Dr. Hiroshi Mashimo, MD, PhD

  • Jamaica Plain, MA
  • Gastroenterologist
NPI1073616348
Publications
64
Clinical trials
1
Hospital affiliations
1
Industry payments
$5,660
State license
1
Practice address
150 S. Huntington Avenue, Jamaica Plain, MA 02130
Practice phone
Call (617) 232-9500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Jamaica Plain VA Medical Center

Hospital · Jamaica Plain, Massachusetts

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Dr. Hiroshi Mashimo is a gastroenterologist in Jamaica Plain, Massachusetts

Dr. Mashimo practices at Jamaica Plain VA Medical Center in Jamaica Plain, Massachusetts, part of Veterans Health Administration.

Dr. Mashimo's NPI, 1073616348, was assigned on September 5, 2006. Dr. Mashimo holds Massachusetts license 73215.

NPI and contact details
NPI enumeration date
September 5, 2006
NPI status
Active
Practice phone
(617) 232-9500
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Hiroshi Mashimo practices at Jamaica Plain VA Medical Center in Jamaica Plain, Massachusetts

Dr. Mashimo's primary practice is Jamaica Plain VA Medical Center, at 150 S. Huntington Avenue, Jamaica Plain, MA 02130 in Suffolk County. The practice phone is (617) 232-9500.

Source: Dmand AI Affiliation Data

Dr. Hiroshi Mashimo is affiliated with 1 site of care

Dr. Mashimo's primary practice is Jamaica Plain VA Medical Center in Jamaica Plain, Massachusetts, part of Veterans Health Administration.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Hiroshi Mashimo's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mashimo practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Jamaica Plain VA Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dmand AI maps EHR vendors, IT decision makers and buying committees across Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Hiroshi Mashimo is one of 597 gastroenterologists in Massachusetts

Gastroenterology is Dr. Mashimo's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mashimo is licensed in Massachusetts.

Specialties and state licenses

  • Gastroenterology, MassachusettsPrimaryLicense 73215 · taxonomy 207RG0100X

Gastroenterologists near Dr. Mashimo

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Hiroshi Mashimo's patients have a median age of 44

Across all payers, Dmand AI patient panel data puts Dr. Mashimo's median patient age at 44, with 50% women.

Dr. Mashimo's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 44

Patient panel by sex, all payers

  • Women50%
  • Men50%

Source: Dmand AI Patient Panel Data

Dr. Hiroshi Mashimo has 64 publications on record

Dmand AI links 64 papers to Dr. Mashimo, published from 2010 to 2025. 2020 was the busiest year, with 5. The most frequent topics are Barrett Esophagus, Tomography, Optical Coherence and Esophageal Neoplasms. Dr. Mashimo has published most often in Ann N Y Acad Sci. Dr. Mashimo's most frequent co-authors are Wai-Kit Lo, MD, Mark Daniel Franciosa, MD and Virendra Joshi, MD.

Papers64
Years published2010 to 2025

Dr. Mashimo's papers by year, 2015 to 2025

Topics Dr. Mashimo writes about most

  • Barrett Esophagus
  • Tomography, Optical Coherence
  • Esophageal Neoplasms
  • Esophagoscopy
  • Adenocarcinoma
  • Esophagus
  • Esophagogastric Junction
  • Gastroesophageal Reflux

Dr. Mashimo's most frequent co-authors

Recent publications by Dr. Mashimo

See all 64 publications and co-authors

See who Dr. Mashimo researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mashimo works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Hiroshi Mashimo has worked on 1 clinical trial

Dmand AI links Dr. Mashimo to 1 clinical trial. Conditions studied include Gastroparesis and Paralysis.

Conditions in Dr. Mashimo's trials

  • Gastroparesis
  • Paralysis

Investigators on the most trials with Dr. Mashimo

Recent clinical trials with Dr. Mashimo

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Hiroshi Mashimo received $5,660 in industry payments from 2016 to 2018

CMS Open Payments shows 28 general payments to Dr. Mashimo from 5 drug and device companies from 2016 to 2018. Travel and lodging make up the largest share, 60% of the total. Theravance Biopharma, Inc. paid the most, $2,535. It also lists 6 research payments totaling $492 in 2018.

General payments to Dr. Mashimo by program year, 2016 to 2018

General payments to Dr. Mashimo by kind, 2016 to 2018

$5.7Kin total
  • Travel and lodging$3,40160%
  • Food and beverage$1,59528%
  • Consulting fees$5009%
  • Speaker and faculty fees$1643%

Companies that paid Dr. Mashimo the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Mashimo

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Hiroshi Mashimo's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Hiroshi Mashimo

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Hiroshi Mashimo's NPI number?

Dr. Hiroshi Mashimo's NPI number is 1073616348. It was assigned on September 5, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Hiroshi Mashimo?

Dr. Hiroshi Mashimo is a gastroenterologist in Jamaica Plain, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Hiroshi Mashimo practice?

Dr. Mashimo practices at 150 S. Huntington Avenue, Jamaica Plain, MA 02130. Dr. Mashimo's primary practice is Jamaica Plain VA Medical Center in Jamaica Plain, Massachusetts, part of Veterans Health Administration.

What is Dr. Hiroshi Mashimo's office phone number?

The practice phone on file for Dr. Mashimo is (617) 232-9500.

What is Dr. Hiroshi Mashimo's medical license number?

Dr. Mashimo holds Massachusetts license 73215.

Which hospitals is Dr. Hiroshi Mashimo affiliated with?

Dr. Mashimo practices at Jamaica Plain VA Medical Center in Jamaica Plain, Massachusetts.

Has Dr. Hiroshi Mashimo received payments from drug or device companies?

CMS Open Payments shows $5,660 in general payments to Dr. Mashimo from 5 companies from 2016 to 2018. The largest total came from Theravance Biopharma, Inc.

How long has Dr. Hiroshi Mashimo been practicing?

Dr. Mashimo's NPI was assigned in 2006.

Does Dr. Hiroshi Mashimo do research?

Dmand AI links 64 publications to Dr. Mashimo, published from 2010 to 2025. Dr. Mashimo has worked on 1 clinical trial.

Who does Dr. Hiroshi Mashimo publish with?

Dr. Mashimo's most frequent co-authors are Wai-Kit Lo, MD (4 shared papers), Mark Daniel Franciosa, MD (2 shared papers) and Virendra Joshi, MD (2 shared papers).

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