is 39 independent member companies, each contracting and credentialing separately for its own service area. Enroll with the member company for each state where a PC operates; a ten-state group has up to ten separate Delta relationships, each with its own fee schedules, participation agreement, and credentialing platform (some member companies use DDS Enroll, others DentalXChange, others their own process). Start at the Delta Dental join page, which routes by state. Decide per network as well: Premier and PPO are separate participation decisions with different fee schedules. See the Delta Dental profile.Commercial dental carriers
Dental credentialing is separate from medical, even at the same brand; a carrier’s medical network confers no dental participation.
Medicaid dental benefit administrators
State agency enrollment may not complete every required step. Depending on the state’s delivery model, a provider may also need a plan or administrator contract, credentialing, affiliation, or transaction enrollment. Assignments change at reprocurement, so verify the current process on the state’s Medicaid dental program page.Government programs
State Medicaid index
Each state runs its own enrollment portal. The reliable route:1
Start at Medicaid.gov's state overview
medicaid.gov/state-overviews links to each state agency.
2
Find the state's provider enrollment portal
Terminology varies by state and may appear as “provider enrollment,” “provider services,” or a vendor-branded portal.
3
Identify every dental plan in your service area
A state with FFS plus two dental administrators may require several separate steps, each with its own portal, fee schedule, and preauthorization rules. See Enroll in state Medicaid.
Clearinghouse payer lists: the current source for IDs
Payer IDs are clearinghouse-specific. Always use your clearinghouse’s list, and confirm the dental (837D) payer ID rather than assuming the medical one carries over.