Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Richard Yilin Zhang, OD, PHD

Individual provider Optometrist · NPI 1699850214

Dr. Richard Yilin Zhang, OD, PHD is an Optometrist in Lexington, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts and New Hampshire.

Licensed in
MA, NH
In the registry since
2006
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

16 Clarke St B2
Lexington, MA 02421
Phone: (781) 676-2020
Fax: (781) 676-2021
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4116 (MA)
Optometrist Taxonomy 152W00000X · Licence 0673 (NH)

Record details

NPI number1699850214
Entity typeIndividual (Type 1)
GenderMale
Credentials OD , PHD
Sole proprietorYes
NPI enumeratedOctober 25, 2006
Last updated in NPPESDecember 9, 2009

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