NPPES file of Aug 9, 2026

Joel A. Geffin, M.D.

Cornea and External Diseases Specialist Physician · Waterbury, CT

Joel A. Geffin, M.D. is a cornea and external diseases specialist physician with a practice address in Waterbury, Connecticut, and NPI 1659341675, issued on Jan 23, 2006. Check the license (Connecticut 033778, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659341675
Name
Joel A. Geffin
Credential
M.D.
Primary taxonomy
Cornea and External Diseases Specialist Physician 207WX0120X
License number
033778 CT
Self-reported in NPPES; status is on the state search
Practice location
1201 W Main St, Waterbury, CT 06708
Phone
(203) 597-9100
Enumerated
Jan 23, 2006
Record last updated
Jun 26, 2024
Fax
(203) 596-4758
Medicare enrollment
Enrolled (PECOS I20101117000246); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1201 W Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Laura Andrews, MDOphthalmology Physician1710390646
  2. Thomas Berenberg, M.D.Retina Specialist (Ophthalmology) Physician1407084544
  3. Peter Branden, M.D.Glaucoma Specialist (Ophthalmology) Physician1588636807
  4. Cinthia Covey, M.D.Ophthalmology Physician1174714117
  5. Tara Cronin, M.D.Pediatric Ophthalmology and Strabismus Specialist Physician1174721864
  6. Nhu-Y Dao, M.D.Ophthalmology Physician1346506094

Verify Joel A. Geffin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 033778
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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68% more Medicare Part D claims than the average cornea and external diseases specialist physician in 2024

2,117 Medicare Part D claims for 542 beneficiaries, against an average of 1,263 among the 330 providers of this specialty who prescribed in Part D.

  1. Joel Geffin2,117
  2. Specialty average1,263

Most prescribed

  1. Prednisolone Acetate538 claims
  2. Ofloxacin348 claims
  3. Fluorometholone141 claims
  4. Latanoprost127 claims
  5. Timolol Maleate118 claims
  6. Neomycin-Polymyxin-Dexameth88 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 practice group's MIPS final score for 2023 (Medicare payment program): 89.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%64.7
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $332.98

2 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. The 284 providers of this specialty with any payment received $3,109.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joel Geffin$332.98
  2. Specialty average$3,109.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. The Eye Care Group, P.C.Branford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cornea and External Diseases Specialist Physician providers in Connecticut

There are 7 cornea and external diseases specialist physician records in Connecticut.

The 6 cornea and external diseases specialist physician records with the nearest ZIP codes

  1. Archna Johar, MDProspect, CT 067121902007438
  2. Anisha Jangi, M.D.Danbury, CT 068101326230277
  3. Stephen Zuckerman, M.D.Danbury, CT 068101528066586
  4. Jessica Chen, MDNew Haven, CT 065101083141550
  5. Yvonne Wang, MDNew Haven, CT 065101679953863
  6. Weijie Lin, MDMilford, CT 064601801356092

Common questions

What is Joel A. Geffin, M.D.'s NPI number?

Joel A. Geffin, M.D.'s National Provider Identifier (NPI) is 1659341675, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joel A. Geffin, M.D. located?

The NPPES record lists a practice address at 1201 W Main St, Waterbury, CT, 06708. Phone: (203) 597-9100. Providers update this record themselves, so call before visiting.

How can I verify Joel A. Geffin, M.D.'s license?

NPPES lists Connecticut license number 033778, as entered by the provider. 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 Joel A. Geffin, M.D. prescribe under Medicare Part D?

In 2024, Joel A. Geffin, M.D. had 2,117 Medicare Part D claims for 542 beneficiaries; the average among cornea and external diseases specialist physician prescribers was 1,263. Part D covers Medicare prescriptions only.

What is Joel A. Geffin, M.D.'s MIPS final score?

The 2023 MIPS final score is 89.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.