Pulmonary practice economics: PFT lab, sleep, bronchoscopy, and ICU revenue streams

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

Pulmonologists straddle four revenue streams that most never optimize together. Here’s the practice structure conversation.

Most of us are trained to think clinically, not economically. We master the nuances of restrictive versus obstructive lung disease, but we rarely apply the same rigor to the financial architecture of our practices. We see the PFT lab, the sleep center, the bronchoscopy suite, and our ICU time as separate clinical duties. They are also distinct business units, each with its own potential for optimization—or neglect. The real leverage, however, comes from connecting a well-run practice’s cash flow to a sophisticated personal financial strategy. Generating the income is only half the battle; the other half is structuring your life to keep and grow it efficiently.

This is the conversation about both sides of the ledger. First, we’ll touch on the high-level economics of the core pulmonary service lines. Then, we’ll dive deep into the specific, actionable tax and investment strategies that are particularly powerful for physicians in our income bracket. For a broader look at the clinical side, you can find more pulmonology free tools and resources on the GigHz hub.

The Four Pillars: PFT, Sleep, Bronchoscopy, and ICU

Before we get into personal tax strategy, let’s frame the revenue sources. Your income doesn’t materialize out of thin air; it’s the result of a practice model. Whether you’re an owner, a partner, or an employee with productivity bonuses, understanding these pillars is key.

The PFT Lab: This is the bread-and-butter ancillary for most pulmonary practices. The economics hinge on volume, efficient technologist staffing, and accurate CPT coding (e.g., 94060, 94726, 94727). The capital expenditure for equipment is significant, but the per-test margins can be strong. The challenge is ensuring your negotiated rates with commercial payers reflect the value and cost of maintaining a high-quality, accredited lab. This is where granular data on what other practices in your region are getting paid becomes critical.
The Sleep Center: A sleep lab can be a major revenue driver, but it comes with higher operational complexity—overnight staffing, DME integration, and strict accreditation standards. The shift toward home sleep apnea tests (HSATs) has changed the model, creating a lower-overhead, higher-volume pathway for diagnosis (CPT 95800, 95806). A hybrid model is often the most resilient. The financial pro forma for a sleep lab, whether in-office or as a standalone facility, is complex.
Bronchoscopy Suite: For interventional-heavy pulmonologists, bringing procedures out of the hospital and into an office-based lab (OBL) or ambulatory surgery center (ASC) can be transformative. Performing navigational bronchoscopy, EBUS, or even straightforward BALs in a controlled, lower-cost setting you own or have equity in changes the entire financial equation. This requires a deep understanding of facility fees, payer contracts for out-of-hospital procedures, and the upfront capital costs. Modeling this requires robust CenterIQ rate intelligence to see what payers are actually reimbursing for these procedures in your specific zip code.
ICU and Inpatient Consults: This is the professional services pillar. While it doesn’t have the ancillary revenue of the other three, it’s often the foundation of a practice’s hospital relationship and referral base. The economics are simpler—it’s about wRVU productivity, call coverage stipends, and medical directorships. The trap here is burnout; it’s the most time-intensive and least scalable part of the practice.

Optimizing these pillars, particularly the ancillary services, often involves building something new. Whether it’s a new sleep lab or a full-fledged ASC for your bronchoscopy cases, the initial analysis is everything. Getting an expert second opinion is crucial, which is where an ASC/OBL feasibility advisory engagement can prevent a multi-million dollar mistake by pressure-testing your assumptions against real-world data.

Once you’ve optimized these revenue streams, the focus shifts. How do you protect that income from your single largest expense: taxes?

The 199A Deduction: Your Reward for Practice Ownership

For those of us with ownership stakes in our practices—even a small one—the Section 199A Qualified Business Income (QBI) deduction is one of the most valuable parts of the tax code. It allows you to deduct up to 20% of your qualified business income, but there’s a catch for physicians.

How It Works: Medicine is classified as a “Specified Service Trade or Business” (SSTB). This means the 20% deduction is fully available only if your taxable income is below a certain threshold. For 2026, those thresholds are projected to be around $394,000 for single filers and $787,000 for those married filing jointly (MFJ). Above this, the deduction is phased out and eventually eliminated.

The Strategy: Many pulmonologists, especially in dual-income physician households, will find themselves over that MFJ threshold. The goal is to strategically reduce your Adjusted Gross Income (AGI) to get back under the wire. This isn’t about earning less; it’s about deferring more.

Max out all available pre-tax retirement accounts: your practice’s 401(k)/403(b) ($24,000 in 2026), a spousal 401(k), and any non-governmental 457(b) plans.
Max out a Health Savings Account (HSA), which we’ll cover next.
If you have 1099 income on the side, a Solo 401(k) offers massive additional pre-tax space.
“Bunch” your charitable contributions into a Donor-Advised Fund (DAF) every few years to create a large, single-year deduction.

The Trap to Avoid: The most common mistake is passive acceptance. Many physicians see their high income, assume they don’t qualify for 199A, and leave it at that. They fail to realize that a $50,000 reduction in AGI through aggressive savings could preserve a QBI deduction worth tens of thousands of dollars. For a practice owner with $500,000 in pass-through income, qualifying for the full 20% deduction is a $100,000 tax savings. It’s worth fighting for.

Rescuing Lost Deductions: The W-2 Employee’s Schedule C Fix

Most of us remember the old days when we could deduct unreimbursed professional expenses—CME, board exams, licenses, scrubs, journals. The Tax Cuts and Jobs Act of 2017 (TCJA) eliminated those miscellaneous itemized deductions for W-2 employees. For a hospital-employed pulmonologist, this meant thousands of dollars in expenses could no longer be written off.

How It Works: The fix is to generate even a small amount of 1099 (independent contractor) income. This allows you to file a Schedule C, “Profit or Loss from Business,” with your tax return. A Schedule C is a business P&L, and businesses are allowed to deduct all “ordinary and necessary” expenses incurred to generate that income.

The Strategy: Pick up a side hustle. It doesn’t have to be a huge commitment.

A few telemedicine shifts per month.
Medical file reviews for an insurance company.
A medical directorship for a local skilled nursing facility.
Consulting for a medical device startup.

Let’s say you earn $10,000 in 1099 income from chart reviews. You can now deduct expenses against *that* income. The magic is that many of your professional expenses are dual-purpose. The portion of your cell phone bill used for work, your medical license renewal, your DEA fee, your subscription to CHEST—these are all necessary expenses for you to be a practicing pulmonologist, and therefore necessary for your 1099 work. You can allocate a reasonable portion of these costs to your Schedule C, effectively “rescuing” deductions that were lost on the W-2 side.

The Trap to Avoid: Don’t get greedy. The expenses must be legitimately related to your business activity. You can’t write off your entire family vacation because you answered one email. But you absolutely can and should deduct the pro-rata share of your home office, internet, computer, and professional dues. The key is to keep clean records. A separate bank account and credit card for your 1099 activity makes this infinitely easier for your accountant at year-end.

The HSA Triple-Stack: Your Secret Retirement Account

The Health Savings Account (HSA) is the most powerful tax-advantaged account available, yet most physicians misuse it as a simple checking account for medical bills. When used correctly, it’s a “super Roth” IRA.

How It Works: The HSA offers a unique triple tax advantage:

Tax-deductible contributions: Your contributions reduce your taxable income, just like a traditional IRA or 401(k). For 2026, the family contribution limit is $8,750.
Tax-free growth: You can invest the money inside your HSA in stocks, bonds, and mutual funds, and it grows completely tax-free.
Tax-free withdrawals: You can withdraw the money tax-free at any time to pay for qualified medical expenses.

The Strategy (The “Stack”):

Max it out: Contribute the maximum family amount every single year.
Invest it: Do not leave the funds in cash. As soon as the money hits the account, invest it in a low-cost, broad-market index fund, just like you would in your 401(k).
Pay out-of-pocket: Pay for all current medical expenses with a credit card or cash, *not* from the HSA. Scan and save every single medical receipt (copays, prescriptions, dental, vision) in a dedicated folder on your cloud drive (e.g., Dropbox, Google Drive).

Decades from now, in retirement, you will have a massive, tax-free investment account. You can then withdraw funds completely tax-free against the cumulative total of all those receipts you saved over the years. It becomes a tax-free emergency fund or a source of income. After age 65, you can also withdraw from it for any reason (not just medical) and pay only ordinary income tax, making it function like a traditional IRA. It’s a can’t-lose vehicle.

The Trap to Avoid: The biggest trap is spending it. Most people see the HSA as a way to get a 25-35% “discount” on today’s medical bills via the tax deduction. This is penny-wise and pound-foolish. The real value is in decades of tax-free compound growth. A single $8,750 contribution invested for 30 years could grow to over $100,000. Don’t trade that long-term tax-free growth for a small tax break today.

Cost Segregation: Supercharging Real Estate Depreciation

For physicians who own their medical office building or invest in rental properties, depreciation is a powerful tool. It’s a non-cash expense—a “paper loss”—that reduces your taxable income. A cost segregation study is the way to put this on steroids.

How It Works: By default, a commercial building is depreciated over 39 years and a residential rental over 27.5 years. This means you get to deduct a small slice of the building’s value each year. A cost segregation study is an engineering-based analysis that breaks a property down into its components. It identifies parts of the building that can be depreciated on a much faster schedule—5, 7, or 15 years. This includes things like carpeting, specialty electrical wiring, cabinetry, and exterior landscaping.

The Strategy: Let’s say you buy a small medical office building for $1.5 million (excluding land value). A standard depreciation schedule might give you a deduction of ~$38,000 per year. A cost segregation study might identify that 25% of the building’s value ($375,000) is actually 5-year and 15-year property. This allows you to “front-load” those deductions. Instead of $38,000, your year-one depreciation deduction could be over $200,000 (especially if bonus depreciation rules are in effect). This massive paper loss can be used to offset other income.

The Trap to Avoid: The biggest trap is thinking this is only for multi-million dollar properties. A cost segregation study can be cost-effective for properties purchased for as little as $500,000. The second trap is related to passive activity loss (PAL) rules under IRS §469. For most physicians, real estate is a passive activity, and you can only deduct passive losses against passive gains. However, there is a major exception: Real Estate Professional Status (REPS). If your spouse is not a physician and can document spending more than 750 hours per year (and more than 50% of their total working time) managing your real estate portfolio, your rental losses become non-passive. They can then be used to directly offset your high W-2 physician income. Combining a cost segregation study with a spouse who qualifies for REPS is one of the most powerful wealth-building strategies available to a physician family.

The throughline here is proactive planning. Whether it’s modeling the P&L for a new bronchoscopy suite or structuring your personal finances to qualify for the 199A deduction, the default path is rarely the optimal one. The key is to understand the rules of the game—both in your practice and in the tax code—and structure your career and finances to take advantage of them.