Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John W Johnson, PHD

Individual provider Clinical Psychologist · NPI 1548387517

John W Johnson, PHD is a Clinical Psychologist in Pasadena, California. Qualified in 2001, 25 years ago. Practices as a sole proprietor, works from 5 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Licensed in
CA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

3827 E Colorado Blvd
Pasadena, CA 91107-3935
Phone: (626) 644-7944
Fax: (626) 463-1461
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 250 W 1st St Ste 242, Claremont, CA 91711-4742 — (626) 644-7944
  • 250 W 1st St Ste 242, Claremont, CA 91711-4742 — (626) 644-7944
  • 1662 Plum Ln Ste 102, Redlands, CA 92374-4595 — (626) 644-7944
  • 1662 Plum Ln Ste 102, Redlands, CA 92374-4595 — (626) 644-7944

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY19013 (CA)

Record details

NPI number1548387517
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 23, 2007
Last updated in NPPESDecember 8, 2020
Certification dateDecember 8, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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