Nir Mordechai Bar, MD
Gastroenterology Physician · Boston, MA
Nir Mordechai Bar, MD is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1588330658, issued on Aug 19, 2021. Check the license (Massachusetts 289499, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Nir Mordechai Bar
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 289499 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-0270
- Enumerated
- Aug 19, 2021
- Record last updated
- Oct 10, 2024
- Medicare enrollment
- Enrolled (PECOS I20241112003069); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 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.
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Verify Nir Mordechai Bar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 289499Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average gastroenterology physician in 2024
47 Medicare Part D claims for 38 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-G25 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
- Massachusetts General Physicians Organization IncDanvers, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nir Mordechai Bar among 686 gastroenterology physician records in Massachusetts
Nir Mordechai Bar, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 97% of them.
- NPI issued2021 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2004 among the 491 with a school on file
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Diane Abraczinskas, MDBoston, MA 021141811988488
- Karin Andersson, MDBoston, MA 021141972585511
- Bernard Aserkoff, MDBoston, MA 021141851381123
- Cheryl Bunker, MDBoston, MA 021141952384752
- Andrew Chan, M.D.Boston, MA 021141982600144
- Raymond Chung, MDBoston, MA 021141154311769
- Daniel Chung, MDBoston, MA 021141710978994
- Peter Kelsey, MDBoston, MA 021141255313383
Common questions
What is Nir Mordechai Bar, MD's NPI number?
Nir Mordechai Bar, MD's National Provider Identifier (NPI) is 1588330658, issued on Aug 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Nir Mordechai Bar, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-0270. Providers update this record themselves, so call before visiting.
How can I verify Nir Mordechai Bar, MD's license?
NPPES lists Massachusetts license number 289499, 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 Nir Mordechai Bar, MD prescribe under Medicare Part D?
In 2024, Nir Mordechai Bar, MD had 47 Medicare Part D claims for 38 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.