Gregory Zablocki, M.D.
NPI 1538427455 · Ophthalmology Physician · Ithaca, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Zablocki, M.D. is a Ophthalmology Physician provider in Ithaca, NY (NPI 1538427455).
Provider details
- NPI number
- 1538427455
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
- Ophthalmologic Surgery Clinic/Center261QS0132X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,952 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 1,211 | $121 |
| Imaging of Retina92134 | 380 | $38 |
| Established Patient Problem Focused Exam of Visual System92012 | 335 | $86 |
| New Patient Complete Exam of Visual System92004 | 179 | $142 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 177 | $23 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 139 | $511 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 499 | 133 |
| Timolol Maleate | 290 | 78 |
| Prednisolone Acetate | 209 | 172 |
| Ketorolac Tromethamine | 157 | 142 |
| Ciprofloxacin Hcl | 145 | 140 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 90 | 22 |
| Brimonidine Tartrate | 85 | 28 |
| Dorzolamide Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-28
- Last updated
- 2016-07-21
Frequently asked questions
- What is Gregory Zablocki's NPI number?
- Gregory Zablocki's National Provider Identifier (NPI) is 1538427455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Zablocki's specialty?
- Gregory Zablocki is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Zablocki located?
- Gregory Zablocki's practice location on file with NPPES is 100 Uptown Rd, Ithaca, NY 14850-1632.
- What is Gregory Zablocki's phone number?
- The practice phone number listed in the NPPES registry for Gregory Zablocki is (607) 257-5599.
- Does Gregory Zablocki accept Medicare?
- Gregory Zablocki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Zablocki's NPI active?
- Yes — Gregory Zablocki's NPI (1538427455) is active in the NPPES registry as of the last update on 2016-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.