Jack Mermelstein, OD
NPI 1184643843 · Optometrist · Fair Lawn, NJ
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Mermelstein, OD is a Optometrist provider in Fair Lawn, NJ (NPI 1184643843).
Provider details
- NPI number
- 1184643843
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 3650 (NJ)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2006-07-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jack Mermelstein's NPI number?
- Jack Mermelstein's National Provider Identifier (NPI) is 1184643843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Mermelstein's specialty?
- Jack Mermelstein is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Jack Mermelstein located?
- Jack Mermelstein's practice location on file with NPPES is 4-14 Saddle River Rd, Fair Lawn, NJ 07410-5632.
- What is Jack Mermelstein's phone number?
- The practice phone number listed in the NPPES registry for Jack Mermelstein is (201) 797-2747.
- Does Jack Mermelstein accept Medicare?
- Jack Mermelstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Mermelstein's NPI active?
- Yes — Jack Mermelstein's NPI (1184643843) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.