Biological ProductsClinical Studies as TopicDrug Approval
Dr. Nicholas Sinclair Downing, MD
NPI1114309630
- Part D claims, 2017
- 14
- Publications
- 47
- Industry payments
- $138
- State license
- 1
- Year NPI issued
- 2015
- Practice address
- 450 Brookline Ave, Boston, MA 02215
- Practice phone
- Call (617) 632-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dana-Farber Cancer Institute
Boston, Massachusetts
Find Dr. Downing'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. Nicholas Sinclair Downing is an internist in Boston, Massachusetts
Dr. Downing practices at Dana-Farber Cancer Institute in Boston, Massachusetts.
Dr. Downing's NPI, 1114309630, was assigned on June 20, 2015. Dr. Downing holds Massachusetts license 264389.
NPI and contact details
- NPI
- 1114309630NPI Registry (opens in a new tab)
- NPI enumeration date
- June 20, 2015
- NPI status
- Active
- Practice phone
- (617) 632-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Nicholas Sinclair Downing practices at Dana-Farber Cancer Institute in Boston, Massachusetts
Dr. Downing's primary practice is Dana-Farber Cancer Institute, at 450 Brookline Ave, Boston, MA 02215 in Suffolk County. The practice phone is (617) 632-3000.
- Dana-Farber Cancer Institute450 Brookline Ave, Boston, MA 02215 · Suffolk CountyPhone(617) 632-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicholas Sinclair Downing is affiliated with 1 site of care
Dr. Downing's primary practice is Dana-Farber Cancer Institute in Boston, Massachusetts.
Dana-Farber Cancer InstitutePrimary
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Nicholas Sinclair Downing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Downing practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dana-Farber Cancer Institute | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Downing practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nicholas Sinclair Downing is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Downing's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Downing is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Downing
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. Nicholas Sinclair Downing wrote 14 Medicare Part D claims in 2017
In 2017, Dr. Downing wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $81 in total drug cost.
Part D claims, 201714
Drugs named by CMS1
Total drug cost$81
Dr. Downing's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Find internists like Dr. Downing by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nicholas Sinclair Downing has 47 publications on record
Dmand AI links 47 papers to Dr. Downing, published from 2012 to 2021. 2017 was the busiest year, with 9. The most frequent topics are Drug Approval, United States Food and Drug Administration and China. Dr. Downing has published most often in JAMA. Dr. Downing's most frequent co-authors are Frederick A. Masoudi, MD, Karthik Murugiah, MD and Audrey Dee Zhang.
Papers47
Years published2012 to 2021
Dr. Downing's papers by year, 2012 to 2021
Topics Dr. Downing writes about most
- Drug Approval
- United States Food and Drug Administration
- China
- Myocardial Infarction
- Product Surveillance, Postmarketing
- Europe
- Research Design
- Government Regulation
Dr. Downing's most frequent co-authors
- Frederick A. Masoudi, MD8 shared papers
- Karthik Murugiah, MD4 shared papers
- Audrey Dee Zhang4 shared papers
Recent publications by Dr. Downing
Biological ProductsDrug ApprovalPharmaceutical Preparations
Administration, IntravenousChinaHeart Arrest
Black or African AmericanBlack PeopleFee-for-Service Plans
Drug ApprovalEndpoint DeterminationEurope
See who Dr. Downing researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Downing works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicholas Sinclair Downing received $138 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Downing from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $138.
Companies that paid Dr. Downing the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Sinclair Downing'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nicholas Sinclair Downing
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. Nicholas Sinclair Downing's NPI number?
Dr. Nicholas Sinclair Downing's NPI number is 1114309630. It was assigned on June 20, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Sinclair Downing?
Dr. Nicholas Sinclair Downing is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nicholas Sinclair Downing practice?
Dr. Downing practices at 450 Brookline Ave, Boston, MA 02215. Dr. Downing's primary practice is Dana-Farber Cancer Institute in Boston, Massachusetts.
What is Dr. Nicholas Sinclair Downing's office phone number?
The practice phone on file for Dr. Downing is (617) 632-3000.
What is Dr. Nicholas Sinclair Downing's medical license number?
Dr. Downing holds Massachusetts license 264389.
What drugs does Dr. Nicholas Sinclair Downing prescribe most?
In 2017 Medicare Part D data, Dr. Downing's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Nicholas Sinclair Downing received payments from drug or device companies?
CMS Open Payments shows $138 in general payments to Dr. Downing from 1 company from 2022 to 2022. The largest total came from Abbott Laboratories.
How long has Dr. Nicholas Sinclair Downing been practicing?
Dr. Downing's NPI was assigned in 2015.
Does Dr. Nicholas Sinclair Downing do research?
Dmand AI links 47 publications to Dr. Downing, published from 2012 to 2021.
Who does Dr. Nicholas Sinclair Downing publish with?
Dr. Downing's most frequent co-authors are Frederick A. Masoudi, MD (8 shared papers), Karthik Murugiah, MD (4 shared papers) and Audrey Dee Zhang (4 shared papers).
Selling to internal medicine practices?
See internists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card