The credentialing clock, 100 days in
Bluebird signed the LOI on day 0 and closes on day 102. Because the applications went out at LOI, close day looks like this rather than like a standing start:
Bluebird’s PC already held contracts for its first location. Some payers confirmed in writing that it only needed to add the new location and link the provider. Others required a new application. See Enroll with dental payers and Credential new dentists for the payer-specific workflow.
The rule: use the billing authority you actually have
Here is the most important operational rule in the acquisition: a claim must accurately identify the billing entity, rendering provider, location, and participation status authorized for that date of service. A purchase agreement cannot bind a payer or create billing authority. There is no universal post-closing “grace period,” but an equity deal may retain the same entity and TIN, and a payer-approved assignment, change-of-ownership, or transition process may authorize a different result. Bluebird records each payer’s written answer in the closing matrix.2 Pending rows do not have one default answer. Before Bluebird bills out of network, holds a claim, schedules the patient, or changes cost sharing, it confirms the group contract, plan rules, state law, any federal-program requirements, the expected effective date, patient disclosures, and timely-filing deadline. Routine cost-sharing waivers can create separate federal-program risk. The options and their limits are covered in Handle credentialing delays. One near-miss worth naming: locum tenens does not rescue this. The 2024 ADA claim form added fields to report a temporary substitute dentist, and whether a payer honors substitute-dentist billing is contract-by-contract, but locum status never authorizes a new owner to bill as the seller.3Medicaid: the second queue
About 8% of the practice’s collections are Medicaid, administered through the state’s dental benefit administrator (DBA). Medicaid dental enrollment is state- and delivery-model-specific. Bluebird confirms the state’s change-of-ownership, screening, disclosure, identifier, and effective-date requirements and separately confirms any managed-care or DBA contracting steps.4 It does not submit a Medicaid claim until the applicable program and plan requirements authorize that billing entity, provider, location, and date of service. See Enroll in Medicaid.Records custody
The agreement allocates lawful custody and access to existing records under the governing state’s ownership, retention, transfer, practice-closure, and patient-notice rules and HIPAA. Bluebird does not treat records as ordinary sale assets or assume title automatically follows the DSO-PC split. The transition plan specifies who answers patient requests, who retains access for pre-closing claims and liabilities, the export format, and the applicable retention period.5The AR tail: map authority and responsibility
Date of service is a key allocation field, but payer and program rules determine the authorized biller and payee. The purchase agreement then allocates servicing, proceeds, refunds, appeals, recoupments, and cooperation without attempting to bind the payer:- Pre-close dates of service: identify the authorized billing entity and payer contract, then allocate tail servicing, records access, receipts, refunds, and recoupments.
- Post-close dates of service: use only the entity, provider, location, identifiers, and participation status authorized for that date.
Day-one banking
Money has to land correctly from the first patient:- The new location’s payer and patient receipts flow to the account authorized for the enrolled billing provider and permitted under state law, payer terms, merchant agreements, and any approved transition mechanics.
- EFT and ERA enrollments for the PC’s TIN were filed as each payer contract became effective, so remittances arrive electronically rather than as paper checks to a dead lockbox. See Set up EDI, ERA, and EFT.
- The card terminal at the front desk is re-pointed on day one to the merchant-settlement account authorized for the care provider.
- Dr. Ellis’s old accounts stay open only as long as the written AR-tail and payer arrangements require, with receipts reconciled to the correct date of service and liability allocation.
Close-week checklist
- Purchase agreement signed; funds flowed; asset allocation documented
- Payer status table current; every pending row has a written interim-billing and effective-date answer
- First week of claims audited against the authorized entity, provider, location, identifiers, and status for each date of service
- Medicaid and managed-care change, enrollment, disclosure, and credentialing steps tracked to written authorization
- Records custodianship documented; patient notification per state rule
- AR tail process running; credit-balance allocation confirmed
- Banking, EFT/ERA, and card settlement re-pointed to each authorized receiving account
Next
Step 4: Integrate the practice
The first 90 days: PMS conversion, team retention, patient communication, and hygiene recall.
Sources
- PPO Advisors, navigating insurance credentialing during a practice transition; ADS Transitions, insurance credentialing.
- Aetna, provider education: demographic and TIN changes (PDF); Delta Dental, dentist FAQs; CMS, NPI FAQs; HHS OIG, Fraud & Abuse Laws (routine cost-sharing-waiver risk in federal programs).
- ADA, 2024 claim form completion instructions (PDF) (locum tenens reporting fields).
- NCTracks, change of ownership FAQs; TMHP, PEMS CHOW process.
- ADA, what to do with patient records when selling a practice; Michigan Dental Association, record retention after an acquisition.