DSO Buying Dental Practices. How the Acquisition Process Works

When a DSO approaches your practice, the process moves faster than most dentists expect. There is a defined playbook that DSO development teams follow, from the first outreach call to the day you sign. Knowing each step before you enter the process gives you more leverage, better preparation, and fewer surprises at the closing table.

This post covers the full acquisition process from initial contact through transition. It includes how valuations work, what due diligence actually examines, how deal terms are structured, and what happens to your practice once the deal closes.

For context on DSO types and ownership structures, see the dental DSO hub and what is a DSO in dental.

How DSOs Find Practices to Acquire

DSOs source acquisition targets through multiple channels. Some practices come through dental brokers or M&A advisors who represent sellers. Others come through direct outreach by DSO business development representatives who contact dentists directly by phone, email, or at dental conferences.

Referrals from already-affiliated dentists are a significant source for many DSOs. If a dentist in a DSO’s network knows a colleague considering a sale, internal referrals keep the deal off the open market and reduce the DSO’s acquisition cost. Some DSOs pay referral bonuses for practices that close through dentist introductions.

Data-driven prospecting has become standard at large DSOs. Development teams use demographic data, practice management software integrations, and commercial real estate analytics to identify practices in target markets before dentists have announced any interest in selling. If a DSO contacts you, it is rarely random.

Step 1: Initial Conversation and NDA

The first formal step in a DSO acquisition is signing a non-disclosure agreement (NDA). Before any financial details are shared, the DSO will ask you to sign an NDA that prevents you from sharing deal terms or discussions with competitors. NDAs in dental acquisitions are standard and typically favor the DSO, but they do not obligate you to proceed with the transaction.

After the NDA, you will share basic financial information: typically two to three years of profit and loss statements, a recent tax return, and a production report from your practice management software. This is enough for the DSO to calculate an initial valuation range and determine whether the practice fits their acquisition criteria.

How DSOs Value Dental Practices

DSO valuations for dental practices center on EBITDA: earnings before interest, taxes, depreciation, and amortization. The starting point is your practice’s net income, normalized to remove one-time expenses and add back discretionary owner expenses that would not continue under DSO ownership.

Common add-backs include excess owner compensation above what a replacement dentist would cost, personal vehicle expenses, owner health insurance, retirement plan contributions, and any one-time equipment purchases or leasehold improvements in the trailing period. The adjusted EBITDA is the number the DSO multiplies by their acquisition multiple to produce an offer price.

Multiples for general dentistry practices have typically ranged from 4x to 8x EBITDA. Practices with strong clinical revenue diversification, multiple producers, or above-average patient retention tend to receive higher multiples. Specialty practices command a premium: orthodontic and oral surgery practices have sold at 6x to 12x or higher because of stronger margins and more predictable revenue streams.

Other valuation factors include the age and condition of equipment, remaining lease term, concentration risk (how dependent the practice is on a single dentist’s production), and the local competitive environment. A practice where 80% of collections come from a single doctor retiring in 18 months will receive a lower multiple than a comparable practice with an associate already producing independently.

Step 2: Letter of Intent

If the initial numbers work, the DSO issues a letter of intent (LOI). The LOI is a non-binding document that outlines the proposed purchase price, deal structure, payment split between cash and rollover equity, proposed employment agreement terms, and an exclusivity period during which you agree not to negotiate with other buyers.

The exclusivity period in a dental LOI typically runs 60 to 90 days. During this window, you cannot have substantive acquisition conversations with competing DSOs. This is significant because it removes your ability to create competitive tension. Signing an LOI without having run at least an informal parallel process with one or two other DSOs often means accepting a lower price than the market would have produced.

Despite being non-binding on price, the LOI does establish moral and negotiating expectations. Major changes to deal terms after LOI signing create friction and can indicate bad faith from either party. Get the structure right at LOI stage, not at closing.

Step 3: Due Diligence

Due diligence is the DSO’s thorough review of your practice before closing. It covers financial, clinical, legal, operational, and compliance dimensions. The DSO sends a due diligence request list, which is typically long and detailed. Expect requests for the following categories of documents:

• Financial records: Three to five years of tax returns, P&L statements, balance sheets, accounts receivable aging reports, payer mix breakdown, and monthly production and collections reports.
• Patient and clinical data: Active patient count, new patient rate, hygiene reappointment rate, patient retention rate, and procedure mix by code. Expect the DSO to run their own analysis from a production export.
• Employment and HR records: Staff roster, tenure, compensation, benefits, and existing employment agreements. Turnover rates matter because high staff turnover signals operational issues that become the DSO’s problem post-acquisition.
• Legal and compliance records: Any active litigation, regulatory inquiries, insurance audits, or compliance issues. Malpractice claim history. DEA registration status. Lease agreements and any personal guarantees on the lease.
• Equipment and facility: Equipment list with age and condition, any service contracts, outstanding equipment loans or financing, facility condition, and any required capital expenditure in the near term.

Due diligence takes 30 to 60 days depending on the DSO’s team capacity and how quickly you provide documents. Practices with organized, up-to-date records move through due diligence faster and with fewer price-reduction requests. Surprises found during due diligence often become justifications for retrading: the DSO reducing the offer price after the LOI is signed.

Common Due Diligence Red Flags That Reduce Offers

Several issues consistently surface during due diligence and lead to price adjustments or deal complications.

• Payer concentration: A practice where 40% or more of revenue comes from a single insurance plan faces payer risk. If that plan renegotiates rates or terminates the relationship, revenue drops significantly.
• Old equipment: Equipment that will need replacement within 24 months gets factored into the price. DSOs run capital allocation models on acquisitions and price in near-term capex needs.
• Short lease term with no options: If your lease expires in 18 months and the landlord has not agreed to renew, the DSO faces real estate risk. Most DSOs require at least five years of remaining lease term or a commitment from the landlord before closing.
• Key-man dependence: If the practice’s collections would drop 30% the day you stop practicing there, the adjusted EBITDA used for valuation changes materially. Associates who are already producing reduce key-man risk significantly.
• Compliance issues: Open HIPAA violations, outstanding insurance audits, or billing irregularities create legal liability for the acquirer. These issues can delay or kill a deal.

Step 4: Purchase Agreement Negotiation

After due diligence, the DSO issues a draft purchase agreement. This document is typically long and complex, prepared by DSO legal counsel who drafts it in favor of the buyer. Key terms to review and negotiate include:

• Representations and warranties: Statements you make about the practice being accurate. Breaches of reps and warranties can expose you to clawbacks after closing.
• Indemnification caps and survival periods: How long you remain liable for pre-closing issues and what the maximum liability cap is. These are heavily negotiated.
• Escrow or holdback: Some deals require a portion of the purchase price (often 10%) to be held in escrow for 12 to 24 months as security against post-closing claims.
• Earnout provisions: Performance-based payments tied to the practice meeting revenue or production targets after closing. Earnouts can add value but are also a source of post-closing disputes.
• Working capital adjustments: Many deals include a mechanism to adjust the final price based on the practice’s accounts receivable and payable position at the time of closing.

Step 5: Employment Agreement

The employment agreement governs your relationship with the DSO after the sale closes. This is often where dentists face the sharpest transition. As the owner, you set the schedule, the protocols, the staff, and the culture. As an employee of a DSO, that authority transfers to the organization.

Employment agreements with DSOs typically run one to three years and include a base salary or production-based compensation, a schedule commitment (days per week, office hours), non-compete and non-solicitation provisions, and termination procedures with notice requirements and transition protocols.

Non-compete clauses deserve careful attention. DSO non-competes commonly restrict you from practicing within a 10 to 25-mile radius of the acquired practice for one to three years after your employment ends. In some markets, these restrictions can effectively prevent you from opening a new practice locally if the affiliation does not work out.

Step 6: Closing and Transition

Closing day involves signing final documents, receiving your initial cash payment, and executing the transition plan. The DSO typically brings an integration team that transitions billing, HR, IT systems, and supply chain management to the DSO’s platforms over a period of weeks to months.

Patient communication during transition is handled according to a defined protocol. Some DSOs send introduction letters to patients introducing the new affiliation. Others maintain the original practice name and minimize visible disruption to patient relationships.

Staff retention is a common concern and a genuine operational risk. DSO integration teams typically meet with existing staff before or shortly after closing to reassure them about employment continuity. Staff who leave immediately after a DSO acquisition represent real revenue risk because patient relationships often follow long-tenured hygienists and front-office staff.

Timeline from First Contact to Close

A typical DSO acquisition timeline runs three to six months from initial contact to closing day. Here is a general breakdown:

• Weeks 1 to 4: Initial conversations, NDA, preliminary financial review, and initial valuation discussion.
• Weeks 4 to 8: LOI issued, negotiated, and signed. Exclusivity period begins.
• Weeks 8 to 16: Full due diligence. Document collection, site visits, clinical and financial review.
• Weeks 16 to 22: Purchase agreement drafted, negotiated, and executed. Employment agreement finalized. Regulatory approvals (Medicaid provider transfers, DEA registration).
• Week 22 to 26: Closing. Transition begins.

Regulatory and licensing steps can extend timelines, particularly for practices with Medicaid billing or multiple locations. Deals that require state dental board approvals or certificate of need reviews can take longer.

Working With Advisors

Dentists who navigate DSO acquisitions with experienced advisors consistently achieve better outcomes than those who go through the process alone. The advisor team for a dental practice sale typically includes a dental-specific M&A attorney, a CPA familiar with practice transactions and tax structuring, and optionally a dental broker or financial advisor who can provide market context on multiples and deal structures.

The cost of advisor fees is typically small relative to the value at stake in a practice sale. A $2 million practice sale with a 10% improvement in deal terms from good advisory is worth $200,000. Attorney and advisor fees for that transaction are unlikely to exceed $30,000 to $50,000 in total.

For a deeper look at what to expect on the seller’s side of this process, read DSO vs. independent practice.

Redefine Web Works With Dental Groups and DSO-Affiliated Practices

Redefine Web develops digital marketing programs for dental groups and DSO-affiliated practices. If your practice has gone through an acquisition and needs marketing that delivers real patient volume at the location level, reach out to discuss what that looks like.

Explore the dental DSO hub and dental DSO marketing for more on growing DSO-affiliated practices.