NPPES file of Aug 9, 2026

Gaurab Basu, MD

Internal Medicine Physician · Boston, MA

Gaurab Basu, MD is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1538488812, issued on May 25, 2010. Check the license (Massachusetts 255713, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538488812
Name
Gaurab Basu
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
255713 MA
Self-reported in NPPES; status is on the state search
Practice location
75 Francis St, Boston, MA 02115
Phone
(617) 732-6040
Enumerated
May 25, 2010
Record last updated
Jul 16, 2025
Fax
(617) 566-1256
Medicare enrollment
Enrolled (PECOS I20130905000576); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2010
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 75 Francis St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
  2. Emily Aaronson, M.D.Emergency Medicine Physician1962791558
  3. Sarah Abbett, M.D.Anesthesiology Physician1902097736
  4. Christine Abbott, NPAdult Health Nurse Practitioner1851471940
  5. Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
  6. Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867

Verify Gaurab Basu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 255713
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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63% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,178 Medicare Part D claims for 121 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.

  1. Gaurab Basu1,178
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium95 claims
  2. Lisinopril78 claims
  3. Amlodipine Besylate63 claims
  4. Metformin Hcl Er56 claims
  5. Omeprazole42 claims
  6. Simvastatin40 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 one group practice

  1. Brigham And Womens Physicians Organization IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gaurab Basu among 6,825 internal medicine physician records in Massachusetts

Gaurab Basu, 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 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 35% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2010 · median 2004 among the 4,103 with a school on file
  • Record last updated2025 · 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).

2,320 internal medicine physician records list a practice address in Boston

They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marcy Carty, MD, MPHBoston, MA 021151326038928
  2. Peter Doyle, M.D.Boston, MA 021151770573487
  3. Pracha Eamranond, M.D.Boston, MA 021151073501656
  4. Mark Friedberg, M.D.Boston, MA 021151437149184
  5. Jaye Hefner, MDBoston, MA 021151053384867
  6. Allen Kachalia, MD JDBoston, MA 021151346231982
  7. Daniel Kuritzkes, MDBoston, MA 021151114917416
  8. Sylvia McKean, MDBoston, MA 021151316938954

Common questions

What is Gaurab Basu, MD's NPI number?

Gaurab Basu, MD's National Provider Identifier (NPI) is 1538488812, issued on May 25, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Gaurab Basu, MD located?

The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-6040. Providers update this record themselves, so call before visiting.

How can I verify Gaurab Basu, MD's license?

NPPES lists Massachusetts license number 255713, 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 Gaurab Basu, MD prescribe under Medicare Part D?

In 2024, Gaurab Basu, MD had 1,178 Medicare Part D claims for 121 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.