John Epstein, M.D.
NPI 1851304612 · Ophthalmology Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Epstein, M.D. is a Ophthalmology Physician provider in Princeton, NJ (NPI 1851304612).
Provider details
- NPI number
- 1851304612
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD428610 (PA)
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
19 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
2,885 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 | 452 | $96 |
| Established Patient Complete Exam of Visual System92014 | 439 | $136 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 430 | $28 |
| Insertion of Drug Delivery Implant Into Tear Duct of Eye68841 | 287 | $17 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 237 | $548 |
| New Patient Complete Exam of Visual System92004 | 177 | $160 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 315 | 94 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 99 | 34 |
| Polymyxin B Sulf/Trimethoprimbrand: Polymyxin B Sul-Trimethoprim | 94 | 76 |
| Bromfenac Sodiumbrand: Prolensa | 71 | 46 |
| Prednisolone Acetate | 63 | 44 |
| Brimonidine Tartrate | 44 | 14 |
| Cyclosporinebrand: Restasis | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$807 across 23 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
- 2006-08-14
- Last updated
- 2017-11-07
Frequently asked questions
- What is John Epstein's NPI number?
- John Epstein's National Provider Identifier (NPI) is 1851304612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Epstein's specialty?
- John Epstein is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is John Epstein located?
- John Epstein's practice location on file with NPPES is 419 North Harrison Street, Princeton, NJ 08540.
- What is John Epstein's phone number?
- The practice phone number listed in the NPPES registry for John Epstein is (609) 921-9437.
- Does John Epstein accept Medicare?
- John Epstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Epstein's NPI active?
- Yes — John Epstein's NPI (1851304612) is active in the NPPES registry as of the last update on 2017-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.