IndividualActive
Dan Longo, M.D.
NPI 1790842664 · Medical Oncology Physician · Brookline, MA
Provider details
- NPI number
- 1790842664
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0020564 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
111 Cypress St
Brookline, MA 02445-6002
Phone: (857) 307-0896
Street-level locationGet directions
Mailing address
111 Cypress St
Brookline, MA 02445-6002
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2012-06-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.