Podiatrists (Doctors of Podiatric Medicine, DPM) enroll in Medicare as physicians for billing purposes, using the same CMS-855I as MDs and DOs. However, podiatry has Medicare-specific coverage limitations that directly affect what services you can bill — getting this wrong is one of the most common billing compliance problems in the specialty.
Enrollment basics
Podiatrists enroll via the CMS-855I or PECOS. Required credentials:
- Doctor of Podiatric Medicine (DPM) degree from an accredited college
- State licensure as a podiatrist
- Active DEA registration if prescribing controlled substances
- Type 1 NPI (individual)
The routine foot care exclusion
Medicare does not cover routine foot care. This is a hard exclusion, not a coverage limitation — claims for routine foot care will deny regardless of medical necessity documentation.
Routine foot care includes:
- Cutting or removal of corns and calluses
- Trimming, cutting, or clipping of nails
- Hygienic and preventive maintenance of nails
⚠️ Risk flag: Many podiatrists bill routine foot care with a systemic condition diagnosis, believing the diagnosis creates coverage. Medicare’s “Class Findings” system is more specific than that — the systemic condition must be documented in a way that meets specific criteria.
When routine foot care IS covered: systemic conditions
Medicare covers otherwise-excluded routine foot care when the patient has a systemic condition that creates Class A, B, or C findings that make routine foot care a medical necessity:
Class A Findings (any one sufficient):
- Nontraumatic amputation of a foot or an integral skeletal portion
- Previous foot surgery complications
Class B Findings (any two required to qualify):
- Absent pedal pulses
- Claudication
- Temperature changes in the feet
- Edema
- Paresthesias
- Advanced trophic changes
Class C Findings (any one required, with qualifying systemic condition):
- Mycotic nails
- Heloma durum/molle
- Tyloma
- RAM/RAM-like changes
The documentation must establish the finding, connect it to the systemic condition, and establish that the foot care is medically necessary to avoid potential complications.
Covered podiatric services (not subject to the exclusion)
Many podiatric services are not routine foot care and are covered without the systemic condition requirement:
- Treatment of plantar fasciitis
- Bunion surgery
- Hammertoe correction
- Ingrown toenail removal with partial nail avulsion
- Wound care for diabetic foot ulcers
- Fracture care
- Tendon surgery
Diabetic foot care
Medicare has specific coverage for therapeutic shoe and insert coverage for beneficiaries with diabetes (A5500-A5512 range). This is a DMEPOS benefit — if you’re supplying the shoes, you need DMEPOS supplier enrollment in addition to your clinical enrollment.
Key applications
- CMS-855I — individual podiatrist enrollment
- CMS-855R — reassignment if billing under a group
- CMS-855S — DMEPOS (if supplying therapeutic shoes)
Ask Mae if you have questions about routine foot care coverage criteria or diabetic shoe billing.