Internal Medicine, Hepatology · Weston, FL
NPI
1548225154
Since 2006
Specialty
Internal Medicine, Hepatology
Code 207RI0008X
Group practices
2
Medicare group memberships
Hospitals
2
Hospital affiliations
3100 Weston Rd
Weston, FL, 33331
Phone (954) 659-6760
Groups this clinician bills Medicare through
Medicare paid, 2024
$23K
293 services
Medicare patients, 2024
139
Average age 69
Drug cost, 2024
$816K
1,875 prescriptions
Company payments, 2025
$381
From 3 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Christopher B O'Brien was code 99233 (hospital e&m - subsequent), 78 times for 28 patients. In total Christopher B O'Brien billed 293 services in 21 codes, and Medicare paid $23K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2024-06-28.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99233 Hospital E&M - Subsequent | Facility | 78 | 28 | $94.92 | $7,404 |
| 99215 Office E&M - Established | Facility | 42 | 40 | $92.97 | $3,905 |
| 99214 Office E&M - Established | Facility | 29 | 24 | $78.37 | $2,273 |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Facility | 29 | 22 | $13.21 | $383 |
| 91200 Standard X-ray | Facility | 23 | 23 | $7.95 | $183 |
| 99205 Office E&M - New | Facility | 17 | 17 | $142.87 | $2,429 |
| 99223 Hospital E&M - Initial | Facility | 13 | 11 | $140.19 | $1,822 |
By year: 2022 $38K for 390 services; 2023 $34K for 306 services; 2024 $23K for 293 services.
Medicare prescription drug claims, 2024
In 2024, the drug Christopher B O'Brien prescribed most often to Medicare patients was Tacrolimus, with 204 prescriptions and refills. In total Christopher B O'Brien wrote 1,875 Medicare prescriptions that cost $816K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Tacrolimus Generic | 204 | 494 | 83 | $27K |
| Ozempic Semaglutide | 192 | 213 | 43 | $187K |
| Rosuvastatin Calcium Generic | 128 | 328 | 55 | $1,251 |
| Jardiance Empagliflozin | 89 | 200 | 39 | $113K |
| Carvedilol Generic | 76 | 170 | 33 | $511 |
| Sirolimus Generic | 65 | 136 | 26 | $19K |
| Mounjaro Tirzepatide | 64 | 71 | 18 | $76K |
| Ursodiol Generic | 55 | 129 | 30 | $14K |
| Vemlidy Tenofovir Alafenamide | 51 | 51 | Under 11 | $73K |
| Lamivudine Hbv Lamivudine | 49 | 111 | 20 | $18K |
| Omeprazole Generic | 47 | 127 | 23 | $496 |
| Mycophenolate Mofetil Generic | 46 | 99 | 17 | $3,354 |
| Nifedipine Er Nifedipine | 45 | 119 | 15 | $1,117 |
| Tamsulosin Hcl Generic | 37 | 105 | 15 | $346 |
| Metoprolol Tartrate Generic | 35 | 103 | 14 | $166 |
Brand drugs: - claims; generic drugs: 1,339 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Christopher B O'Brien $381 ($381 in general payments such as food, travel and fees) from 3 companies. The largest payer was Madrigal Pharmaceuticals with $232.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.