Mary Ellen O'Brien, M.D.
Internal Medicine Physician · Providence, RI
Mary Ellen O'Brien, M.D. is an internal medicine physician with a practice address in Providence, Rhode Island, and NPI 1144425000, issued on Jun 19, 2007. Check the license (Rhode Island LP01243, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Mary Ellen O'Brien
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- LP01243 RI
Self-reported in NPPES; status is on the state search - Practice location
- 593 Eddy St, Providence, RI 02903
- Phone
- (401) 444-4083
- Enumerated
- Jun 19, 2007
- Record last updated
- Jan 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (401) 444-3056
- Medicare enrollment
- Enrolled (PECOS I20100812000637); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 593 Eddy St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Abernathy, MDAnesthesiology Physician1942257217
- Karen Abi Chebl, MDStudent in an Organized Health Care Education/Training Program1255179552
- Georges Abi Roustom, MDAnesthesiology Physician1548871908
Verify Mary Ellen O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license LP01243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 82.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Coastal Medical AssociatesWeymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Ellen O'Brien among 1,033 internal medicine physician records in Rhode Island
Mary Ellen O'Brien, M.D. is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 57% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2007 · median 2006 among the 590 with a school on file
- Record last updated2010 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
511 internal medicine physician records list a practice address in Providence
They are 511 of the 9,647 NPPES records with a practice address in Providence, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Providence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kristin Anderson, MDProvidence, RI 029031740236173
- Andrew Bostom, MDProvidence, RI 029031902850274
- Sybil Cineas, MDProvidence, RI 029031053364984
- Heinrich Elinzano, M.D.Providence, RI 029031063477032
- Rebekah Gardner, MDProvidence, RI 029031275597536
- Sajeev Handa, MDProvidence, RI 029031528012747
- William Mason, M.D.Providence, RI 029031679579338
- Donnah Mathews, MDProvidence, RI 029031942288097
Common questions
What is Mary Ellen O'Brien, M.D.'s NPI number?
Mary Ellen O'Brien, M.D.'s National Provider Identifier (NPI) is 1144425000, issued on Jun 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Ellen O'Brien, M.D. located?
The NPPES record lists a practice address at 593 Eddy St, Providence, RI, 02903. Phone: (401) 444-4083. Providers update this record themselves, so call before visiting.
How can I verify Mary Ellen O'Brien, M.D.'s license?
NPPES lists Rhode Island license number LP01243, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Mary Ellen O'Brien, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.8 of 100, reported for the practice group. 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.