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

Dr. Karen Lynne Koumjian, OD

Individual provider Optometrist · NPI 1134345689

Dr. Karen Lynne Koumjian, OD is an Optometry in Watertown, Massachusetts. Graduated from New England College of Optometry in 1981, 45 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
45
Trained at
New England College of Optometry
Licensed in
MA
In the registry since
2007
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

124 Watertown St Ste 3E
Watertown, MA 02472-2500
Phone: (617) 923-2761
Fax: (617) 926-2835
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 2921 (MA)

Record details

NPI number1134345689
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorYes
NPI enumeratedApril 17, 2007
Last updated in NPPESJune 30, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolNEW ENGLAND COLLEGE OF OPTOMETRY
Graduated 1981 (45 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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