Who bills the most Injection, natalizumab, 1 mg (J2323) to Medicare in Texas?
Medicare Part B FFS · CY2024 · as published by CMS2 physician groups billed Injection, natalizumab, 1 mg (J2323) to Medicare fee-for-service in Texas in 2024; independent (non-hospital-affiliated) groups deliver 0%.
J2323 — Injection, natalizumab, 1 mg · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.
Snapshot covers the whole Texas market — the table below shows the top 100 groups (free tier).
Medicare fee-for-service covers 46% of Medicare in Texas; Medicare Advantage penetration 43% → 54% since 2020.
| # | Physician group | City | St | Specialty | Providers | J2323 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | BSA AMARILLO DIAGNOSTIC CLINIC INC | AMARILLO | TX | NURSE PRACTITIONER | 31 | 45,600 | 46.3% | (806) 358-0200 |
| 2 | MID CITIES NEUROLOGY ASSOCIATES, P.A. | FORT WORTH | TX | NEUROLOGY | 12 | 22,800 | 23.2% | (817) 267-6290 |
*Share of Texas's disclosed Medicare-FFS services for J2323, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing J2323 in Texas — 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.
How to read this. Figures are Medicare fee-for-service only — not all-payer — from the CMS Medicare Physician & Other Practitioners Public Use File (Part B), CY2024 release. CMS suppresses any provider×code row under 11 beneficiaries, so a missing group means "suppressed," never zero. "Charges" are provider-submitted amounts, not payments. Groups are ranked by measured service volume attributed to clinicians in exactly one group — clinicians affiliated with several groups are listed in rosters but never volume-attributed to a single group — a direct read of the public record, not a rating or quality score. Full method: Methods & Sources.
Comparing against an all-payer estimate?
These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →