Marianne Barry, M.D.
Internal Medicine Physician · Boston, MA
Marianne Barry, M.D. is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1568692143, issued on Jul 17, 2009. Check the license (Massachusetts 249042, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marianne Barry
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 249042 MA
241193 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- Jul 17, 2009
- Entity
- Type 1 · individual
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ahmad AboalfarajSurgery Physician1538517651
- Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250
Verify Marianne Barry in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 249042Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
169 Medicare Part D claims for 54 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Trelegy Ellipta31 claims
- Albuterol Sulfate Hfa21 claims
- Prednisone20 claims
- Incruse Ellipta14 claims
- Anoro Ellipta12 claims
- Wixela Inhub12 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.
2 hospital and facility affiliations
- Lgh Medical Group, Inc.Lowell, MA
- Pratt Medical Group IncBoston, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
3,060 internal medicine physician records list a Boston practice address
They are 3,060 of the 41,865 NPPES records with a Boston practice address, and 7,865 internal medicine physician records in Massachusetts.
All 3,060 in Boston → All 7,865 in Massachusetts → Every provider in Boston →
Other internal medicine physician records in Massachusetts
- Nawal Aamir, MDWorcester, MA1588248926
- Zainab AbbasWorcester, MA1609028000
- Nooshin Abbasi, MD MPHNewton, MA1831888353
- Lauren Abbate, MDBoston, MA1922099621
- Bassima Abdallah, MDBoston, MA1912327305
- Samah Abdallah, MDBrighton, MA1730814971
- Omar Abdel-Wahab, M.D.Boston, MA1023042777
- Salah Abdelgadir, MDBoston, MA1891280954
- Mahmoud Abdelghany, M.D.Springfield, MA1134479629
- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Marianne Barry, M.D.'s NPI number?
Marianne Barry, M.D.'s National Provider Identifier (NPI) is 1568692143, issued on Jul 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Marianne Barry, M.D. located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Marianne Barry, M.D.'s license?
NPPES lists Massachusetts license number 249042, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marianne Barry, M.D. prescribe under Medicare Part D?
In 2024, Marianne Barry, M.D. had 169 Medicare Part D claims for 54 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.