Douglas Christian Johnson, PH.D.
Clinical Neuropsychologist · La Jolla, CA
Douglas Christian Johnson, PH.D. is a clinical neuropsychologist with a practice address in La Jolla, California, and NPI 1770788697, issued on Jun 20, 2007. Check the license (California PSY21975, 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
- Douglas Christian Johnson
- Credential
- PH.D.
- Primary taxonomy
- Clinical Neuropsychologist 103G00000X
- License number
- PSY21975 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8939 Villa LA Jolla Dr, La Jolla, CA 92037
- Phone
- (858) 999-4287
- Enumerated
- Jun 20, 2007
- Record last updated
- Feb 6, 2013 (not updated in 13 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 8939 Villa LA Jolla Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Brown, MDInternal Medicine Physician1942313200
- Melinda Chen, MDInternal Medicine Physician1942396197
- Carmella Fitzpatrick, LVNLicensed Vocational Nurse1477796894
- Courtney Hanson, MDInternal Medicine Physician1609004191
- Heather Hofflich, DOEndocrinology, Diabetes & Metabolism Physician1598962102
- Renu Singh, PHARM.D.Pharmacotherapy Pharmacist1124339627
Verify Douglas Christian 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 PSY21975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Clinical Neuropsychologist providers in California
There are 743 clinical neuropsychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other clinical neuropsychologist records in California
- Richard Abbey, PH.D.Palo Alto, CA1730377649
- Jennifer Acogny, PSY.D.Beverly Hills, CA1841707643
- Jennifer Adler, PHDSan Diego, CA1164314753
- Kristina Agbayani, PH.D.Palo Alto, CA1174974125
- Maral AghvinianLos Angeles, CA1588545685
- Cynthia Aguilar, PSY.DLos Angeles, CA1114474699
- Charles AhernCarmel, CA1083336200
- Natacha Akshoomoff, PH.D.San Diego, CA1740315043
- Lori Alasantro, PHDCarlsbad, CA1669807111
- Kimberly Alfano, PHDSanta Barbara, CA1326068115
Common questions
What is Douglas Christian Johnson, PH.D.'s NPI number?
Douglas Christian Johnson, PH.D.'s National Provider Identifier (NPI) is 1770788697, issued on Jun 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Christian Johnson, PH.D. located?
The NPPES record lists a practice address at 8939 Villa LA Jolla Dr, La Jolla, CA, 92037. Phone: (858) 999-4287. Providers update this record themselves, so call before visiting.
How can I verify Douglas Christian Johnson, PH.D.'s license?
NPPES lists California license number PSY21975, 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.