Doctor profile · Federal record
Dr. Brian Keroack, MD
Specialist (CMS: Rheumatology) · Portland, ME
- NPI 1891788659
- Accepts Medicare
- MIPS 93.1 / 100 · 2023
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
51 Sewall St
Portland, ME 041022643
(207) 774-5761
fax (207) 874-7478
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- October 9, 2008
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- Maine #013245
- Medicaid
- ME #269530099
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891788659. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
23,843
Distinct HCPCS
10
Medicare allowed
$418,807
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1602 |
Injection, golimumab, 1 mg, for intravenous use | 19,850 | 19 | $13 | |
J0897 |
Injection, denosumab, 1 mg | 1,141 | 12 | $23 | |
36415 |
Insertion of needle into vein for collection of blood sample | 320 | 163 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 305 | 178 | $126 | |
J7050 |
Infusion, normal saline solution, 250 cc | 288 | 46 | $1 | |
80053 |
Blood test, comprehensive group of blood chemicals | 239 | 124 | $10 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 234 | 114 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 157 | 116 | $90 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 156 | 37 | $65 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 150 | 27 | $132 |
In context: peer comparison
Among 4 peers in Portland Specialist, average services per provider: 932. This provider delivers 26× the peer median.Open Payments
Industry payments received
All-time total
$250
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| United Therapeutics Corporation | 2 | $249.94 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,954
Patients
693
Total drug cost
$4,281,948
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 655 | 166 | $6,337 |
| Methotrexate (Methotrexate Sodium) | Brand | 511 | 142 | $25,887 |
| Hydroxychloroquine Sulfate | Generic | 304 | 86 | $31,889 |
| Enbrel Sureclick (Etanercept) | Brand | 216 | 25 | $1,682,849 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 188 | 38 | $6,918 |
| Humira(Cf) Pen (Adalimumab) | Brand | 160 | 21 | $1,341,826 |
| Oxycodone Hcl | Generic | 150 | 26 | $5,728 |
| Leucovorin Calcium | Generic | 130 | 38 | $4,597 |
| Celecoxib | Generic | 128 | 35 | $9,037 |
| Meloxicam | Generic | 116 | 45 | $697 |
Hospital affiliations
Frequently asked questions
What is Dr. Brian Keroack's medical specialty?
Dr. Brian Keroack practices Specialist in Portland, ME.
Where does Dr. Brian Keroack practice?
Dr. Brian Keroack practices at 51 Sewall St, Portland, ME 041022643. Office phone: 2077745761.
What is Dr. Brian Keroack's NPI?
Dr. Brian Keroack's National Provider Identifier (NPI) is 1891788659, issued by NPPES.
Does Dr. Brian Keroack accept Medicare assignment?
Yes. Dr. Brian Keroack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Brian Keroack commonly perform?
Top Medicare-reported procedures in 2023: Injection, golimumab, 1 mg, for intravenous use (HCPCS J1602); Injection, denosumab, 1 mg (HCPCS J0897); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.