Derek Harry Loewy, PHD
Clinical Psychologist · San Diego, CA
Derek Harry Loewy, PHD is a clinical psychologist with a practice address in San Diego, California, and NPI 1457635963, issued on Oct 3, 2011. Check the license (California PSY17319, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Derek Harry Loewy
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY17319 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10052 Mesa Ridge CT, San Diego, CA 92121
- Phone
- (858) 657-0550
- Enumerated
- Oct 3, 2011
- Record last updated
- Oct 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (858) 202-9568
- Medicare enrollment
- Enrolled (PECOS I20120522001262); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 10052 Mesa Ridge CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Renata Shafor, M.D.Sleep Medicine (Internal Medicine) Physician1952441396
Verify Derek Harry Loewy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY17319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Harry Loewy among 12,647 clinical psychologist records in California
Derek Harry Loewy, 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. Its NPI, issued in 2011, is newer than 59% of them.
- NPI issued2011 · 59% of these records are older, 37% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1996 · median 2006 among the 2,424 with a school on file
- Record last updated2011 · 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).
983 clinical psychologist records list a practice address in San Diego
They are 983 of the 52,937 NPPES records with a practice address in San Diego, and 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in San Diego → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Christy Bantugan-Bohan, PH.D.San Diego, CA 921211225154222
- Christopher Carstens, PH.D.San Diego, CA 921211215924014
- Sopagna Eap-Braje, PHDSan Diego, CA 921211639380215
- Marian Edelbrock, PHDSan Diego, CA 921211255434999
- Arthur Farkas, PH.D.San Diego, CA 921211912192469
- Iren Fellegvari, PSY.D, MFT, CADCII,San Diego, CA 921211568538825
- Patricia Heras, PH.D.San Diego, CA 921211639238876
- Abraham Loebenstein, PH.D.San Diego, CA 921211013044734
Common questions
What is Derek Harry Loewy, PHD's NPI number?
Derek Harry Loewy, PHD's National Provider Identifier (NPI) is 1457635963, issued on Oct 3, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Derek Harry Loewy, PHD located?
The NPPES record lists a practice address at 10052 Mesa Ridge CT, San Diego, CA, 92121. Phone: (858) 657-0550. Providers update this record themselves, so call before visiting.
How can I verify Derek Harry Loewy, PHD's license?
NPPES lists California license number PSY17319, 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. Medicare files from data.cms.gov. 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.