What is James Johnston's NPI number?

James Johnston's National Provider Identifier (NPI) is 1659371094, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Johnston's specialty?

James Johnston is listed in the NPPES registry with a primary specialty of Ocularist (Eye and Vision Services Providers).

Where is James Johnston located?

James Johnston's practice location on file with NPPES is 450 Saint John Rd, Michigan City, IN 46360-7354.

What is James Johnston's phone number?

The practice phone number listed in the NPPES registry for James Johnston is (219) 874-7236.

Is James Johnston's NPI active?

Yes — James Johnston's NPI (1659371094) is active in the NPPES registry as of the last update on 2025-09-11.

IndividualActive

James Johnston

NPI 1659371094 · Ocularist · Michigan City, IN

James Johnston is a Ocularist provider in Michigan City, IN (NPI 1659371094).

Provider details

NPI number: 1659371094
Entity type: Individual
Primary specialty: OcularistEye and Vision Services Providers
Sex: Male
Sole proprietor: No
License: 5001000030 (MI)

Specialties & taxonomies

OcularistPrimary156FX1700XLicense DEPARTMENT OF LABOR (IL)
Eye and Vision Services Providers
Ocularist156FX1700XLicense 5001000030 (MI)
Eye and Vision Services Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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

450 Saint John Rd

Ste 404

Michigan City, IN 46360-7354

Phone: (219) 874-7236

Street-level locationGet directions

Mailing address