Karen Nipper, M.D.
Ophthalmology Physician · Waterbury, CT
Karen Nipper, M.D. is an ophthalmology physician with a practice address in Waterbury, Connecticut, and NPI 1124093059, issued on Feb 22, 2006. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen Nipper
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- Practice location
- 87 Grandview Ave, Waterbury, CT 06708
- Phone
- (203) 574-2020
- Enumerated
- Feb 22, 2006
- Entity
- Type 1 · individual
Also registered at 87 Grandview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shimy ApoorvaOphthalmology Physician1518499367
- Sarah Caliguire, OD, MSOptometrist1558125823
- Caroline Debenedictis, MDOphthalmology Physician1801058151
- Vincent Deluise, M.D.Ophthalmology Physician1326000753
- Richard Getnick, M.D.Ophthalmology Physician1548222987
- Richard Gilbert, M.D.Ophthalmology Physician1770545659
Verify Karen Nipper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
53% more Medicare Part D claims than the average ophthalmology physician in 2024
2,283 Medicare Part D claims for 754 beneficiaries, against an average of 1,490 among the 16,109 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims. 88 claims were for opioids.
Most prescribed
- Erythromycin529 claims
- Azelastine Hcl363 claims
- Neomycin-Polymyxin-Dexameth333 claims
- Restasis138 claims
- Cyclosporine116 claims
- Prednisolone Acetate90 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.
The Medicare quality score for 2023: 83.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $565.69
30 payments, mostly food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc.. The 12,922 providers of this specialty with any payment received $4,937.17 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Refocus Eye Health OF Central Connecticut PCWaterbury, CT
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
30 ophthalmology physician records list a Waterbury practice address
They are 30 of the 3,148 NPPES records with a Waterbury practice address, and 347 ophthalmology physician records in Connecticut.
All 30 in Waterbury → All 347 in Connecticut → Every provider in Waterbury →
Other ophthalmology physician records in Connecticut
- Marcio Abreu, M.D.Bridgeport, CT1366721995
- Bruce Altman, M.D.Danbury, CT1336147784
- Laura Andrews, MDWaterbury, CT1710390646
- Shimy ApoorvaWaterbury, CT1518499367
- Yehuda Assouline, M.D.Danbury, CT1578514709
- Duane Austin, M.D.West Hartford, CT1477654838
- Darron Bacal, MDMilford, CT1528161403
- Sarah Baroody, M.D.Newtown, CT1710921861
- Anthony Barri, MDGroton, CT1245348796
- Michael Bautista, MDWestport, CT1689038671
Common questions
What is Karen Nipper, M.D.'s NPI number?
Karen Nipper, M.D.'s National Provider Identifier (NPI) is 1124093059, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Nipper, M.D. located?
The NPPES record lists a practice address at 87 Grandview Ave, Waterbury, CT, 06708. Phone: (203) 574-2020. Providers update this record themselves, so call before visiting.
How can I verify Karen Nipper, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Nipper, M.D. prescribe under Medicare Part D?
In 2024, Karen Nipper, M.D. had 2,283 Medicare Part D claims for 754 beneficiaries; the average among ophthalmology physician prescribers was 1,490. Part D covers Medicare prescriptions only.
What is Karen Nipper, M.D.'s Medicare quality score?
The 2023 MIPS final score is 83.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.