Marc P. Mansour, MD
Internal Medicine Physician · South Weymouth, MA
Marc P. Mansour, MD is an internal medicine physician with a practice address in South Weymouth, Massachusetts, and NPI 1417934522, issued on Dec 29, 2005. Check the license (Massachusetts 74727, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Marc P. Mansour
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 74727 MA
Self-reported in NPPES; status is on the state search - Practice location
- 541 Main St, South Weymouth, MA 02190
- Phone
- (781) 952-1280
- Enumerated
- Dec 29, 2005
- Record last updated
- Mar 13, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (781) 952-1570
- Medicaid ID
- 3107051 MA
- Medicare enrollment
- Enrolled (PECOS I20050525000132); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 541 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dana AnstettMental Health Counselor1770857286
- Tara Armstrong, PA-CMedical Physician Assistant1811049414
- Richard Ashburn, MDPulmonary Disease Physician1861492746
- John Casey, D.C.Chiropractor1700805181
- Charles Chalko, D.O.Internal Medicine Physician1548218126
- Jeanne Colton, NPNurse Practitioner1992782072
Verify Marc P. Mansour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 74727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,159 Medicare Part D claims for 1,386 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 212 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,485 claims
- Lisinopril1,032 claims
- Amlodipine Besylate588 claims
- Simvastatin444 claims
- Losartan Potassium419 claims
- Metformin Hcl416 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.
Bills Medicare through 2 group practices
- Harbor Medical Associates IncS Weymouth, MA
- Mass General Brigham Medical Group Suburban Massachusetts IncNewton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc P. Mansour among 6,825 internal medicine physician records in Massachusetts
Marc P. Mansour, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1990 · median 2004 among the 4,103 with a school on file
- Record last updated2014 · 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).
21 internal medicine physician records list a practice address in South Weymouth
They are 21 of the 445 NPPES records with a practice address in South Weymouth, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in South Weymouth → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Aboualkheir Alzaim, MDSouth Weymouth, MA 021901073595260
- Brian Battista, MDSouth Weymouth, MA 021901821075961
- Charles Chalko, D.O.South Weymouth, MA 021901548218126
- Brian Dolan, M.D.Weymouth, MA 021901952345928
- Judy Dunal, MDSouth Weymouth, MA 021901619954757
- Vitaly Ermolin, MDWeymouth, MA 021901114901485
- Andrea Kopasz, M.D.South Weymouth, MA 021901770698573
- Robert Lille, MDSouth Weymouth, MA 021901548247695
Common questions
What is Marc P. Mansour, MD's NPI number?
Marc P. Mansour, MD's National Provider Identifier (NPI) is 1417934522, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc P. Mansour, MD located?
The NPPES record lists a practice address at 541 Main St, South Weymouth, MA, 02190. Phone: (781) 952-1280. Providers update this record themselves, so call before visiting.
How can I verify Marc P. Mansour, MD's license?
NPPES lists Massachusetts license number 74727, 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 Marc P. Mansour, MD prescribe under Medicare Part D?
In 2024, Marc P. Mansour, MD had 14,159 Medicare Part D claims for 1,386 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.