What is John Johnson's NPI number?

John Johnson's National Provider Identifier (NPI) is 1548387517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Johnson's specialty?

John Johnson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is John Johnson located?

John Johnson's practice location on file with NPPES is 3827 E Colorado Blvd, Pasadena, CA 91107-3935.

What is John Johnson's phone number?

The practice phone number listed in the NPPES registry for John Johnson is (626) 644-7944.

Does John Johnson accept Medicare?

John Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is John Johnson's NPI active?

Yes — John Johnson's NPI (1548387517) is active in the NPPES registry as of the last update on 2020-12-08.

IndividualActiveAccepts Medicare

John Johnson, PH.D.

NPI 1548387517 · Clinical Psychologist · Pasadena, CA

Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

John Johnson, PH.D. is a Clinical Psychologist provider in Pasadena, CA (NPI 1548387517).

Provider details

NPI number: 1548387517
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: PSY19013 (CA)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense PSY19013 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(99/100 index)

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
5 documented practice locations

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

3827 E Colorado Blvd

Pasadena, CA 91107-3935

Phone: (626) 644-7944

Fax: (626) 463-1461

Street-level locationGet directions

More CA providers

Mailing address

7231 Boulder Ave # 128

Highland, CA 92346-3313

Additional practice locations (4)

250 W 1st St Ste 242
Claremont, CA 91711-4742
Phone: (626) 644-7944
Fax: (626) 463-1461
250 W 1st St Ste 242
Claremont, CA 91711-4742
Phone: (626) 644-7944
Fax: (626) 463-1461
1662 Plum Ln Ste 102
Redlands, CA 92374-4595
Phone: (626) 644-7944
Fax: (626) 463-1461
1662 Plum Ln Ste 102
Redlands, CA 92374-4595
Phone: (626) 644-7944
Fax: (626) 463-1461

Enumerated: 2007-03-23
Last updated: 2020-12-08
Certified: 2020-12-08

Frequently asked questions

What is John Johnson's NPI number?: John Johnson's National Provider Identifier (NPI) is 1548387517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is John Johnson's specialty?: John Johnson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
Where is John Johnson located?: John Johnson's practice location on file with NPPES is 3827 E Colorado Blvd, Pasadena, CA 91107-3935.
What is John Johnson's phone number?: The practice phone number listed in the NPPES registry for John Johnson is (626) 644-7944.
Does John Johnson accept Medicare?: John Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is John Johnson's NPI active?: Yes — John Johnson's NPI (1548387517) is active in the NPPES registry as of the last update on 2020-12-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.