Mark Hornfeld, DO
NPI 1467428573 · Ophthalmology Physician · New York, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Hornfeld, DO is a Ophthalmology Physician provider in New York, NY (NPI 1467428573).
Provider details
- NPI number
- 1467428573
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 179425 (NY)
Specialties & taxonomies
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
2,028 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 | 438 | $142 |
| Imaging of Retina92134 | 262 | $45 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 173 | $17 |
| Exam of the Internal Drainage System of Eye92020 | 172 | $31 |
| Closure of Tear Duct Opening Using Plug68761 | 126 | $122 |
| Exam of Visual Field With Extended Testing92083 | 125 | $72 |
| Photography of Content of Eyes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Brimonidine Tartrate | 764 | 193 |
| Latanoprost | 630 | 168 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 542 | 357 |
| Loteprednol Etabonatebrand: Alrex | 477 | 127 |
| Azelastine Hcl | 423 | 127 |
| Ketorolac Tromethamine | 413 | 159 |
| Ciprofloxacin Hcl | 306 | 127 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$912 across 43 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
- 2006-02-28
- Last updated
- 2020-02-26
- Certified
- 2020-02-26
Frequently asked questions
- What is Mark Hornfeld's NPI number?
- Mark Hornfeld's National Provider Identifier (NPI) is 1467428573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Hornfeld's specialty?
- Mark Hornfeld is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Hornfeld located?
- Mark Hornfeld's practice location on file with NPPES is 125 W 79th Street, New York, NY 10024-6454.
- What is Mark Hornfeld's phone number?
- The practice phone number listed in the NPPES registry for Mark Hornfeld is (212) 580-8881.
- Does Mark Hornfeld accept Medicare?
- Mark Hornfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Hornfeld's NPI active?
- Yes — Mark Hornfeld's NPI (1467428573) is active in the NPPES registry as of the last update on 2020-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.