Erin Marie Byrt, M.D.
Hospitalist Physician · Portland, ME
Erin Marie Byrt, M.D. is a hospitalist physician with a practice address in Portland, Maine, and NPI 1497286710, issued on Mar 27, 2017. Check the license (Maine MD23705, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Erin Marie Byrt
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD23705 ME
Self-reported in NPPES; status is on the state search - Practice location
- 22 Bramhall St, Portland, ME 04102
- Phone
- (207) 662-0111
- Enumerated
- Mar 27, 2017
- Record last updated
- Jul 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200911000311); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2017
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 245 in Maine → Look up another NPI →
Also registered at 22 Bramhall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Erin Marie Byrt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD23705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average hospitalist physician in 2024
226 Medicare Part D claims for 73 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Furosemide20 claims
- Omeprazole14 claims
- Lisinopril13 claims
- Citalopram Hbr12 claims
- Prednisone12 claims
- Cefdinir11 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).
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Marie Byrt among 245 hospitalist physician records in Maine
Erin Marie Byrt, M.D. is one of 245 hospitalist physician records with a practice address in Maine. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 69% of them.
- NPI issued2017 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2017 · median 2012 among the 206 with a school on file
- Record last updated2020 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
81 hospitalist physician records list a practice address in Portland
They are 81 of the 6,022 NPPES records with a practice address in Portland, and 245 hospitalist physician records in Maine.
All 245 in Maine → Every provider in Portland → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Lisa Almeder, MDPortland, ME 041021033238332
- Jeffrey Balke, MDPortland, ME 041021285694109
- Lane Beatty, MDPortland, ME 041021467533166
- Thomas Charrette, MDPortland, ME 041021679565626
- Anne Dean, MDPortland, ME 041021801932884
- Kathryn Diamond-Falk, MDPortland, ME 041021306045034
- Marc Jacquet, MDPortland, ME 041021740212364
- Tara Lagu, MDPortland, ME 041021306943980
Common questions
What is Erin Marie Byrt, M.D.'s NPI number?
Erin Marie Byrt, M.D.'s National Provider Identifier (NPI) is 1497286710, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Erin Marie Byrt, M.D. located?
The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-0111. Providers update this record themselves, so call before visiting.
How can I verify Erin Marie Byrt, M.D.'s license?
NPPES lists Maine license number MD23705, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erin Marie Byrt, M.D. prescribe under Medicare Part D?
In 2024, Erin Marie Byrt, M.D. had 226 Medicare Part D claims for 73 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Erin Marie Byrt, M.D.'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.