Marjorie Antoinette Janvier
Internal Medicine Physician · Roxbury, MA
Marjorie Antoinette Janvier is an internal medicine physician with a practice address in Roxbury, Massachusetts, and NPI 1598931628, issued on May 8, 2008. Check the license (Massachusetts 232734, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marjorie Antoinette Janvier
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 232734 MA
245681 MA
245681 MI
Self-reported in NPPES; status is on the state search - Practice location
- 45 Dimock St, Roxbury, MA 02119
- Phone
- (617) 442-8800
- Enumerated
- May 8, 2008
- Record last updated
- Feb 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (617) 541-8472
- Medicare enrollment
- Enrolled (PECOS I20110412000462); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 45 Dimock St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adeyemi Adeniyi, A-GNPPrimary Care Nurse Practitioner1780238659
- Nikita Aneja, ODOptometrist1861984031
- Karina Arias, LICSWClinical Social Worker1386191583
- Kira Armajani, LICSWClinical Social Worker1326395435
- Khaled Asaad, BDSPediatric Dentistry1295296671
- Melanie Baker, RD, LDNPediatric Nutrition Registered Dietitian1598894719
Verify Marjorie Antoinette Janvier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 232734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,020 Medicare Part D claims for 127 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 82 claims were for opioids.
Most prescribed
- Amlodipine Besylate159 claims
- Atorvastatin Calcium158 claims
- Metformin Hcl83 claims
- Lisinopril70 claims
- Losartan Potassium69 claims
- Spironolactone69 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.
Industry payments in 2024: $33.00
1 payment: food and beverage; the largest payer was Theratechnologies Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Uphams Corner Health Committee IncDorchester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marjorie Antoinette Janvier among 6,825 internal medicine physician records in Massachusetts
Marjorie Antoinette Janvier is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.
- NPI issued2008 · 55% of these records are older, 40% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2004 among the 4,103 with a school on file
- Record last updated2020 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in Roxbury
They are 9 of the 1,027 NPPES records with a practice address in Roxbury, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Roxbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Roshni Daver, MBBS, MDRoxbury, MA 021191316297146
- Clara JonesRoxbury, MA 021191669534418
- Anandita Kishore, MDRoxbury, MA 021191245977099
- Myechia Minter-Jordan, M.D., MBARoxbury, MA 021191497705628
- Monica Morlote, M.D.Roxbury, MA 021191093752735
- Daniele Restifo, M.D.Roxbury, MA 021191336639426
- Julie Tishler, M.D.Roxbury, MA 021191093755530
- Ana Sofia Warner, MD,MBABoston, MA 021191104356351
Common questions
What is Marjorie Antoinette Janvier's NPI number?
Marjorie Antoinette Janvier's National Provider Identifier (NPI) is 1598931628, issued on May 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marjorie Antoinette Janvier located?
The NPPES record lists a practice address at 45 Dimock St, Roxbury, MA, 02119. Phone: (617) 442-8800. Providers update this record themselves, so call before visiting.
How can I verify Marjorie Antoinette Janvier's license?
NPPES lists Massachusetts license number 232734, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marjorie Antoinette Janvier prescribe under Medicare Part D?
In 2024, Marjorie Antoinette Janvier had 2,020 Medicare Part D claims for 127 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.