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

Karin L Underkoffler, OD

Individual provider Optometrist · NPI 1699757666

Karin L Underkoffler, OD is an Optometry in Westborough, Massachusetts. Graduated from Pennsylvania College of Optometry in 1987, 39 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
39
Trained at
Pennsylvania College of Optometry
Licensed in
MA
In the registry since
2005
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

900 Union St
Westborough, MA 01581-5408
Phone: (508) 871-1799
Fax: (508) 871-0779
Show map & directions

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

Additional practice locations (1)

  • 135 Goldstar Blvd, Worcester, MA 01606 — (508) 856-9599

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3378 (MA)

Record details

NPI number1699757666
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedNovember 16, 2005
Last updated in NPPESJune 23, 2020
Certification dateJune 23, 2020
Mailing address900 Union St, Westborough, MA 01581-5408

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolPENNSYLVANIA COLLEGE OF OPTOMETRY
Graduated 1987 (39 years in practice)
Group practice Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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