Karin L. Underkoffler, OD
Optometrist · Westborough, MA
Karin L. Underkoffler, OD is an optometrist with a practice address in Westborough, Massachusetts, and NPI 1699757666, issued on Nov 16, 2005. Check the license (Massachusetts 3378, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karin L. Underkoffler
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 3378 MA
Self-reported in NPPES; status is on the state search - Practice location
- 900 Union St, Westborough, MA 01581
- Phone
- (508) 871-1799
- Enumerated
- Nov 16, 2005
- Record last updated
- Jun 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 871-0779
- Medicaid ID
- 110014770A MA
- Medicare enrollment
- Enrolled (PECOS I20060406000044); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 1987
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,501 in Massachusetts → Look up another NPI →
Also registered at 900 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leah Barker, NPWomen's Health Nurse Practitioner1780753061
- Allison Camacho, NPNurse Practitioner1184841736
- Michael Daley, MDPediatrics Physician1861469751
- Ann Marie Deangelis, M.D.Pediatrics Physician1477500106
- Natalie Dolan, PAPhysician Assistant1992206205
- Leah Doret, M.D.Family Medicine Physician1699781039
Verify Karin L. Underkoffler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 3378Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average optometrist in 2024
536 Medicare Part D claims for 189 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Latanoprost182 claims
- Cyclosporine77 claims
- Restasis70 claims
- Erythromycin34 claims
- Brimonidine Tartrate24 claims
- Timolol Maleate19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Reliant Medical Group IncWestborough, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karin L. Underkoffler among 1,501 optometrist records in Massachusetts
Karin L. Underkoffler, OD is one of 1,501 optometrist records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1987 · median 2008 among the 933 with a school on file
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Massachusetts
There are 1,501 optometrist records in Massachusetts.
All 1,501 in Massachusetts → Every provider in Westborough → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Lisa Kralian, O.D.Westborough, MA 015811306830443
- Suzanne Lucash, O.D.Westborough, MA 015811053422592
- Ewa Mamber, O.D.Westborough, MA 015811649458209
- Gabrielle PerelmuterWestborough, MA 015811649104951
- Deborah Bettencourt, O.D.West Boylston, MA 015831114023157
- Neil Casey, O.D.West Boylston, MA 015831043397532
- Lori Heyler, O.D.West Boylston, MA 015831245391804
- Richard Martino, ODWest Boylston, MA 015831134112733
Common questions
What is Karin L. Underkoffler, OD's NPI number?
Karin L. Underkoffler, OD's National Provider Identifier (NPI) is 1699757666, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karin L. Underkoffler, OD located?
The NPPES record lists a practice address at 900 Union St, Westborough, MA, 01581. Phone: (508) 871-1799. Providers update this record themselves, so call before visiting.
How can I verify Karin L. Underkoffler, OD's license?
NPPES lists Massachusetts license number 3378, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Karin L. Underkoffler, OD prescribe under Medicare Part D?
In 2024, Karin L. Underkoffler, OD had 536 Medicare Part D claims for 189 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.