Who bills the most Injection, fosaprepitant, 1 mg (J1453) to Medicare in Maryland?
Medicare Part B FFS · CY2024 · as published by CMS12 physician groups billed Injection, fosaprepitant, 1 mg (J1453) to Medicare fee-for-service in Maryland in 2024; the top five named groups hold 59% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
J1453 — Injection, fosaprepitant, 1 mg · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.
Snapshot covers the whole Maryland market — the table below shows the top 100 groups (free tier).
Medicare fee-for-service covers 75% of Medicare in Maryland; Medicare Advantage penetration 13% → 25% since 2020.
| # | Physician group | City | St | Specialty | Providers | J1453 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | GREATER BALTIMORE MEDICAL CENTER INC | BALTIMORE | MD | HOSPITALIST | 348 | 39,300 | 9.2% | — |
| 2 | MARYLAND ONCOLOGY HEMATOLOGY PA | LAUREL | MD | HEMATOLOGY/ONCOLOGY | 99 | 37,200 | 8.7% | (301) 982-9800 |
| 3 | MEDSTAR MEDICAL GROUP - SOUTHERN MARYLAND LLC | HOLLYWOOD | MD | INTERNAL MEDICINE | 236 | 30,000 | 7.0% | — |
| 4 | UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC | GLEN BURNIE | MD | NURSE PRACTITIONER | 458 | 24,750 | 5.8% | (410) 761-1222 |
| 5 | POTOMAC ONCOLOGY AND HEMATOLOGY, LLC | ROCKVILLE | MD | NURSE PRACTITIONER | 3 | 24,750 | 5.8% | (240) 618-0275 |
| 6 | FREDERICK HEALTH MEDICAL GROUP LLC | FREDERICK | MD | PHYSICIAN ASSISTANT | 202 | 23,700 | 5.5% | (240) 215-6310 |
| 7 | JOHNS HOPKINS UNIVERSITY | BALTIMORE | MD | NURSE PRACTITIONER | 2900 | 22,200 | 5.2% | (410) 502-4340 |
| 8 | CHITRA VENKATRAMAN MD PA | GREENBELT | MD | HEMATOLOGY/ONCOLOGY | 3 | 21,000 | 4.9% | (301) 345-1800 |
| 9 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | MD | PHYSICIAN ASSISTANT | 1699 | 13,800 | 3.2% | (310) 423-0674 |
| 10 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | MD | PHYSICIAN ASSISTANT | 3707 | 12,900 | 3.0% | (202) 429-2401 |
| 11 | LUTHERVILLE HEMATOLOGY AND ONCOLOGY SERVICES | LUTHERVILLE | MD | NURSE PRACTITIONER | 19 | 11,550 | 2.7% | (410) 494-9099 |
| 12 | UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT SAN ANTONIO | SAN ANTONIO | MD | PHYSICIAN ASSISTANT | 1326 | 5,100 | 1.2% | (210) 450-7044 |
*Share of Maryland's disclosed Medicare-FFS services for J1453, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing J1453 in Maryland — 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 →