A vascular surgeon is the most broadly qualified doctor to treat venous insufficiency, but several other specialists also manage this condition depending on its severity. Your primary care doctor can diagnose it and start initial treatment, then refer you to a specialist if your symptoms persist or worsen.
Your Primary Care Doctor’s Role
Most people with venous insufficiency start with their primary care physician or family doctor. These providers can recognize the hallmark signs: aching and heaviness in the legs, swelling that worsens with prolonged standing, visible varicose veins, and skin changes like discoloration or thickening around the ankles. To confirm the diagnosis, your doctor will typically order a duplex ultrasound with reflux testing, which measures whether blood is flowing backward through your leg veins.
Primary care doctors also manage the first line of treatment, which is almost always compression stockings and lifestyle changes like leg elevation and regular walking. Insurance companies usually require you to complete about 12 weeks of medical-grade compression therapy before they’ll approve any procedures. If your symptoms persist after that conservative trial, your doctor will refer you to a vascular specialist.
Vascular Surgeons
Vascular surgeons have the most extensive training for treating venous insufficiency. After medical school, they complete a five-to-seven-year general surgery residency followed by a two-year vascular fellowship, and they’re board-certified by the American Board of Surgery. This training covers the entire vascular system, including arteries, veins, and lymphatic vessels, giving them the widest range of treatment options.
A vascular surgeon can manage everything from mild varicose veins to severe venous ulcers. They perform minimally invasive procedures like radiofrequency ablation (which uses heat delivered through a thin catheter to seal off damaged veins) as well as open surgeries when needed. If your venous insufficiency is complicated by arterial disease or other vascular problems, a vascular surgeon can address all of it. Most ablation procedures happen in an office setting under local anesthesia with mild sedation, and you’ll typically have a follow-up ultrasound about a week later to confirm the treated vein has sealed.
Phlebologists (Vein Specialists)
A phlebologist is a doctor who focuses specifically on vein disorders. They’re often certified by the American Board of Venous and Lymphatic Medicine, though they don’t necessarily have surgical residency training. Phlebologists come from various medical backgrounds, including dermatology, emergency medicine, or internal medicine, and then specialize in vein care.
Their strength is in treating cosmetic or superficial vein issues. They typically handle spider veins and mild-to-moderate varicose veins using non-surgical methods like sclerotherapy, where a solution is injected directly into the vein to close it. For more advanced venous insufficiency involving skin changes, ulcers, or deep vein involvement, a phlebologist may not have the surgical training needed and would refer you to a vascular surgeon.
Interventional Radiologists
Interventional radiologists are doctors trained to perform image-guided, minimally invasive procedures. They use real-time ultrasound to visualize veins during treatment and offer several options for venous insufficiency: endovenous thermal ablation (sealing veins with laser or radiofrequency heat), ambulatory phlebectomy (removing smaller varicose veins through tiny incisions), and ultrasound-guided sclerotherapy for networks of veins just below the skin surface.
These specialists are a strong option if you need a minimally invasive procedure but don’t have a condition requiring open surgery. Their particular expertise is precision with imaging technology, which matters for accurately targeting the right veins during treatment.
How Severity Shapes Your Choice
Venous insufficiency is graded on a clinical scale from C0 (no visible signs) to C6 (active leg ulcer). Where you fall on that scale helps determine which specialist makes the most sense.
- Spider veins or mild varicose veins (C1 to C2): A phlebologist or vein clinic can typically handle these with sclerotherapy or surface laser treatments.
- Swelling, skin discoloration, or eczema (C3 to C4): A vascular surgeon or interventional radiologist is better equipped to evaluate the deeper veins and perform ablation procedures if conservative treatment hasn’t helped.
- Healed or active venous ulcers (C5 to C6): A vascular surgeon is the most appropriate choice. Ulcers that haven’t healed after two to three months of standard wound care, or ulcers that keep recurring, need specialist intervention. If there’s any concern about arterial disease contributing to the ulcer, an urgent vascular surgery referral is warranted.
What Treatment Looks Like
Regardless of which specialist you see, the most common procedure for moderate-to-severe venous insufficiency is endovenous thermal ablation. Your provider numbs the area around the vein, uses ultrasound to guide a thin catheter inside it, and delivers heat (either laser or radiofrequency) to collapse and seal the vein. Blood reroutes through healthier veins naturally. The procedure typically takes 20 to 30 minutes, and most people return to normal activities quickly.
A newer alternative uses medical-grade adhesive (cyanoacrylate glue) to seal the vein instead of heat. This approach has a slightly shorter procedure time and tends to cause less discomfort during the treatment itself. At three months, both methods show significant improvement in symptoms like night cramps, itching, heaviness, and pain. Night cramping improves in roughly 95% of treated patients, and heaviness improves in about 85%. The glue method does carry a risk of allergic skin reactions in some patients, occurring in about 28% of cases in one study.
What Insurance Typically Requires
If your venous insufficiency is causing medical symptoms rather than purely cosmetic concerns, insurance will often cover treatment. But there’s a process. Most insurers require documented evidence that you’ve worn medical-grade compression stockings under a doctor’s supervision for approximately three months before they’ll approve a procedure like ablation or sclerotherapy. Your provider will also need to document your symptoms and ultrasound results showing venous reflux to establish medical necessity. Purely cosmetic treatments for spider veins are rarely covered.
Starting with your primary care doctor and getting that conservative treatment period documented from the beginning can save you time when you’re ready for a specialist referral. If your doctor orders the duplex ultrasound early, you’ll already have the diagnostic evidence your insurance needs on file.