What is Dermatology Accounting?
Dermatology practice accounting is the financial management discipline for dermatology and Mohs surgery practices — separating medical from cosmetic revenue streams, tracking procedure-level margins, and reconciling insurance reimbursement — typically used by dermatologist-owners with $800K–$5M per provider who need profit visibility across their service mix.
Medical derm pays the bills. Cosmetic derm should be paying for the vacation home.
If you cannot see separate P&Ls for your medical and cosmetic sides, you are flying blind on both. We fix that.
A 4-minute test your accountant hopes you skip.
At a glance
Industry Context
How Dermatology Practices Actually Run Their Books
Dermatology is two businesses operating under one roof, and this is where most accounting setups fail. The medical side bills insurance for skin checks, biopsies, Mohs surgery, and inflammatory skin disease management. The cosmetic side collects cash from patients for Botox, fillers, lasers, peels, and skincare products. The two sides have different gross margins (cosmetic typically 60 to 75 percent, medical typically 35 to 50 percent after payer adjustments), different staffing models, different supply costs, and different sales tax exposure. When the books treat them as one business, owners cannot tell which side is funding which.
Dermatology owners need true segment reporting: a P&L for medical, a P&L for cosmetic, and a P&L for retail product sales if they sell skincare. They also need biologics tracking (Cosentyx, Dupixent, Skyrizi, Stelara) because biologic drug costs are buy-and-bill items that flow through both expense and revenue at high dollar amounts. A typical mid-size derm practice runs $100K to $500K per year through biologics, and the margin spread varies by drug, by payer, and by whether the practice uses Average Sales Price (ASP) plus 6 percent or has a different commercial contract.
Is This Right for You?
This service is for dermatology practice owners who recognize these problems:
Need strategic financial leadership? Our Fractional CFO service for dermatology practices may be a better fit.
What We Often Find
Common Accounting Mistakes in Dermatology Practices
These are the patterns we see most often when we open the books of a new dermatology client.
01
One P&L for medical and cosmetic combined
When the financials lump Botox revenue with biopsy revenue and laser supplies with surgical supplies, it is impossible to see which line of service is actually profitable. We separate medical and cosmetic into distinct departments with their own P&Ls.
02
Booking biologics as cost of goods rather than tracking margin
Biologic drugs flow through buy-and-bill at high dollar amounts but variable margins. Booking them as a single COGS line hides the fact that some drugs are profitable at ASP plus 6 percent while others lose money after the cost of administration and wastage.
03
Not separating pathology revenue from clinical revenue
Practices with in-house pathology should track that revenue and the costs to run the lab as a separate department. Without this, owners cannot tell whether the in-house lab is paying for itself or losing money on volume.
04
Treating cosmetic deposits as revenue when received
Patient deposits on series packages (laser, microneedling, peels) are deferred revenue, not realized revenue, until services are delivered. Booking them on receipt overstates current revenue and understates package liability.
05
Ignoring drug wastage and discard tracking
Single-use vials of biologics or cosmetic injectables often have leftover product that must be discarded. Medicare allows billing for discarded amounts with the JW modifier, but most practices either do not bill it or bill it incorrectly. This is real revenue.
The Numbers That Matter
Key Accounting Metrics for Dermatology Practices
Medical vs Cosmetic Revenue Mix
Healthy range: 15 to 35 percent cosmetic for a balanced general derm; higher for cosmetic-focused practices
- Cosmetic revenue as a percentage of total revenue. Tracks the strategic balance of the practice.
Cosmetic Gross Margin
Healthy range: 60 to 75 percent
- Cosmetic revenue minus direct cost of injectables, retail product, and supplies, divided by cosmetic revenue.
Biologic Revenue per Drug
- Net revenue per administered drug after acquisition cost, wastage, and reimbursement.
Pathology Revenue per Specimen
- Net pathology collections divided by specimens processed, for in-house pathology operations.
Provider Production per Hour
Healthy range: $400 to $700 per provider hour
- Collections generated divided by clinical hours worked, by provider.
Retail Product Sell-Through Rate
Healthy range: 70 to 90 percent
- Units sold divided by units stocked over a rolling 90-day window.
Software & Vendors
EHR, PM, and Vendor Reality for Dermatology Practices
Most dermatology practices run on Modernizing Medicine (EMA/ModMed), Nextech, EZDERM, or Practice Fusion for clinical work, often supplemented by separate cosmetic-focused systems like Aesthetic Record, Vagaro, or Boulevard for the cosmetic side. Medical and cosmetic data sources do not naturally talk to each other, and reconciling combined revenue against the bank deposit requires manual work each month. We build a chart of accounts that mirrors the clinical-cosmetic split and a monthly reconciliation workflow that matches deposits back to source systems.
Drug acquisition vendors (McKesson Plasma and Biologics, ASD Healthcare, Besse Medical) and group purchasing organizations meaningfully affect biologic margins. Pathology lab partners (Aurora Diagnostics, PathGroup, in-house dermatopathology setups) need separate vendor tracking because the pathology line is often a high-volume, high-cost line item that should be analyzed for in-source vs outsource economics annually.
What's Included
How We Work With Dermatology Practices
Dermatology-specific accounting that goes beyond reconciliation.
Medical vs Cosmetic Revenue Separation
- •Dual P&L structure (medical and cosmetic)
- •Shared overhead allocation between medical and cosmetic
- •Cosmetic service margin analysis by procedure type
- •Sales tax compliance for cosmetic services
Cosmetic Inventory & Product Tracking
- •Botox/filler unit cost tracking and waste analysis
- •Laser consumable cost per treatment
- •Skincare retail inventory management and margin tracking
Provider-Level Economics
- •Revenue and margin per provider (MD vs PA/NP)
- •Mohs case cost analysis (staff, supplies, time)
- •Cosmetic procedure profitability by provider
- •Supervision cost allocation for mid-levels
Membership & Package Accounting
- •Deferred revenue tracking for prepaid packages
- •Membership program profitability analysis
- •Breakage rate and utilization tracking
Results
What Dermatology Practices Experience
| Metric | Typical Outcome |
|---|---|
| Cosmetic margin improvement | $150K–$200K range annually from margin analysis, pricing corrections, and filler waste reduction |
| Mohs revenue recovered | Mid-five figures from coding corrections |
| Mid-level restructuring | Both providers became profitable within a quarter or two once the schedule was optimized |
Illustrative Scenario
What This Looks Like In Practice
A multi-physician dermatology practice with a cosmetic suite, single location, several million in annual revenue. Revenue had grown in the high teens as a percentage over a few years while net income stayed flat. The owner could not explain the gap.
What we typically find:
- •Cosmetic generating roughly a third of revenue but closer to a fifth of profit, driven by untracked filler waste in the low double digits per vial and under-priced laser treatments
- •Mohs multi-stage cases being billed as single-stage a meaningful share of the time, leaving mid-five-figure revenue uncollected annually
- •Mid-level providers showing as revenue generators on the surface but net-negative once supervision time, benefits, and overhead were properly allocated
- •A membership program with a high utilization rate that meant the practice was effectively giving away five figures in unused services a year
Representative results
$150K–$200K range annually from margin analysis, pricing corrections, and filler waste reduction
Cosmetic margin improvement
Mid-five figures from coding corrections
Mohs revenue recovered
Both providers became profitable within a quarter or two once the schedule was optimized
Mid-level restructuring
The takeaway
The pattern we see in dermatology practices with meaningful cosmetic volume: without provider-level and service-level margin tracking, cosmetic often looks better than it really is on a loaded-cost basis, while the quieter medical side is doing the actual work.
Common Questions About Accounting for Dermatology Practices
Don't pay for reports. Pay for progress.
Take the 4-minute financial assessment—and find out if your books are helping or hurting your dermatology practice.
The test your accountant hopes you skip.
By state
Dermatology Practices accounting and CFO support, by state
State-level tax, payer, and regulatory context shapes what “good” looks like for dermatology practices practices. The pages below walk through each state's specifics.