IndividualActive
Eugene Chan
NPI 1811181365 · Internal Medicine Physician · Boston, MA
Eugene Chan is a Internal Medicine Physician provider in Boston, MA (NPI 1811181365).
Provider details
- NPI number
- 1811181365
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 233011 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
75 Francis St
Boston, MA 02115-6110
Phone: (617) 525-6841
Street-level locationGet directions
Mailing address
116 Charles St
Boston, MA 02114-3217
Registry dates
- Enumerated
- 2007-08-28
- Last updated
- 2007-08-28
Frequently asked questions
- What is Eugene Chan's NPI number?
- Eugene Chan's National Provider Identifier (NPI) is 1811181365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Chan's specialty?
- Eugene Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Chan located?
- Eugene Chan's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Eugene Chan's phone number?
- The practice phone number listed in the NPPES registry for Eugene Chan is (617) 525-6841.
- Is Eugene Chan's NPI active?
- Yes — Eugene Chan's NPI (1811181365) is active in the NPPES registry as of the last update on 2007-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.