What is Darryl Johnson's NPI number?

Darryl Johnson's National Provider Identifier (NPI) is 1003704040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Darryl Johnson's specialty?

Darryl Johnson is listed in the NPPES registry with a primary specialty of Peer Specialist (Other Service Providers).

Where is Darryl Johnson located?

Darryl Johnson's practice location on file with NPPES is 13095 Neptune Dr, San Leandro, CA 94577-3130.

What is Darryl Johnson's phone number?

The practice phone number listed in the NPPES registry for Darryl Johnson is (510) 300-3500.

Is Darryl Johnson's NPI active?

Yes — Darryl Johnson's NPI (1003704040) is active in the NPPES registry as of the last update on 2025-06-26.

IndividualActive

Darryl Johnson

NPI 1003704040 · Peer Specialist · San Leandro, CA

Darryl Johnson is a Peer Specialist provider in San Leandro, CA (NPI 1003704040).

Provider details

NPI number: 1003704040
Entity type: Individual
Primary specialty: Peer SpecialistOther Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Peer SpecialistPrimary175T00000X
Other Service Providers

Profile Score

Basic profile(48/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

13095 Neptune Dr

San Leandro, CA 94577-3130

Phone: (510) 300-3500

Street-level locationGet directions

More CA providers

Mailing address