Dr. Hiroki Nishimura, MD
- Part D claims, 2024
- 91
- Hospital affiliations
- 1
- Industry payments
- $642
- Medical groups
- 3
- State license
- 1
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nishimura's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Hiroki Nishimura is an internist in Valhalla, New York
Dr. Nishimura practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Nishimura's NPI, 1376063792, was assigned on June 27, 2017. Dr. Nishimura graduated from Other in 2012. Dr. Nishimura holds Hawaii license MD-20856.
- NPI
- 1376063792NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032682158
- NPI enumeration date
- June 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hiroki Nishimura practices in Boston and Valhalla
Dr. Nishimura's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500. The NPI Registry lists Dr. Nishimura's practice address as 100 Woods Rd, Valhalla, NY 10595-1530.
- Brigham and Women's HospitalPrimary75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
- NPI Registry address100 Woods Rd, Valhalla, NY 10595-1530Phone(914) 493-7000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Hiroki Nishimura is affiliated with 1 site of care and 3 medical groups
Dr. Nishimura's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Nishimura to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hiroki Nishimura's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nishimura practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Hiroki Nishimura is one of 9,643 internists in New York
Internal medicine is Dr. Nishimura's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nishimura is licensed in Hawaii.
Specialties and state licenses
- Internal medicine, HawaiiPrimary
Internists near Dr. Nishimura
Counts of internists 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. Hiroki Nishimura wrote 91 Medicare Part D claims in 2024
In 2024, Dr. Nishimura wrote 91 Medicare Part D claims. 86% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $6,201 in total drug cost.
Dr. Nishimura's Part D claims by kind of drug, 2024
- Generic78 claims86%
- Brand-name13 claims14%
Dr. Nishimura's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Hiroki Nishimura takes part in Medicare
Dr. Nishimura accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Dr. Hiroki Nishimura received $642 in industry payments from 2024 to 2025
CMS Open Payments shows 5 general payments to Dr. Nishimura from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $376.
General payments to Dr. Nishimura by program year, 2024 to 2025
Companies that paid Dr. Nishimura the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hiroki Nishimura graduated from Other
Dr. Nishimura graduated from Other in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Hiroki Nishimura's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Hiroki Nishimura
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. Hiroki Nishimura's NPI number?
Dr. Hiroki Nishimura's NPI number is 1376063792. It was assigned on June 27, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Hiroki Nishimura?
Dr. Hiroki Nishimura is an internist in Valhalla, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Hiroki Nishimura practice?
Dr. Nishimura practices at 75 Francis Street, Boston, MA 02115. Dr. Nishimura also practices at 100 Woods Rd, Valhalla, NY 10595-1530. Dr. Nishimura's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Nishimura to 2 medical groups.
What is Dr. Hiroki Nishimura's office phone number?
The practice phone on file for Dr. Nishimura is (617) 732-5500.
What is Dr. Hiroki Nishimura's medical license number?
Dr. Nishimura holds Hawaii license MD-20856.
Which hospitals is Dr. Hiroki Nishimura affiliated with?
Dr. Nishimura practices at Brigham and Women's Hospital in Boston, Massachusetts.
What medical group is Dr. Hiroki Nishimura part of?
Dr. Nishimura is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Nishimura to 2 more medical groups.
Does Dr. Hiroki Nishimura accept Medicare?
Yes. CMS lists Dr. Nishimura as accepting Medicare assignment.
Where did Dr. Hiroki Nishimura go to medical school?
Dr. Nishimura graduated from Other in 2012.
What drugs does Dr. Hiroki Nishimura prescribe most?
In 2024 Medicare Part D data, Dr. Nishimura's most prescribed drugs by claims were Losartan Potassium, Enalapril Maleate and Farxiga.
Has Dr. Hiroki Nishimura received payments from drug or device companies?
CMS Open Payments shows $642 in general payments to Dr. Nishimura from 3 companies from 2024 to 2025. The largest total came from Amgen Inc.
How long has Dr. Hiroki Nishimura been practicing?
Dr. Nishimura graduated from medical school in 2012, 14 years ago.
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