Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Stephan Ong Tone, MDCM, PHD, FRCSC

Individual provider Cornea and External Diseases Specialist Physician · NPI 1538646989

Stephan Ong Tone, MDCM, PHD, FRCSC is a Cornea and External Diseases Specialist Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2018.

Licensed in
MA
In the registry since
2018
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

243 Charles St
Boston, MA 02114-3096
Phone: (617) 573-4443
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cornea and External Diseases Specialist Physician (primary) Taxonomy 207WX0120X · Licence 274508 (MA)

Record details

NPI number1538646989
Entity typeIndividual (Type 1)
GenderMale
Credentials MDCM , PHD , FRCSC
Sole proprietorNo
NPI enumeratedJuly 27, 2018
Last updated in NPPESSeptember 18, 2018

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