Medicare covers most dermatology procedures that are medically necessary, meaning they diagnose, treat, or manage a skin condition that affects your health. Purely cosmetic procedures are almost never covered. The line between the two isn’t always obvious, so understanding what qualifies can save you from unexpected bills.
Under Original Medicare (Part B), you’ll typically pay 20% of the Medicare-approved amount after meeting your annual deductible, which is $283 in 2026. That applies to office visits, biopsies, surgeries, and other covered services, as long as your dermatologist accepts Medicare assignment.
Skin Cancer Detection and Removal
Skin cancer treatment is one of the clearest areas of Medicare dermatology coverage. If your dermatologist spots a suspicious mole or lesion, the biopsy to test it is covered. So is the excision if it turns out to be cancerous or highly suspicious. Your doctor documents the size, location, and level of suspicion, and Medicare reimburses accordingly.
For more complex skin cancers, Medicare covers Mohs micrographic surgery, a precise, layer-by-layer technique that checks margins under a microscope during the procedure. Coverage is indicated when the edges of a cancer are hard to define clinically and a standard excision might miss some of the tumor. This commonly applies to basal cell carcinomas and squamous cell carcinomas in sensitive areas: the central face, eyelids, nose, lips, ears, temples, hands, feet, genitalia, and nipples. It also applies to cancers on the cheeks, forehead, scalp, neck, and jawline.
Mohs surgery can also be covered on the trunk and extremities when the cancer arises in previously radiated skin, traumatic scars, areas of chronic inflammation, or in patients with genetic syndromes that predispose them to skin cancer. Recurrent cancers that return after prior treatment generally qualify as well. Your surgeon needs to document why a standard excision wouldn’t be sufficient.
Precancerous Lesion Treatment
Actinic keratoses, the rough, scaly patches caused by years of sun exposure, are precancerous and fully covered. Medicare covers destruction of actinic keratoses without restrictions based on the number of lesions or patient characteristics. Common treatments include freezing with liquid nitrogen (cryotherapy), topical prescription creams, and scraping (curettage). Your local Medicare contractor does retain some discretion over how many office visits it considers reasonable for treating these lesions, but there’s no cap on the number of spots that can be treated per visit.
Benign Growths: Skin Tags, Cysts, and Moles
This is where coverage gets more nuanced. Medicare can cover removal of benign skin lesions like skin tags, sebaceous cysts, and moles, but only when there’s a documented medical reason. A skin tag that bleeds from friction against clothing, a cyst that has become infected or painful, a mole that shows signs concerning enough to warrant removal: these qualify. A simple statement of “irritated lesion” isn’t enough. Your doctor needs to document your specific symptoms and physical findings in the medical record.
If a benign lesion is asymptomatic and you simply want it removed for appearance, Medicare will not pay. Your dermatologist should tell you in advance that the procedure would be considered cosmetic, and you’d be responsible for the full cost. Sebaceous cysts, epidermal cysts, and pilar cysts all have recognized diagnosis codes that support medical necessity, so coverage is available when clinical symptoms justify removal.
Phototherapy for Psoriasis and Other Conditions
Medicare covers several forms of light therapy for psoriasis. Standard ultraviolet B (UVB) light treatment and the Goeckerman regimen (coal tar combined with UVB) are covered as conventional treatments. A more intensive option called PUVA therapy, which combines a light-sensitizing medication with ultraviolet A light, is also covered but with conditions: your psoriasis must be intractable and disabling, and you must have tried and failed more conventional treatments first.
PUVA therapy is generally limited to 30 treatment sessions unless your doctor documents that you’re continuing to improve and more sessions are needed. Topical steroid treatments and other prescription therapies for psoriasis are also covered as standard care.
Routine Skin Screenings Are Not Covered
One gap that surprises many people: Medicare does not cover routine annual full-body skin exams for patients without symptoms. It’s not on the official list of Medicare preventive services, which includes screenings for conditions like colorectal cancer, diabetes, and lung cancer, but not skin cancer screening in asymptomatic patients.
That said, if you go to a dermatologist because you noticed a changing mole, a new growth, or a sore that won’t heal, that visit is a diagnostic visit, not a screening, and it’s covered. The distinction matters. If your primary care doctor notices something suspicious during your Annual Wellness Visit and refers you to a dermatologist, that referral visit is also covered. You just can’t schedule a “let’s check everything” skin exam and expect Medicare to pay for it when you have no symptoms or concerns.
What Medicare Considers Cosmetic
Medicare explicitly excludes procedures performed solely to improve appearance. Common dermatology services that fall into this category include chemical peels, laser hair removal, cosmetic laser resurfacing, and removal of age spots or benign growths for aesthetic reasons.
Some procedures sit in a gray area because they can be either cosmetic or medical depending on the circumstances. Medicare specifically flags five procedures that sometimes require prior authorization:
- Blepharoplasty (eyelid surgery): covered when drooping skin obstructs your vision, cosmetic when it doesn’t
- Botulinum toxin injections: covered for muscle disorders like spasms, not covered for wrinkle reduction
- Panniculectomy: covered when excess abdominal skin causes functional problems or chronic infections
- Rhinoplasty: covered after accidental injury or to correct a functional problem, not for reshaping
- Vein ablation: covered when veins cause symptoms like pain or swelling, not for spider veins that are purely cosmetic
The overarching rule is straightforward: if cosmetic surgery is needed to repair damage from an accident or to improve the function of a malformed body part, Medicare may cover it. If the only purpose is to look better, you pay the full cost yourself.
How to Avoid Surprise Bills
The most common billing surprises in dermatology happen when a visit starts as a medical concern but includes something Medicare considers cosmetic, or when a benign lesion removal lacks sufficient documentation of medical necessity. A few practical steps can help.
Before any procedure, ask your dermatologist whether they expect Medicare to cover it. If they plan to remove a benign lesion, confirm they’ll document symptoms like pain, bleeding, or infection rather than listing it as a cosmetic removal. Make sure your dermatologist accepts Medicare assignment, which means they agree to the Medicare-approved amount as full payment. Doctors who don’t accept assignment can charge up to 15% more than the approved amount, and you’d owe the difference.
If you have a Medicare Advantage plan (Part C) rather than Original Medicare, your plan must cover everything Original Medicare covers but may have different copays, require referrals, or limit you to in-network dermatologists. Check your plan’s specific terms before scheduling.