Brian J. Keroack, MD
Specialist · Portland, ME
Brian J. Keroack, MD is a specialist with a practice address in Portland, Maine, and NPI 1891788659, issued on Aug 26, 2005. Check the license (Maine 013245, as entered in NPPES) with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brian J. Keroack
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 013245 ME
Self-reported in NPPES; status is on the state search - Practice location
- 51 Sewall St, Portland, ME 04102
- Phone
- (207) 774-5761
- Enumerated
- Aug 26, 2005
- Record last updated
- Oct 9, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (207) 874-7478
- Medicaid ID
- 269530099 ME
- Medicare enrollment
- Enrolled (PECOS I20050628001085); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 248 in Maine → Look up another NPI →
Also registered at 51 Sewall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Crute, MDFamily Medicine Physician1508834441
- Brian Daikh, MDSpecialist1184617953
- Elizabeth Evans, PA-CMedical Physician Assistant1366616252
- Edward Fels, MDSpecialist1508086083
- Stephanie Gartner-Fanburg, MDRheumatology Physician1619914587
- Joshua Keller, M.D.Rheumatology Physician1578975439
Verify Brian J. Keroack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maine board licenses this profession
Search for license 013245Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average specialist in 2024
4,268 Medicare Part D claims for 638 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 505 claims were for opioids.
Most prescribed
- Prednisone714 claims
- Methotrexate564 claims
- Hydroxychloroquine Sulfate331 claims
- Enbrel Sureclick260 claims
- Hydrocodone-Acetaminophen196 claims
- Meloxicam196 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $249.94
2 payments; by number, the most common kind was food and beverage; the largest payer was United Therapeutics Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- York HospitalYork, ME · Acute Care Hospitals4 of 5 stars
- Rheumatology Associates P.A.Portland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Brian J. Keroack among 248 specialist records in Maine
Brian J. Keroack, MD is one of 248 specialist records with a practice address in Maine. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 13% of these records are
- Graduated1985 · median 1992 among the 32 with a school on file
- Record last updated2008 · 87% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Maine
There are 248 specialist records in Maine.
All 248 in Maine → Every provider in Portland → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Valerie Blais, MTPortland, ME 041021093768129
- Barbara Chilmonczyk, M.D.Portland, ME 041021497793210
- Brian Daikh, MDPortland, ME 041021184617953
- Douglas Dellefemine, LMTPortland, ME 041021982847000
- David Ernst, M.D.Portland, ME 041021386635308
- Edward Fels, MDPortland, ME 041021508086083
- Michael Marchetta, MTPortland, ME 041021700813847
- Jannett Matusiak, MTPortland, ME 041021871535146
Common questions
What is Brian J. Keroack, MD's NPI number?
Brian J. Keroack, MD's National Provider Identifier (NPI) is 1891788659, issued on Aug 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Brian J. Keroack, MD located?
The NPPES record lists a practice address at 51 Sewall St, Portland, ME, 04102. Phone: (207) 774-5761. Providers update this record themselves, so call before visiting.
How can I verify Brian J. Keroack, MD's license?
NPPES lists Maine license number 013245, as entered by the provider. Search the Maine board that licenses this profession; the NPPES record confirms identity only.
How much does Brian J. Keroack, MD prescribe under Medicare Part D?
In 2024, Brian J. Keroack, MD had 4,268 Medicare Part D claims for 638 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Brian J. Keroack, MD's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.