Peter Zacharia, MD
NPI 1689666745 · Ophthalmology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Zacharia, MD is a Ophthalmology Physician provider in Worcester, MA (NPI 1689666745).
Provider details
- NPI number
- 1689666745
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 75948 (MA)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,313 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,031 | $93 |
| Exam of Visual Field With Extended Testing92083 | 455 | $65 |
| Imaging of Optic Nerve92133 | 430 | $38 |
| Established Patient Complete Exam of Visual System92014 | 414 | $131 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 248 | $130 |
| Photography of the Retina92250 | 219 | $38 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,620 | 541 |
| Brimonidine Tartrate | 763 | 245 |
| Timolol Maleate | 713 | 237 |
| Dorzolamide Hcl | 624 | 181 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 580 | 152 |
| Prednisolone Acetate | 312 | 189 |
| Pilocarpine Hcl | 295 | 96 |
| Ketorolac Tromethamine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$302 across 5 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
Additional practice locations (1)
- 281 Lincoln StreetWorcester, MA 01605-2138Phone: (508) 334-6855Fax: (508) 334-6795
Registry dates
- Enumerated
- 2005-08-16
- Last updated
- 2023-12-01
- Certified
- 2023-12-01
Frequently asked questions
- What is Peter Zacharia's NPI number?
- Peter Zacharia's National Provider Identifier (NPI) is 1689666745, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Zacharia's specialty?
- Peter Zacharia is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Zacharia located?
- Peter Zacharia's practice location on file with NPPES is 33 Lancaster St, Worcester, MA 01609-2615.
- What is Peter Zacharia's phone number?
- The practice phone number listed in the NPPES registry for Peter Zacharia is (508) 791-8484.
- Does Peter Zacharia accept Medicare?
- Peter Zacharia is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Zacharia's NPI active?
- Yes — Peter Zacharia's NPI (1689666745) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.