Karen Nipper, M.D.
NPI 1124093059 · Ophthalmology Physician · Waterbury, CT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Nipper, M.D. is a Ophthalmology Physician provider in Waterbury, CT (NPI 1124093059).
Provider details
- NPI number
- 1124093059
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 251101 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,264 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Problem Focused Exam of Visual System92012 | 532 | $89 |
| Photography of Content of Eyes92285 | 246 | $25 |
| Established Patient Complete Exam of Visual System92014 | 190 | $131 |
| Exam of Visual Field With Extended Testing92083 | 54 | $66 |
| Imaging of Retina92134 | 45 | $42 |
| Biopsy of Eyelid67810 | 28 | $187 |
| Injection Into Skin Growth, 1-7 Growths11900 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Erythromycin Basebrand: Erythromycin | 529 | 248 |
| Azelastine Hcl | 363 | 162 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 333 | 250 |
| Cyclosporinebrand: Restasis | 138 | 60 |
| Cyclosporine | 116 | 53 |
| Prednisolone Acetate | 90 | 74 |
| Lifitegrastbrand: Xiidra | 74 | 39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$566 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-22
- Last updated
- 2021-11-03
- Certified
- 2021-02-08
Frequently asked questions
- What is Karen Nipper's NPI number?
- Karen Nipper's National Provider Identifier (NPI) is 1124093059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Nipper's specialty?
- Karen Nipper is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Nipper located?
- Karen Nipper's practice location on file with NPPES is 87 Grandview Ave, Waterbury, CT 06708-2514.
- What is Karen Nipper's phone number?
- The practice phone number listed in the NPPES registry for Karen Nipper is (203) 574-2020.
- Does Karen Nipper accept Medicare?
- Karen Nipper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Nipper's NPI active?
- Yes — Karen Nipper's NPI (1124093059) is active in the NPPES registry as of the last update on 2021-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.