Maria I. Diaz, OD
Optometrist · East Haven, CT
Maria I. Diaz, OD is an optometrist with a practice address in East Haven, Connecticut, and NPI 1265408371, issued on Feb 28, 2006. Check the license (Connecticut 2426, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria I. Diaz
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2426 CT
Self-reported in NPPES; status is on the state search - Practice location
- 64 Thompson St, East Haven, CT 06513
- Phone
- (203) 469-1012
- Enumerated
- Feb 28, 2006
- Record last updated
- Oct 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (203) 467-1369
- Medicaid ID
- 004173598 CT
- Medicare enrollment
- Enrolled (PECOS I20060508000468); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 1996
- Entity
- Type 1 · individual
8 nearest optometrist records → All 675 in Connecticut → Look up another NPI →
Also registered at 64 Thompson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carmen Betancourt, LCSWClinical Social Worker1891298253
- Cheyenne McElhiney, LMHC/PMental Health Counselor1194327395
- Tara PaineClinical Social Worker1134408610
- Corrine PanagosRegistered Nurse1952894396
- Ellen RiccardiProfessional Counselor1538634605
Verify Maria I. Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 2426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average optometrist in 2024
393 Medicare Part D claims for 150 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Latanoprost87 claims
- Restasis55 claims
- Xiidra34 claims
- Dorzolamide-Timolol22 claims
- Lumigan20 claims
- Tobramycin-Dexamethasone19 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.
Industry payments in 2024: $372.21
13 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 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.
Bills Medicare through one group practice
- Connecticut Vision Center, LLCEast Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria I. Diaz among 675 optometrist records in Connecticut
Maria I. Diaz, OD is one of 675 optometrist records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 57% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2008 among the 447 with a school on file
- Record last updated2012 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 optometrist records list a practice address in East Haven
They are 4 of the 239 NPPES records with a practice address in East Haven, and 675 optometrist records in Connecticut.
All 675 in Connecticut → Every provider in East Haven → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Lindsay LelasEast Haven, CT 065131790531283
- Karlee Muller, ODEast Haven, CT 065131255838991
- Thomas Conrod, O.D.Hamden, CT 065141871621193
- Robert Demayo, DOHamden, CT 065141376066019
- Marc Denigris, O.D.East Haven, CT 065121487879656
- Louis Hochberg, O.D.Hamden, CT 065141851315170
- Harvard Sylvan, ODHamden, CT 065141578910816
- James Weston, O.D.Hamden, CT 065141386772606
Common questions
What is Maria I. Diaz, OD's NPI number?
Maria I. Diaz, OD's National Provider Identifier (NPI) is 1265408371, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria I. Diaz, OD located?
The NPPES record lists a practice address at 64 Thompson St, East Haven, CT, 06513. Phone: (203) 469-1012. Providers update this record themselves, so call before visiting.
How can I verify Maria I. Diaz, OD's license?
NPPES lists Connecticut license number 2426, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Maria I. Diaz, OD prescribe under Medicare Part D?
In 2024, Maria I. Diaz, OD had 393 Medicare Part D claims for 150 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
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.