Gregory Zablocki, M.D.
Ophthalmology Physician · Ithaca, NY
Gregory Zablocki, M.D. is an ophthalmology physician with a practice address in Ithaca, New York, and NPI 1538427455, issued on Apr 28, 2012. Check the license (New York 283648-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory Zablocki
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 283648-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 Uptown RD, Ithaca, NY 14850
- Phone
- (607) 257-5599
- Enumerated
- Apr 28, 2012
- Record last updated
- Jul 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160811000601); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2012
- Entity
- Type 1 · individual
Also registered at 100 Uptown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Arleo, MD, PCSpecialist1952416216
- Mary Conroy, ODOptometrist1982957577
- Melissa Oltz, O.D.Optometrist1326248931
Verify Gregory Zablocki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 283648-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average ophthalmology physician in 2024
1,978 Medicare Part D claims for 496 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost499 claims
- Timolol Maleate290 claims
- Prednisolone Acetate209 claims
- Ketorolac Tromethamine157 claims
- Ciprofloxacin Hcl145 claims
- Dorzolamide-Timolol90 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 MIPS final score for 2023 (Medicare payment program): 95.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Cayuga Medical Associates PCIthaca, NY
- Robert J. Arleo, Md,pcIthaca, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in New York
There are 1,822 ophthalmology physician records in New York.
Other ophthalmology physician records in New York
- Aliaa Abdelhakim Hamed, M.D., PH.D.New York, NY1023404175
- Majida Abdul Gaffar, M.D.Hawthorne, NY1235383928
- David H Abramson, MDNew York, NY1235114026
- Rami Abu Sbeit, M.D.Cooperstown, NY1558056531
- Frank Accardi, MDNew York, NY1336253780
- Jacob Ackerman, MDBrooklyn, NY1710083050
- Jessica Ackert, MDNew York, NY1437301629
- Stephen Adalman, M.D.Kingston, NY1003832726
- Christopher Adam, MDEast Patchogue, NY1962821355
- Anthony Adamis, M.D.New York, NY1104863117
Common questions
What is Gregory Zablocki, M.D.'s NPI number?
Gregory Zablocki, M.D.'s National Provider Identifier (NPI) is 1538427455, issued on Apr 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Zablocki, M.D. located?
The NPPES record lists a practice address at 100 Uptown RD, Ithaca, NY, 14850. Phone: (607) 257-5599. Providers update this record themselves, so call before visiting.
How can I verify Gregory Zablocki, M.D.'s license?
NPPES lists New York license number 283648-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Zablocki, M.D. prescribe under Medicare Part D?
In 2024, Gregory Zablocki, M.D. had 1,978 Medicare Part D claims for 496 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Gregory Zablocki, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.2 of 100. 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.