Helen Zervas, OD
NPI 1831266576 · Optometrist · Bristol, CT
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Zervas, OD is a Optometrist provider in Bristol, CT (NPI 1831266576).
Provider details
- NPI number
- 1831266576
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2358 (CT)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
285 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) |
|---|---|---|
| Photography of the Retina92250 | 100 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $95 |
| Established Patient Complete Exam of Visual System92014 | 62 | $132 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $134 |
| Exam of Visual Field With Extended Testing92083 | 16 | $67 |
| Imaging of Retina92134 | 12 | $39 |
Typical Medicare-allowed amounts for these services range $39–$134 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 101 | 25 |
| Erythromycin Basebrand: Erythromycin | 83 | 50 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 46 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 45 | 11 |
| Travoprost | 36 | — |
| Cyclosporinebrand: Cequa | 29 | — |
| Cyclosporinebrand: Restasis | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$500 across 19 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
- 2006-11-29
- Last updated
- 2007-07-09
Frequently asked questions
- What is Helen Zervas's NPI number?
- Helen Zervas's National Provider Identifier (NPI) is 1831266576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Zervas's specialty?
- Helen Zervas is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Helen Zervas located?
- Helen Zervas's practice location on file with NPPES is 780 King St, Bristol, CT 06010-4480.
- What is Helen Zervas's phone number?
- The practice phone number listed in the NPPES registry for Helen Zervas is (860) 584-5528.
- Does Helen Zervas accept Medicare?
- Helen Zervas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Zervas's NPI active?
- Yes — Helen Zervas's NPI (1831266576) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.