Who bills the most Pathology examination of tissue using a microscope, moderately high complexity (88307) to Medicare in California?

110 physician groups billed Pathology examination of tissue using a microscope, moderately high complexity (88307) to Medicare fee-for-service in California in 2024; the top five named groups hold 28% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.

88307 — Pathology examination of tissue using a microscope, moderately high complexity · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.

Snapshot covers the whole California market — the table below shows the top 100 groups (free tier).

*Share of California's disclosed Medicare-FFS services for 88307, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 88307 in California — including groups registered elsewhere ("City" is each group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group.