IndividualActive
Stephan Ong Tone, MDCM, PHD, FRCSC
NPI 1538646989 · Cornea and External Diseases Specialist Physician · Boston, MA
Provider details
- NPI number
- 1538646989
- Entity type
- Individual
- Primary specialty
- Cornea and External Diseases Specialist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MDCM, PHD, FRCSC
- Sex
- Male
- Sole proprietor
- No
- License
- 274508 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
243 Charles St
Boston, MA 02114-3096
Phone: (617) 573-4443
Street-level locationGet directions
Mailing address
243 Charles St
Boston, MA 02114-3002
Registry dates
- Enumerated
- 2018-07-27
- Last updated
- 2018-09-18
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.