Roy W. Johnson, PHD
Psychologist · Vacaville, CA
Roy W. Johnson, PHD is a psychologist with a practice address in Vacaville, California, and NPI 1932448867, issued on Feb 13, 2013. Check the license (California PSY17332, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Roy W. Johnson
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- License number
- PSY17332 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 California Dr., Vacaville, CA 95656
- Phone
- (707) 448-6841
- Enumerated
- Feb 13, 2013
- Record last updated
- Feb 13, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1600 California Dr.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Bugas, PHDClinical Psychologist1811285356
- Faafetai Faaleava, PSY.D.Clinical Psychologist1265090070
- Tanya Greenfield, PSY.D.Clinical Psychologist1336301340
- Anjalee Greenwood, PSY.D., BCBAPsychologist1295122877
- Roserin Jothaprasert, PSY DPsychologist1811432297
- Natsuko LewisStudent in an Organized Health Care Education/Training Program1558098848
Verify Roy W. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY17332Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23 psychologist records list a practice address in Vacaville
They are 23 of the 1,903 NPPES records with a practice address in Vacaville, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 23 in Vacaville → All 7,304 in California → Every provider in Vacaville →
Other psychologist records in California
- Alice Abarbanel, PH.D.Albany, CA1598095002
- Michael Abbott, PSYDModesto, CA1346498151
- Riley AbelesLos Angeles, CA1841861945
- Jenna Abell, PSYDLos Angeles, CA1073743969
- Sheri Abercrombie, PSY.D.San Diego, CA1932292422
- Tseday Aberra, PSY.D.Corona, CA1104026517
- Elham Abouhamzeh, PSY.DIrvine, CA1386092880
- Lilit Abraamyan-ChaidezBurbank, CA1710433289
- Mackenzie Abraham, PHDRedondo Beach, CA1881053833
- Sandra Abraham, PSYDSanta Fe Springs, CA1427467851
Common questions
What is Roy W. Johnson, PHD's NPI number?
Roy W. Johnson, PHD's National Provider Identifier (NPI) is 1932448867, issued on Feb 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Roy W. Johnson, PHD located?
The NPPES record lists a practice address at 1600 California Dr., Vacaville, CA, 95656. Phone: (707) 448-6841. Providers update this record themselves, so call before visiting.
How can I verify Roy W. Johnson, PHD's license?
NPPES lists California license number PSY17332, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.