Ernest Clifton Leonard, PHD
Clinical Psychologist · Crescent City, CA
Ernest Clifton Leonard, PHD is a clinical psychologist with a practice address in Crescent City, California, and NPI 1447451083, issued on May 30, 2007. Check the license (California PSY7242, 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
- Ernest Clifton Leonard
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY7242 CA
Self-reported in NPPES; status is on the state search - Practice location
- Pelican Bay State Prison, Crescent City, CA 95532
- Phone
- (707) 465-1000
- Enumerated
- May 30, 2007
- 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 →
Verify Ernest Clifton Leonard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY7242Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ernest Clifton Leonard among 12,647 clinical psychologist records in California
Ernest Clifton Leonard, 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 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 57% 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).
20 clinical psychologist records list a practice address in Crescent City
They are 20 of the 458 NPPES records with a practice address in Crescent City, and 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 Crescent City → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- David Archambault, PHDCrescent City, CA 955321851501167
- Elizabeth Chernow, PH.D.Crescent City, CA 955321396075693
- Timothy Devereaux, PSY.DCrescent City, CA 955321497922967
- Christy Emrich, PSYDCrescent City, CA 955321235867243
- Callista Frye, PSYDCrescent City, CA 955321306032982
- Robert Levine, PHDCrescent City, CA 955321073724456
- Lorama Maloen, PH.D.Crescent City, CA 955321942410089
- Masoumeh Razavi, PHDCrescent City, CA 955321023219128
Common questions
What is Ernest Clifton Leonard, PHD's NPI number?
Ernest Clifton Leonard, PHD's National Provider Identifier (NPI) is 1447451083, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ernest Clifton Leonard, PHD located?
The NPPES record lists a practice address at Pelican Bay State Prison, Crescent City, CA, 95532. Phone: (707) 465-1000. Providers update this record themselves, so call before visiting.
How can I verify Ernest Clifton Leonard, PHD's license?
NPPES lists California license number PSY7242, 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.