Diabetic Foot Care: Prevention, Ulcers, Charcot, and Medicare Coverage

Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon · Balance Foot & Ankle · Howell & Berkley, MI · Last reviewed: May 2026

Jump To

Podiatrist-Recommended Products for Diabetic Foot Care

Diabetic foot care requires a daily prevention mindset — the right products make that routine practical and sustainable. These are the tools Dr. Biernacki recommends to every new diabetic patient at Balance Foot & Ankle.

Every day in my practice I see the consequences of undertreated diabetic foot complications — and more importantly, I see how preventable most of them are. The pathway from diabetes diagnosis to amputation typically runs through a sequence of skipped foot exams, unnoticed wounds (numbness is the reason they go unnoticed), delayed treatment, and infections that get out of control. Interrupting that sequence at any point prevents the outcome.

The patients who do best with diabetes and foot health share a common feature: they’re proactive, not reactive. They come in for their regular podiatry visits when their feet feel fine. They know how to inspect their feet. They wear the right footwear. And when something does develop — a blister, a callus that’s getting thick, a small area of skin breakdown — they call us immediately instead of waiting to see if it resolves on its own.

Why Diabetic Feet Are Different

Two complications of diabetes create the conditions for foot catastrophe:

• Peripheral neuropathy — Chronically elevated blood sugar damages the small nerve fibers that provide sensation to the feet. The result is a foot that cannot feel pain — the body’s normal alarm system for injury. A blister, a nail puncturing the skin, a stress fracture, a small cut — none of these produce the pain signal that would prompt a normal person to seek care. By the time a diabetic patient with advanced neuropathy notices a problem, it’s often been present for days or weeks. This is why daily visual inspection is non-negotiable.
• Peripheral arterial disease (PAD) — Diabetes accelerates atherosclerosis in the lower extremity arteries, reducing blood flow to the foot. A wound that would heal in 7–10 days in a person with normal circulation may take months to heal — or not heal at all — in a patient with PAD. Inadequate perfusion also means inadequate immune cell delivery, converting small infections into limb-threatening ones rapidly.

The combination of inability to feel an injury occurring AND inability to heal it efficiently creates the dangerous scenario that leads to diabetic foot ulcers, osteomyelitis (bone infection), and ultimately amputation in undertreated cases.

Risk Categories and How Often to See a Podiatrist

In our clinic, a diabetic foot exam includes: monofilament testing (10-gram Semmes-Weinstein monofilament — the standard clinical test for loss of protective sensation), vascular assessment (pulses, ankle-brachial index if indicated), skin integrity evaluation (calluses, fissures, pre-ulcerative lesions), nail assessment, and deformity screening. Preventive nail debridement and callus reduction — which reduce pressure points that become ulcers — are performed at each visit for at-risk patients. These are not luxury services; they are medical interventions that prevent hospitalizations.

Daily Foot Care Routine for Diabetic Patients

Daily foot inspection is the single most important self-management behavior for diabetic patients with neuropathy. Every morning or evening (make it a consistent routine): inspect the entire surface of both feet including between the toes and the heel. Use a mirror or ask a family member to check the sole if you cannot see it clearly. Look for: redness, blisters, calluses, cuts, cracks, swelling, color changes, or any area of skin breakdown. If you cannot feel your feet, you are relying entirely on this visual inspection to catch problems early.

• Wash feet daily in warm (not hot) water — Test the temperature with your elbow or a thermometer (under 38°C / 100°F). Neuropathy prevents you from feeling burns.
• Dry thoroughly between the toes — Moisture between toes promotes fungal infection and skin maceration that breaks down into ulcers.
• Moisturize the heel and sole daily — Dry, cracked skin is a portal for bacterial entry. Apply lotion to the sole and heel but NOT between the toes (excess moisture between toes promotes fungal growth).
• Never cut calluses or corns yourself — At-risk diabetic patients should not use blades, scissors, or chemical corn removers on their own feet. Podiatric debridement is the safe approach.
• Cut nails straight across — Never curved or rounded. Never cut into the corners.
• Never walk barefoot — Not indoors, not outdoors, not on the beach. One step onto a small stone or piece of debris you didn’t feel can start the wound pathway.
• Always check shoes before putting them on — Feel inside for small objects, stones, or rough areas.

Diabetic Foot Ulcers: Urgent Care Required

A diabetic foot ulcer — any break in the skin of the foot in a diabetic patient — is a medical urgency, not a “wait and see” situation. The timeline from small ulcer to deep infection to osteomyelitis can be measured in days in a patient with neuropathy and PAD. Every diabetic patient should have a protocol for what to do when they discover any skin breakdown:

• Call your podiatrist the same day — Not the next day, not after the weekend. Same day. Diabetic foot ulcers require wound evaluation, debridement, offloading, culture if infected, and a clear treatment plan within 24 hours of presentation.
• Do not apply home remedies — No hydrogen peroxide, Betadine, or chemical products to an open wound. These damage the healing tissue. Gentle saline rinse only until you’re seen.
• Off-weight-bear immediately — Total contact casting (TCC) or a removable cast walker that the patient actually wears (compliance is the key issue) is the gold standard for wound offloading. Continued weight-bearing on an ulcer prevents healing regardless of any other treatment.

Charcot Arthropathy: The Most Misdiagnosed Diabetic Foot Emergency

Charcot neuroarthropathy is a devastating, progressive destruction of the bones and joints of the foot in patients with severe peripheral neuropathy. The pathophysiology: neuropathic joints lose protective sensation, undergo repetitive micro-trauma that goes unfelt, and the inflammatory response combined with autonomic neuropathy (hyperemia) accelerates bone resorption. The result: spontaneous fractures and joint dislocations that the patient walks on because they cannot feel them.

The critical clinical presentation: A diabetic patient presents with a hot, swollen, red foot — often with minimal pain — and a history of increased activity or minor trauma in the preceding weeks. The classic misdiagnosis is cellulitis (skin infection) or gout. Distinguishing features of Charcot: bilateral warmth difference of >2°C between feet (use the back of the hand to compare), X-rays showing fragmented and disorganized bone architecture, and the history of neuropathy. MRI is the definitive early study — bone marrow edema precedes the X-ray changes by weeks.

Treatment: Total non-weight-bearing (typically total contact cast) for 3–6 months until the inflammatory phase resolves and bone consolidation occurs. This is non-negotiable — continued weight-bearing during active Charcot destroys the foot architecture permanently. Missed or delayed Charcot results in the “rocker bottom” foot deformity with plantar bony prominences that ulcerate chronically and are extremely difficult to manage.

Medicare Coverage for Diabetic Foot Care

Medicare Part B covers the following for qualifying diabetic patients:

• Diabetic foot exams — One preventive foot exam every 6 months for patients with diabetes-related nerve damage (peripheral neuropathy) who have no open wounds or sores. Must be performed by a physician or qualifying provider.
• Therapeutic shoes and inserts (Therapeutic Shoe Program) — One pair of extra-depth or custom-molded therapeutic shoes plus three pairs of custom inserts per calendar year for diabetic patients with one or more qualifying foot conditions (neuropathy with evidence of callus formation, foot deformity, pre-ulcerative callus, previous amputation, or poor circulation). A podiatrist prescribes; a certified pedorthist fits. Approximately 80% of the Medicare-approved amount is covered after the Part B deductible.
• Routine nail care — Covered when a systemic condition (diabetes, peripheral vascular disease) makes routine nail care a medical necessity. Documentation of the systemic condition and the medical necessity is required.

Our clinic handles Medicare therapeutic shoe prescriptions and coordinates fittings. If you have diabetes and are on Medicare, contact us to determine whether you qualify — most patients with any degree of neuropathy or foot deformity do.

Footwear and Products for Diabetic Feet

Diabetic Extra-Depth Shoe — New Balance 928v3

Frequently Asked Questions

How often should a diabetic person see a podiatrist?

It depends on your risk category. Diabetic patients with no neuropathy and no foot complications: annually. With neuropathy (loss of feeling): every 3–6 months. With neuropathy plus deformity or poor circulation: every 2–3 months. With a history of foot ulcer or amputation: every 1–2 months. These frequencies are based on published evidence for ulcer prevention — more frequent visits produce lower ulcer and amputation rates. The cost of a preventive visit is a fraction of the cost of treating an infected ulcer or amputation hospitalization.

What does a diabetic foot exam include?

A comprehensive diabetic foot exam includes: monofilament sensory testing (10-gram filament at standardized sites — the clinical standard for detecting loss of protective sensation), vibration testing with a tuning fork, inspection of skin integrity, temperature, and color, vascular assessment (dorsalis pedis and posterior tibial pulses, capillary refill), nail and skin inspection for fungal infection, callus, fissures, and pre-ulcerative lesions, structural assessment for deformity (bunions, hammertoes, Charcot changes), and footwear evaluation. In our clinic, preventive nail and callus debridement is routinely performed at diabetic foot visits for at-risk patients.

Can diabetic neuropathy get better?

Peripheral neuropathy caused by diabetes is partially reversible with excellent long-term blood sugar control — particularly in early stages. The landmark DCCT study showed that intensive glycemic control in Type 1 diabetes reduced the incidence of clinical neuropathy by 60%. However, established neuropathy in long-standing diabetes is difficult to fully reverse. The practical goal for most patients: prevent further progression, minimize the functional impact of existing neuropathy, and implement the protective practices that prevent ulcers. Newer treatments (B vitamins, alpha-lipoic acid, and some medications) show modest benefits in symptom control but do not reliably restore sensation.