Peter T. Zacharia, MD
Ophthalmology Physician · Worcester, MA
Peter T. Zacharia, MD is an ophthalmology physician with a practice address in Worcester, Massachusetts, and NPI 1689666745, issued on Aug 16, 2005. Check the license (Massachusetts 75948, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Peter T. Zacharia
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 75948 MA
Self-reported in NPPES; status is on the state search - Practice location
- 33 Lancaster St, Worcester, MA 01609
- Phone
- (508) 791-8484
- Enumerated
- Aug 16, 2005
- Record last updated
- Dec 1, 2023
- Fax
- (508) 791-1658
- Medicaid ID
- 3101568 MA
- Medicare enrollment
- Enrolled (PECOS I20050506000351); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1988
- Entity
- Type 1 · individual
Also registered at 33 Lancaster St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Isabel Balderas, M.D.Ophthalmology Physician1043426281
Verify Peter T. Zacharia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 75948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average ophthalmology physician in 2024
6,293 Medicare Part D claims for 865 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Latanoprost1,620 claims
- Brimonidine Tartrate763 claims
- Timolol Maleate713 claims
- Dorzolamide Hcl624 claims
- Dorzolamide-Timolol580 claims
- Prednisolone Acetate312 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): 97 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).
Industry payments in 2024: $301.70
5 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
Other ophthalmology physician records in Massachusetts
- Mark Abelson, M.D.Andover, MA1811990682
- Inas Aboobakar, M.D.Boston, MA1760846265
- Omar Abuqamar, M.D., M.M.S.C.,Burlington, MA1437640414
- Alessandro Adad Jammal, MD, PHDBoston, MA1518725480
- David Agahigian, M.D.Springfield, MA1205822293
- Kanika Agarwal, MDBoston, MA1245692433
- Muna Ahmad, M.D.Leominster, MA1588830145
- Lloyd Aiello, M.D., PH.D.Boston, MA1588622104
- Motasem Al-Latayfeh, M.D.Boston, MA1184855710
- Pierre Alfred, MDAthol, MA1912998501
Common questions
What is Peter T. Zacharia, MD's NPI number?
Peter T. Zacharia, MD's National Provider Identifier (NPI) is 1689666745, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peter T. Zacharia, MD located?
The NPPES record lists a practice address at 33 Lancaster St, Worcester, MA, 01609. Phone: (508) 791-8484. Providers update this record themselves, so call before visiting.
How can I verify Peter T. Zacharia, MD's license?
NPPES lists Massachusetts license number 75948, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter T. Zacharia, MD prescribe under Medicare Part D?
In 2024, Peter T. Zacharia, MD had 6,293 Medicare Part D claims for 865 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Peter T. Zacharia, MD's MIPS final score?
The 2023 MIPS final score is 97 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.