NPPES file of Aug 9, 2026

Warren David Backman, MBBS

Geriatric Medicine (Internal Medicine) Physician · Boston, MA

Warren David Backman, MBBS is a geriatric medicine (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1174910574, issued on Apr 23, 2015. Check the license (Massachusetts 282027, 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
1174910574
Name
Warren David Backman
Credential
MBBS
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
282027 MA
Self-reported in NPPES; status is on the state search
Practice location
55 Fruit St, Boston, MA 02114
Phone
(617) 726-4600
Enumerated
Apr 23, 2015
Record last updated
Jun 26, 2026
Medicare enrollment
Enrolled (PECOS I20200818003893); accepts Medicare assignment
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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8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →

Also registered at 55 Fruit St

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

  1. Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
  2. Matthew AbadirAnesthesiology Physician1699120550
  3. Taimur AbbasiInternal Medicine Physician1841673522
  4. Megan Abbott, MDAnesthesiology Physician1730839333
  5. Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
  6. Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590

Verify Warren David Backman 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 282027    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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40% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

2,533 Medicare Part D claims for 241 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 38 claims were for opioids.

  1. Warren Backman2,533
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium330 claims
  2. Lisinopril151 claims
  3. Amlodipine Besylate124 claims
  4. Levothyroxine Sodium86 claims
  5. Metoprolol Succinate82 claims
  6. Eliquis77 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. Massachusetts General Physicians Organization IncBoston, MA

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

Warren David Backman among 225 geriatric medicine (internal medicine) physician records in Massachusetts

Warren David Backman, MBBS is one of 225 geriatric medicine (internal medicine) physician records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 83% of them.

  • NPI issued2015 · 83% of these records are older, 15% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2013 · median 2000 among the 119 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts

There are 225 geriatric medicine (internal medicine) physician records in Massachusetts.

All 225 in Massachusetts → Every provider in Boston → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Elizabeth Castillo, MD PHDBoston, MA 021141932176443
  2. Sevdenur Cizginer Konuk, MD, MPHBoston, MA 021141881906725
  3. Kent Creamer, MDBoston, MA 021141730136508
  4. Ana Cecilia Cury, M.D.Boston, MA 021141437290210
  5. Esteban Franco Garcia, M.DBoston, MA 021141861712648
  6. Kathryn Hanley, M.D.Boston, MA 021141396079307
  7. Ardeshir Hashmi, M.D.Boston, MA 021141619143492
  8. Amanda Hernandez, M.D.Boston, MA 021141891062691

Common questions

What is Warren David Backman, MBBS's NPI number?

Warren David Backman, MBBS's National Provider Identifier (NPI) is 1174910574, issued on Apr 23, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Warren David Backman, MBBS located?

The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-4600. Providers update this record themselves, so call before visiting.

How can I verify Warren David Backman, MBBS's license?

NPPES lists Massachusetts license number 282027, 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 Warren David Backman, MBBS prescribe under Medicare Part D?

In 2024, Warren David Backman, MBBS had 2,533 Medicare Part D claims for 241 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.