Charles Barsam, M.D.
Internal Medicine Physician · Cambridge, MA
Charles Barsam, M.D. is an internal medicine physician with a practice address in Cambridge, Massachusetts, and NPI 1760470041, issued on Oct 11, 2005. Check the license (Massachusetts 221205, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles Barsam
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 221205 MA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Concord Ave, Cambridge, MA 02138
- Phone
- (617) 864-8822
- Enumerated
- Oct 11, 2005
- Entity
- Type 1 · individual
Also registered at 725 Concord Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Barsam, M.D.Ophthalmology Physician1245206176
- Amy Bebergal, LICSWClinical Social Worker1417648767
- Kenneth Bernstein, M.D.Internal Medicine Physician1134117781
- John Danchik, D.C.Chiropractor1386748960
- Joycelyn Datu, MDInternal Medicine Physician1568421279
- Anthony Disciullo, MDGynecology Physician1972573913
Verify Charles Barsam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 221205Check 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
1,782 Medicare Part D claims for 531 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Prednisolone Acetate507 claims
- Ketorolac Tromethamine269 claims
- Neomycin-Polymyxin-Dexameth234 claims
- Latanoprost210 claims
- Ofloxacin175 claims
- Brimonidine Tartrate64 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 practice group's Medicare quality score for 2023: 100 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).
Industry payments in 2024: $791.77
37 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 65,274 providers of this specialty with any payment received $2,536.66 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.
2 hospital and facility affiliations
- North Suburban Eye Associates LLCWaltham, MA
- North Suburban Eye Associates PCWakefield, 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.
300 internal medicine physician records list a Cambridge practice address
They are 300 of the 5,145 NPPES records with a Cambridge practice address, and 7,865 internal medicine physician records in Massachusetts.
All 300 in Cambridge → All 7,865 in Massachusetts → Every provider in Cambridge →
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 Charles Barsam, M.D.'s NPI number?
Charles Barsam, M.D.'s National Provider Identifier (NPI) is 1760470041, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles Barsam, M.D. located?
The NPPES record lists a practice address at 725 Concord Ave, Cambridge, MA, 02138. Phone: (617) 864-8822. Providers update this record themselves, so call before visiting.
How can I verify Charles Barsam, M.D.'s license?
NPPES lists Massachusetts license number 221205, 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 Charles Barsam, M.D. prescribe under Medicare Part D?
In 2024, Charles Barsam, M.D. had 1,782 Medicare Part D claims for 531 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Charles Barsam, M.D.'s Medicare quality score?
The 2023 MIPS final score is 100 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), 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.