OrganizationActive
Dr. Mark Greenberg
NPI 1104005230 · Optometrist · Pearl River, NY
Dr. Mark Greenberg is a Optometrist organization in Pearl River, NY (NPI 1104005230).
Provider details
- NPI number
- 1104005230
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Mark Greenberg, Owner(845) 735-5757
- License
- 3359 (NY)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
275 N Middletown Rd
Pearl River, NY 10965-1188
Phone: (845) 735-5757
Street-level locationGet directions
Mailing address
275 N Middletown Rd
Pearl River, NY 10965-1188
Registry dates
- Enumerated
- 2007-10-25
- Last updated
- 2007-10-25
Frequently asked questions
- What is Dr. Mark Greenberg's NPI number?
- Dr. Mark Greenberg's National Provider Identifier (NPI) is 1104005230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Mark Greenberg?
- Dr. Mark Greenberg is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Dr. Mark Greenberg located?
- Dr. Mark Greenberg's practice location on file with NPPES is 275 N Middletown Rd, Pearl River, NY 10965-1188.
- What is Dr. Mark Greenberg's phone number?
- The practice phone number listed in the NPPES registry for Dr. Mark Greenberg is (845) 735-5757.
- Who is the authorized official for Dr. Mark Greenberg?
- The authorized official listed on Dr. Mark Greenberg's NPPES record is Mark Greenberg, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Mark Greenberg's NPI active?
- Yes — Dr. Mark Greenberg's NPI (1104005230) is active in the NPPES registry as of the last update on 2007-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.