Joel Geffin, M.D.
NPI 1659341675 · Cornea and External Diseases Specialist Physician · Waterbury, CT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joel Geffin, M.D. is a Cornea and External Diseases Specialist Physician provider in Waterbury, CT (NPI 1659341675).
Provider details
- NPI number
- 1659341675
- Entity type
- Individual
- Primary specialty
- Cornea and External Diseases Specialist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 033778 (CT)
Specialties & taxonomies
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
2,252 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 Complete Exam of Visual System92014 | 560 | $135 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 351 | $136 |
| Established Patient Problem Focused Exam of Visual System92012 | 229 | $95 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 215 | $97 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 156 | $27 |
| Imaging of Retina92134 | 135 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 538 | 261 |
| Ofloxacin | 348 | 193 |
| Fluorometholone | 141 | 79 |
| Latanoprost | 127 | 32 |
| Timolol Maleate | 118 | 39 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 88 | 64 |
| Ketorolac Tromethamine | 71 | 24 |
| Valacyclovir Hclbrand: Valacyclovir |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$333 across 2 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
- 2006-01-23
- Last updated
- 2024-06-26
- Certified
- 2024-06-26
Frequently asked questions
- What is Joel Geffin's NPI number?
- Joel Geffin's National Provider Identifier (NPI) is 1659341675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Geffin's specialty?
- Joel Geffin is listed in the NPPES registry with a primary specialty of Cornea and External Diseases Specialist Physician (Allopathic & Osteopathic Physicians).
- Where is Joel Geffin located?
- Joel Geffin's practice location on file with NPPES is 1201 W Main St, Waterbury, CT 06708-3105.
- What is Joel Geffin's phone number?
- The practice phone number listed in the NPPES registry for Joel Geffin is (203) 597-9100.
- Does Joel Geffin accept Medicare?
- Joel Geffin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joel Geffin's NPI active?
- Yes — Joel Geffin's NPI (1659341675) is active in the NPPES registry as of the last update on 2024-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.