Provider Profile
Maria I. Diaz, OD is an optometrist based in East Haven, CT. Maria is a 1996 graduate of New England College of Optometry. Medicare claims data shows Maria provided 1,049 services to 911 patients. The services billed most often include established patient complete exam of visual system, photography of the retina, and established patient problem focused exam of visual system.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
64 THOMPSON ST SUITE B104
East Haven, CT 06513
Within Optometry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Contact lens issues
Cornea conditions
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
Eye infections
Eye inflammation
Eye injuries
Eye irritation
Eye surface issues
Eyelid conditions
Eyelid issues
Pediatric eye conditions
Pupil issues
Tear duct issues
Vision changes
Most searched procedures
Contact lens exams
Dry eye treatments
Examinations
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
Imaging & tests
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
1,049 services · 911 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
24 | More often than most peers in Optometrist |
| Established patient complete exam of visual system | Treatment | 92014 |
215 | More often than most peers in Optometrist |
| Photography of the retina | Treatment | 92250 |
173 | More often than most peers in Optometrist |
| Established patient problem focused exam of visual system | Treatment | 92012 |
171 | More often than most peers in Optometrist |
| Exam of visual field with extended testing | Treatment | 92083 |
107 | More often than most peers in Optometrist |
| Imaging of optic nerve | Treatment | 92133 |
103 | More often than most peers in Optometrist |
| Imaging of retina | Treatment | 92134 |
80 | More often than most peers in Optometrist |
| New patient complete exam of visual system | Treatment | 92004 |
45 | More often than most peers in Optometrist |
| Imaging of front third of eye | Treatment | 92132 |
18 | As often as other peers in Optometrist |
| Exam to measure eye deviation and range of motion | Treatment | 92060 |
18 | Less often than most peers in Optometrist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Diaz is an optometrist in East Haven, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Diaz is listed at 64 Thompson St Suite B104, East Haven, CT 06513. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 469-1012. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Diaz's National Provider Identifier is 1265408371. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Diaz attended New England College of Optometry, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
Dr. Diaz has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Diaz performs imaging including ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diaz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.