Buy-and-bill economics for hematology: why PE is rolling up your specialty

May 6, 2026 · Pouyan Golshani, MD, Interventional Radiologist

Hematology infusion margins are why private equity has been acquiring heme/onc practices. Here’s the economics PE sees and how to evaluate a sale offer. The math is straightforward: buy-and-bill drugs, particularly in oncology and immunology, carry a spread between the acquisition cost (what the practice pays, often with 340B pricing or GPO discounts) and the reimbursement rate from payers. For a PE firm, this is a predictable, high-margin revenue stream that can be scaled by consolidating practices, negotiating better drug prices, and optimizing billing. When they make you an offer, they’ve already modeled this out. The life-changing check they write you is just a fraction of the enterprise value they plan to unlock.

But what happens the day after the deal closes? You transition from a partner-owner with K-1 income to a highly compensated W-2 employee. This shift is seismic for your personal financial strategy. The tax and wealth-building playbook that worked for you as a practice owner is now obsolete. The new game is about mitigating the limitations of W-2 income and leveraging sophisticated strategies that most employed physicians overlook. Understanding this new landscape is just as critical as negotiating the sale price. For a deeper dive into the specialty’s operational and clinical aspects, you can explore our complete collection of hematology free tools and resources.

The 199A Deduction: Your Last, Best Hope for a Practice-Owner Tax Break

Most physicians assume the Section 199A Qualified Business Income (QBI) deduction, a 20% tax break on pass-through income, is off-limits for them. They’re partially right. Medicine is classified as a “Specified Service Trade or Business” (SSTB), which means the deduction is phased out at higher income levels. However, for many hematologists, particularly those recently transitioned to W-2 roles or not yet at peak partner earnings, this deduction is very much in play.

Here’s the math. For 2026, the QBI deduction for an SSTB professional begins to phase out at a taxable income of approximately $394,000 for single filers and $787,000 for those married filing jointly. If your income is below this threshold, you can still get the full 20% deduction on any pass-through income you have. This could be from a real estate investment, a side business, or lingering K-1 income from your old practice.

The strategy is to actively manage your Adjusted Gross Income (AGI) to stay under that phase-out threshold. This isn’t about earning less; it’s about deferring more.

Max Out Pre-Tax Retirement Accounts: This is the first lever. Your 401(k) or 403(b) contribution directly reduces your AGI.
Utilize a 457(b) if Available: If your new employer is a non-profit health system, you may have access to a 457(b) plan, which allows for additional pre-tax deferrals on top of your 401(k)/403(b).
Fund Your HSA: A Health Savings Account is another powerful tool for reducing AGI.
Charitable Bunching: Instead of donating annually, “bunch” several years’ worth of charitable contributions into a single year using a Donor-Advised Fund (DAF). This large, itemized deduction can pull your AGI down significantly in the year you fund the DAF.

The trap is passive acceptance. Most physicians see “SSTB” and “phase-out” and just give up. But by strategically using deferral and deduction techniques, you can keep your AGI below the limit and capture a five-figure tax deduction that your peers are leaving on the table. The physician finance hub can help model how these different levers impact your AGI and potential QBI eligibility based on your specific numbers.

Recapture Lost Deductions with 1099 Side Income

One of the most painful financial pills to swallow after the Tax Cuts and Jobs Act (TCJA) of 2018 was the elimination of unreimbursed employee expense deductions. As a W-2 employee, you can no longer deduct costs for your medical licenses, DEA registration, board exams, CME travel, scrubs, or home office. These expenses, which can easily total $10,000-$20,000 a year, now come straight out of your post-tax pocket.

There is a powerful workaround: generate a small amount of 1099 self-employment income. By creating a legitimate side business—even one that brings in just a few thousand dollars—you get to file a Schedule C (Profit or Loss from Business). This form is your key to unlocking all those lost deductions.

Here’s how it works:

Establish a Side Gig: This can be anything from telemedicine shifts, expert witness reviews, consulting for a biotech firm, or a medical directorship. The income is reported on Form 1099-NEC.
File a Schedule C: You report your 1099 income on this form.
Deduct Your Professional Expenses: On that same Schedule C, you can now deduct all the “ordinary and necessary” expenses related to your profession as a physician. Since your CME, licenses, and dues are required for both your W-2 job and your 1099 work, a significant portion of these costs can be allocated as expenses against your self-employment income.

The planning trap here is fear of complexity. Many physicians think starting a “business” is a massive undertaking. It’s not. A sole proprietorship (just you, using your SSN) is the simplest structure. The key is meticulous record-keeping. Keep every receipt for every professional expense. Even if your side gig only nets a few thousand dollars after expenses, the tax savings from deducting $15,000 in professional costs can be enormous, effectively making your CME and licenses tax-free again.

The Solo 401(k): Your Secret Weapon for Supercharged Retirement Savings

Beyond rescuing deductions, that Schedule C from your 1099 side gig unlocks the single most powerful retirement savings tool available to a high-income professional: the Solo 401(k). While your W-2 job might offer a 401(k) or 403(b), its contribution limits are fixed. The Solo 401(k) lets you layer a second, massive retirement account on top of it.

A Solo 401(k) allows you to contribute as both the “employee” and the “employer” of your side business.

Employee Contribution: You can contribute up to 100% of your self-employment compensation, not to exceed the annual employee deferral limit (e.g., ~$24,500 in 2026). This is shared with your W-2 plan’s employee contribution. So if you max your W-2 401(k), you can’t make an additional employee contribution here.
Employer Contribution: This is the magic. As the “employer,” your business can contribute up to 20% of your net adjusted self-employment income. This is entirely separate from and in addition to your W-2 plan contributions.

The combined employee and employer contributions are capped (around $69,000 for 2024, indexed to inflation). For a physician with a significant side hustle, this means you could potentially shelter an extra $69,000+ per year in a pre-tax retirement account, dramatically reducing your current tax bill and accelerating your path to financial independence. Many Solo 401(k) plans also allow for Roth contributions and after-tax contributions, enabling the “Mega Backdoor Roth IRA” strategy.

The trap is procrastination. Setting up a Solo 401(k) must be done before the end of the calendar year (December 31) for you to make contributions for that year. Many physicians wait until tax time in April, only to discover they’ve missed the deadline and lost an entire year of massive tax-deferred savings.

HSA Triple-Stacking: The Ultimate Tax Shelter

If you have a high-deductible health plan (HDHP), you are eligible for a Health Savings Account (HSA). Most people treat it like a flexible spending account (FSA)—a way to pay for current medical expenses with pre-tax dollars. This is a colossal mistake. An HSA is not a spending account; it’s a stealth retirement account with a unique triple tax advantage that no other account can match.

Here’s the triple-stacking strategy:

Tax-Deductible Contributions: Contributions are made pre-tax (if through payroll) or are tax-deductible (if made directly), reducing your AGI. For 2026, the family contribution limit is projected to be around $8,750. You should max this out every single year without fail.
Tax-Free Growth: Unlike a 401(k) or IRA, the money inside your HSA can be invested in stocks and bonds and grows completely tax-free. You are not taxed on dividends, interest, or capital gains.
Tax-Free Withdrawals: You can withdraw money from the HSA tax-free at any time—next week or 30 years from now—to reimburse yourself for qualified medical expenses.

The key to making this a retirement powerhouse is to never use the HSA to pay for current medical expenses. Pay for your co-pays, prescriptions, and dental bills out-of-pocket with post-tax money. Instead, let the HSA balance grow and compound tax-free for decades. Keep a digital folder of every single medical receipt you incur over the years. When you retire at 65, you might have a folder with $150,000 in accumulated receipts and an HSA balance that has grown to $500,000. You can then withdraw the first $150,000 completely tax-free as “reimbursement” for those old expenses. The rest can be used for medical costs in retirement or, after age 65, can be withdrawn for any reason, functioning like a traditional IRA (subject to income tax, but no penalty).

The planning trap is using the debit card. The HSA provider will send you a convenient debit card. Shred it. Thinking of the HSA as a source of ready cash for medical bills destroys its long-term compounding power. It is the best long-term investment vehicle available to a W-2 physician, and it should be treated as such.

A High-Risk Play: Oil & Gas Intangible Drilling Costs (IDCs)

For physicians with a high-risk tolerance and a need for large, immediate deductions, direct participation in oil and gas drilling partnerships can be an option. The primary tax benefit comes from the deduction for Intangible Drilling Costs (IDCs). These are the non-salvageable costs of drilling a well—labor, fuel, repairs, hauling, etc. The IRS allows investors to deduct 65-80% of their investment in the very first year.

If you invest $100,000 into a drilling partnership, you could potentially get a $70,000 tax deduction in year one. For a physician in a high tax bracket, this could translate to $25,000-$30,000 in immediate tax savings. If the well is successful, it can provide a stream of royalty income for years.

However, this strategy is fraught with peril.

High Risk of Loss: Many wells are “dry holes,” resulting in a total loss of your investment. This is not like investing in an S&P 500 index fund; it’s highly speculative.
Alternative Minimum Tax (AMT): The IDC deduction is a “tax preference item.” This means it can trigger the AMT, a parallel tax system designed to ensure high-income earners pay a minimum level of tax. Triggering the AMT can significantly reduce or even eliminate the benefit of the IDC deduction.
Complexity and Scrutiny: These are complex, illiquid investments that often come with high fees and a greater likelihood of IRS scrutiny. You need a CPA who is an expert in this specific area to navigate the rules correctly.

The trap is being seduced by the big year-one deduction without understanding the underlying risks and tax complexities. This is an aggressive strategy suitable only for a small portion of an experienced investor’s portfolio, after all other tax-advantaged accounts have been maxed out. It is not a foundational wealth-building tool.

The transition from practice owner to employee is a pivotal moment. The economics that attracted private equity to your practice—stable, high-margin infusion services—are now working for them. Your new job is to build a personal financial machine that works just as efficiently for you. By deploying strategies like AGI management for QBI, using 1099 income to unlock deductions and the Solo 401(k), and maximizing the triple-tax-free power of an HSA, you can regain control and build substantial, tax-efficient wealth. If you’re facing a potential sale and need to understand the financial implications of an offer, you can request a diligence memo on a PE offer to get an independent analysis.