OrganizationActive
Gruen Ross Optika, LLC
NPI 1639325921 · Optometrist · Greenwich, CT
Gruen Ross Optika, LLC is a Optometrist organization in Greenwich, CT (NPI 1639325921).
Provider details
- NPI number
- 1639325921
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Jon Gruen, President/Ceo(212) 875-1801
- License
- TUV0069621 (NY)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
229 Greenwich Ave
Greenwich, CT 06830-6582
Phone: (212) 862-9441
Street-level locationGet directions
Mailing address
180 South St
New Providence, NJ 07974-1991
Registry dates
- Enumerated
- 2008-08-18
- Last updated
- 2008-08-18
Frequently asked questions
- What is Gruen Ross Optika, LLC's NPI number?
- Gruen Ross Optika, LLC's National Provider Identifier (NPI) is 1639325921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gruen Ross Optika, LLC?
- Gruen Ross Optika, LLC is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Gruen Ross Optika, LLC located?
- Gruen Ross Optika, LLC's practice location on file with NPPES is 229 Greenwich Ave, Greenwich, CT 06830-6582.
- What is Gruen Ross Optika, LLC's phone number?
- The practice phone number listed in the NPPES registry for Gruen Ross Optika, LLC is (212) 862-9441.
- Who is the authorized official for Gruen Ross Optika, LLC?
- The authorized official listed on Gruen Ross Optika, LLC's NPPES record is Jon Gruen, President/Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gruen Ross Optika, LLC's NPI active?
- Yes — Gruen Ross Optika, LLC's NPI (1639325921) is active in the NPPES registry as of the last update on 2008-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.