Mark Lloyd Streets, PHD
Clinical Psychologist · Chico, CA
Mark Lloyd Streets, PHD is a clinical psychologist with a practice address in Chico, California, and NPI 1164587705, issued on Dec 26, 2006. Check the license (California PSY11878, 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
- Mark Lloyd Streets
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY11878 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1660 Humboldt RD, Chico, CA 95928
- Phone
- (530) 891-6521
- Enumerated
- Dec 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 1660 Humboldt RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Lloyd Streets in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY11878Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Lloyd Streets among 12,647 clinical psychologist records in California
Mark Lloyd Streets, PHD is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in California
There are 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Chico → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Maija Clarke, PSY.D.Chico, CA 959281689723892
- Henry Ganzler, PH.D.Chico, CA 959281245382902
- Sidney Ganzler, PHDChico, CA 959281619091907
- Rusty Gilmore, PH.D.Chico, CA 959281659576122
- Steven Koch, PH.D.Chico, CA 959281720279037
- Lana McKnight, PH.D.Chico, CA 959281043443138
- Marvin Megibow, PHDChico, CA 959281255356382
- Joel Minden, PH.D.Chico, CA 959281770645673
Common questions
What is Mark Lloyd Streets, PHD's NPI number?
Mark Lloyd Streets, PHD's National Provider Identifier (NPI) is 1164587705, issued on Dec 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lloyd Streets, PHD located?
The NPPES record lists a practice address at 1660 Humboldt RD, Chico, CA, 95928. Phone: (530) 891-6521. Providers update this record themselves, so call before visiting.
How can I verify Mark Lloyd Streets, PHD's license?
NPPES lists California license number PSY11878, 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.