Maria Diaz, OD
NPI 1265408371 · Optometrist · East Haven, CT
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Diaz, OD is a Optometrist provider in East Haven, CT (NPI 1265408371).
Provider details
- NPI number
- 1265408371
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2426 (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
20 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
1,049 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 Complete Exam of Visual System92014 | 215 | $132 |
| Photography of the Retina92250 | 173 | $38 |
| Established Patient Problem Focused Exam of Visual System92012 | 171 | $93 |
| Exam of Visual Field With Extended Testing92083 | 107 | $67 |
| Imaging of Optic Nerve92133 | 103 | $35 |
| Imaging of Retina92134 | 80 | $42 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 87 | 23 |
| Cyclosporinebrand: Restasis | 55 | 18 |
| Lifitegrastbrand: Xiidra | 34 | 15 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 22 | — |
| Bimatoprostbrand: Lumigan | 20 | — |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 19 | 18 |
| Doxycycline Monohydrate | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$372 across 13 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
- 2006-02-28
- Last updated
- 2012-10-02
Frequently asked questions
- What is Maria Diaz's NPI number?
- Maria Diaz's National Provider Identifier (NPI) is 1265408371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Diaz's specialty?
- Maria Diaz is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Maria Diaz located?
- Maria Diaz's practice location on file with NPPES is 64 Thompson St, East Haven, CT 06513-5707.
- What is Maria Diaz's phone number?
- The practice phone number listed in the NPPES registry for Maria Diaz is (203) 469-1012.
- Does Maria Diaz accept Medicare?
- Maria Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Diaz's NPI active?
- Yes — Maria Diaz's NPI (1265408371) is active in the NPPES registry as of the last update on 2012-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.