Rheumatology · Portland, ME
NPI
1891788659
Since 2005
Specialty
Rheumatology
Code 174400000X
Group practices
2
Medicare group memberships
Hospitals
5
Hospital affiliations
51 Sewall St
Portland, ME, 04102
Phone (207) 774-5761
Groups this clinician bills Medicare through
Medicare paid, 2024
$901K
91,049 services
Medicare patients, 2024
408
Average age 74
Drug cost, 2024
$6.5M
4,268 prescriptions
Company payments, 2025
$16.16
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Brian J Keroack was code J3262 (injection, tocilizumab, 1 mg), 39,780 times for 12 patients. In total Brian J Keroack billed 91,049 services in 101 codes, and Medicare paid $901K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2008-10-09.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J3262 Injection, tocilizumab, 1 mg | Office | 39,780 | 12 | $4.70 | $187K |
| J1602 Injection, golimumab, 1 mg, for intravenous use | Office | 19,000 | 24 | $9.10 | $173K |
| J1010 Injection, methylprednisolone acetate, 1 mg | Office | 4,920 | 42 | $0.10 | $504 |
| J0897 Injection, denosumab, 1 mg | Office | 1,260 | 12 | $20.43 | $26K |
| 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 | Office | 369 | 228 | $11.36 | $4,193 |
| 36415 Venipuncture Blood Collection | Office | 343 | 172 | $8.65 | $2,967 |
| J7050 Infusion, normal saline solution, 250 cc | Office | 324 | 55 | $0.52 | $168 |
| 99214 Office E&M - Established | Office | 311 | 182 | $85.20 | $26K |
| 80053 Clinical Chemistry | Office | 267 | 131 | $10.35 | $2,763 |
| 85025 Blood Count | Office | 238 | 120 | $7.61 | $1,811 |
| 96413 Chemotherapy Administration | Office | 191 | 32 | $98.59 | $19K |
| 96365 Intravenous Infusion, Hydration | Office | 148 | 37 | $45.74 | $6,770 |
| 99213 Office E&M - Established | Office | 133 | 100 | $62.53 | $8,316 |
| 86140 Clinical Chemistry | Office | 117 | 73 | $5.08 | $594 |
| 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 | 106 | 65 | $13.27 | $1,407 |
By year: 2022 $876K for 62,095 services; 2023 $825K for 69,682 services; 2024 $901K for 91,049 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 343 | 172 | $8.65 | $2,967 |
| 80053 Clinical Chemistry | 267 | 131 | $10.35 | $2,763 |
| 85025 Blood Count | 238 | 120 | $7.61 | $1,811 |
| 86140 Clinical Chemistry | 117 | 73 | $5.08 | $594 |
| 85651 Clinical Chemistry | 87 | 58 | $4.18 | $364 |
| 82306 Clinical Chemistry | 54 | 41 | $29.01 | $1,567 |
| 89051 Blood Count | 19 | 12 | $5.49 | $104 |
| 84443 Clinical Chemistry | 19 | 19 | $16.46 | $313 |
| 84550 Clinical Chemistry | 19 | 14 | $4.43 | $84.17 |
| 81000 Clinical Chemistry | 15 | 12 | $3.94 | $59.1 |
Medicare prescription drug claims, 2024
In 2024, the drug Brian J Keroack prescribed most often to Medicare patients was Prednisone, with 714 prescriptions and refills. In total Brian J Keroack wrote 4,268 Medicare prescriptions that cost $6.5M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Prednisone Generic | 714 | 1,415 | 186 | $4,332 |
| Methotrexate Methotrexate Sodium | 564 | 1,361 | 149 | $13K |
| Hydroxychloroquine Sulfate Generic | 331 | 858 | 95 | $19K |
| Enbrel Sureclick Etanercept | 260 | 280 | 30 | $2.0M |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 196 | 196 | 48 | $7,981 |
| Meloxicam Generic | 196 | 378 | 68 | $835 |
| Humira(Cf) Pen Adalimumab | 168 | 200 | 23 | $1.4M |
| Oxycodone Hcl Generic | 154 | 154 | 28 | $4,273 |
| Allopurinol Generic | 142 | 343 | 39 | $1,416 |
| Leucovorin Calcium Generic | 137 | 369 | 38 | $3,925 |
| Xeljanz Xr Tofacitinib Citrate | 115 | 123 | 13 | $696K |
| Celecoxib Generic | 113 | 210 | 31 | $7,033 |
| Enbrel Etanercept | 82 | 97 | 11 | $645K |
| Colchicine Generic | 81 | 139 | 22 | $5,581 |
| Folic Acid Generic | 59 | 135 | 17 | $558 |
Brand drugs: - claims; generic drugs: 3,362 claims; opioid claims: 505.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Brian J Keroack $16.16 ($16.16 in general payments such as food, travel and fees) from 1 company. The largest payer was Genentech USA, Inc. with $16.16.
| Company | Payments | Amount |
|---|---|---|
| Genentech USA, Inc. ROG.SW | 1 | $16.16 |
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.