Diamond Vision, Greenwich: NPI Registry Record and Eye Exam Cost Context
What the registry record says
- NPI number
- 1346279007
- Legal business name
- Greenwich Eye Center
- Registered trading name
- Diamond Vision
- Primary registered specialty
- Ophthalmology (207W00000X)
- Other registered specialties
- Optometrist, Corneal and Contact Management
- Practice location
- 41 W Putnam Ave
Greenwich, CT 06830-5300 - Phone on the record
- (203) 869-2255
- NPI issued
- July 2, 2006
- Record last updated by the practice
- September 11, 2025
- Registry status
- NPI registry record, active as reported by CMS August 2026
- Metro area
- Bridgeport-Stamford-Danbury, CT
- Location precision
- Street address matched by the US Census geocoder
Reading this record
The practice bills under the legal name Greenwich Eye Center and registered Diamond Vision as its trading name, so an insurance statement may show a name that does not match the sign on the door. Beyond the primary code the record carries Optometrist, Corneal and Contact Management, which is the registry's own signal that the practice covers more than routine work. The entry was refreshed in September 2025, putting it among the 25 of 148 Bridgeport-Stamford-Danbury records updated in 2024 or later, so the contact details are more likely to be current than most of this metro.
For local context: Greenwich holds 11 registered eye care practices in this snapshot, 6 of them optometry and 5 ophthalmology, in ZIP codes including 06830. 1 of them took an NPI before this practice did. The closest is Myeyedr. in Greenwich, 0.1 miles away.
None of this is a licensing check. CMS issues an NPI so a provider can be identified in billing transactions, and states plainly that issuance does not ensure or validate that the holder is licensed or credentialed. The Connecticut boards hold the licensing record, and the practice itself is the only source for what it charges today.
Nearest registered practices
1,236 other registered eye care practices sit within 25 miles of this address, a radius that does not stop at the metro boundary. Inside the Bridgeport-Stamford-Danbury metro itself there are 148, 10 of them elsewhere in Greenwich. The closest 5 are below, measured straight line between registered addresses.
| Practice | City | Registered as | Distance | Phone on record |
|---|---|---|---|---|
| Myeyedr. | Greenwich | Optometry | 0.1 mi | (203) 661-2020 |
| Trapp Optical | Greenwich | Optometry | 0.1 mi | (203) 552-1072 |
| Greenwich Ophthalmology Assoc | Greenwich | Ophthalmology | 0.1 mi | (203) 869-3082 |
| Vision Consultants of Greenwich | Greenwich | Optometry | 0.2 mi | (203) 661-7711 |
| Gruen Ross Optika, LLC | Greenwich | Optometry | 0.2 mi | (212) 862-9441 |
Distances are straight line between registered practice locations, not driving distance. Records placed at a ZIP centroid rather than a matched street address are excluded from this comparison.
What to expect to pay at an ophthalmology practice like this
The NPI registry holds no prices, so nothing here is a quote from Diamond Vision. Based on this site's own price research, an ophthalmology practice typically charges $150 to $300 or more for an exam without insurance, against a national average of about $136 and roughly $25 once a vision plan pays its share.
Ophthalmology visits are usually medical rather than routine, which changes who pays: medical insurance and Medicare Part B cover a medically necessary exam, while a routine refraction for glasses is normally not covered. Ask whether the visit will be billed as medical or routine before you book, and compare with the 102 optometry practices on the Bridgeport-Stamford-Danbury page if you only need a prescription.