Karin Underkoffler, OD
NPI 1699757666 · Optometrist · Westborough, MA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karin Underkoffler, OD is a Optometrist provider in Westborough, MA (NPI 1699757666).
Provider details
- NPI number
- 1699757666
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 3378 (MA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
695 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 215 | $58 |
| Established Patient Complete Exam of Visual System92014 | 170 | $129 |
| Imaging of Optic Nerve92133 | 129 | $36 |
| Exam of Visual Field With Extended Testing92083 | 65 | $65 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $92 |
| New Patient Complete Exam of Visual System92004 | 33 | $148 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 182 | 80 |
| Cyclosporine | 77 | 21 |
| Cyclosporinebrand: Restasis | 70 | 22 |
| Erythromycin Basebrand: Erythromycin | 34 | 23 |
| Brimonidine Tartrate | 24 | 12 |
| Timolol Maleate | 19 | 13 |
| Lifitegrastbrand: Xiidra | 16 | — |
| Dorzolamide Hcl/Timolol Maleat |
Practice location
Mailing address
Additional practice locations (1)
- 135 Goldstar BlvdWorcester, MA 01606Phone: (508) 856-9599Fax: (508) 854-4997
Registry dates
- Enumerated
- 2005-11-16
- Last updated
- 2020-06-23
- Certified
- 2020-06-23
Frequently asked questions
- What is Karin Underkoffler's NPI number?
- Karin Underkoffler's National Provider Identifier (NPI) is 1699757666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karin Underkoffler's specialty?
- Karin Underkoffler is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Karin Underkoffler located?
- Karin Underkoffler's practice location on file with NPPES is 900 Union St, Westborough, MA 01581-5408.
- What is Karin Underkoffler's phone number?
- The practice phone number listed in the NPPES registry for Karin Underkoffler is (508) 871-1799.
- Does Karin Underkoffler accept Medicare?
- Karin Underkoffler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karin Underkoffler's NPI active?
- Yes — Karin Underkoffler's NPI (1699757666) is active in the NPPES registry as of the last update on 2020-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.