What is Carl Johnson's NPI number?

Carl Johnson's National Provider Identifier (NPI) is 1750077855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Carl Johnson's specialty?

Carl Johnson is listed in the NPPES registry with a primary specialty of Research Study Specialist (Other Service Providers).

Where is Carl Johnson located?

Carl Johnson's practice location on file with NPPES is 175 E 8th St Rm 106, Claremont, CA 91711-3956.

What is Carl Johnson's phone number?

The practice phone number listed in the NPPES registry for Carl Johnson is (760) 851-5080.

Is Carl Johnson's NPI active?

Yes — Carl Johnson's NPI (1750077855) is active in the NPPES registry as of the last update on 2023-04-12.

IndividualActive

Carl Johnson

NPI 1750077855 · Research Study Specialist · Claremont, CA

Carl Johnson is a Research Study Specialist provider in Claremont, CA (NPI 1750077855).

Provider details

NPI number: 1750077855
Entity type: Individual
Primary specialty: Research Study SpecialistOther Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Research Study SpecialistPrimary1744R1102X
Other Service Providers

Profile Score

Established profile(52/100 index)

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

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
83% 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

175 E 8th St Rm 106

Claremont, CA 91711-3956

Phone: (760) 851-5080

Fax: (760) 851-5080

Street-level locationGet directions

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Mailing address