Dr. Dan L. Longo, MD
- Part D claims, 2018
- 13
- Publications
- 112
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Longo'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. Dan L. Longo is a medical oncologist in Boston, Massachusetts
Dr. Longo practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Longo's NPI, 1790842664, was assigned on January 2, 2007. Dr. Longo holds Maryland license D0020564.
- NPI
- 1790842664NPI Registry (opens in a new tab)
- NPI enumeration date
- January 2, 2007
- NPI status
- Active
- Practice phone
- (617) 636-5000
- 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 Affiliation Data
Dr. Dan L. Longo practices at Tufts Medical Center in Boston, Massachusetts
Dr. Longo's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Dan L. Longo is affiliated with 2 sites of care
Dr. Longo's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Longo to 1 imaging center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Dan L. Longo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Longo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Tufts Medicine and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Dan L. Longo is one of 290 medical oncologists in Massachusetts
Medical oncology is Dr. Longo's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Longo is licensed in Maryland.
Specialties and state licenses
- Medical oncology, MarylandPrimary
Medical oncologists near Dr. Longo
Counts of medical oncologists 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. Dan L. Longo's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Longo's median patient age at 68, with 25% women.
Dr. Longo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women25%
- Men75%
Source: Dmand AI Patient Panel Data
Dr. Dan L. Longo wrote 13 Medicare Part D claims in 2018
In 2018, Dr. Longo wrote 13 Medicare Part D claims. They cover 1 drug, with $121,232 in total drug cost. In 2017, CMS named 11 claims across 1 drug.
Dr. Longo's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 112018: 1318%
Drugs named by CMS: 1 in 2018, 1 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Dan L. Longo has 112 publications on record
Dmand AI links 112 papers to Dr. Longo, published from 2010 to 2025. 2021 was the busiest year, with 5. The most frequent topics are Antineoplastic Agents, Aging and Signal Transduction. Dr. Longo has published most often in N Engl J Med. Dr. Longo's most frequent co-authors are Luigi Ferrucci, MD, Bruce Robert Blazar, MD and James O. Armitage, MD.
Dr. Longo's papers by year, 2016 to 2025
Topics Dr. Longo writes about most
- Antineoplastic Agents
- Aging
- Signal Transduction
- Immunotherapy
- T-Lymphocytes
- Antibodies, Monoclonal
- Antineoplastic Combined Chemotherapy Protocols
- COVID-19
Dr. Longo's most frequent co-authors
- Luigi Ferrucci, MD20 shared papers
- Bruce Robert Blazar, MD11 shared papers
- James O. Armitage, MD10 shared papers
Recent publications by Dr. Longo
JCI Insight
See who Dr. Longo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Longo works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Dan L. Longo'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel 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 |
| 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. Dan L. Longo
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. Dan L. Longo's NPI number?
Dr. Dan L. Longo's NPI number is 1790842664. It was assigned on January 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Dan L. Longo?
Dr. Dan L. Longo is a medical oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Dan L. Longo practice?
Dr. Longo practices at 800 Washington Street, Boston, MA 02111. Dr. Longo's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Longo to 1 imaging center.
What is Dr. Dan L. Longo's office phone number?
The practice phone on file for Dr. Longo is (617) 636-5000.
What is Dr. Dan L. Longo's medical license number?
Dr. Longo holds Maryland license D0020564.
Which hospitals is Dr. Dan L. Longo affiliated with?
Dr. Longo practices at Tufts Medical Center in Boston, Massachusetts.
What drugs does Dr. Dan L. Longo prescribe most?
In 2018 Medicare Part D data, Dr. Longo's most prescribed drugs by claims were Exjade.
How long has Dr. Dan L. Longo been practicing?
Dr. Longo's NPI was assigned in 2007.
Does Dr. Dan L. Longo do research?
Dmand AI links 112 publications to Dr. Longo, published from 2010 to 2025.
Who does Dr. Dan L. Longo publish with?
Dr. Longo's most frequent co-authors are Luigi Ferrucci, MD (20 shared papers), Bruce Robert Blazar, MD (11 shared papers) and James O. Armitage, MD (10 shared papers).
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