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

Mrs. Karen Lisa Zar, OD

Individual provider Optometrist · NPI 1780786780

Mrs. Karen Lisa Zar, OD is registered under Optometry in Waltham, Massachusetts. Graduated from New England College of Optometry in 2004, 22 years ago. Practices with Massachusetts Eye and Ear Associates, Inc, a 410-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
22
Trained at
New England College of Optometry
Licensed in
MA
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Practice location Address checks out

1601 Trapelo Rd Ste 184
Waltham, MA 02451-7333 Not confirmed with CMS for 14 years — call before visiting
Phone: (781) 890-1023
Fax: (781) 890-2507
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4505 (MA)

Record details

NPI number1780786780
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedSeptember 1, 2006
Last updated in NPPESNovember 21, 2011

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolNEW ENGLAND COLLEGE OF OPTOMETRY
Graduated 2004 (22 years in practice)
Group practice Massachusetts Eye And Ear Associates, Inc — 410 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients56
Services billed 71 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Massachusetts Eye and Ear Associates, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 410 clinicians in the practice; 12 are shown here.

Other providers in Waltham