Silvina Alejandra Irwin, PH.D.
Clinical Psychologist · Pasadena, CA
Silvina Alejandra Irwin, PH.D. is a clinical psychologist with a practice address in Pasadena, California, and NPI 1881817864, issued on Apr 10, 2007. Check the license (California 19710, 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
- Silvina Alejandra Irwin
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 19710 CA
Self-reported in NPPES; status is on the state search - Practice location
- 95 N Marengo Ave, Pasadena, CA 91101
- Phone
- (626) 399-4013
- Enumerated
- Apr 10, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (626) 585-0440
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 95 N Marengo Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Silvina Alejandra Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 19710Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Silvina Alejandra Irwin among 12,647 clinical psychologist records in California
Silvina Alejandra Irwin, PH.D. 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).
293 clinical psychologist records list a practice address in Pasadena
They are 293 of the 10,525 NPPES records with a practice address in Pasadena, 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 Pasadena → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Charles Barr, PHDPasadena, CA 911011467469353
- Gail Blesi, PH.D.Pasadena, CA 911011417031626
- Deborah Buckwalter, PH.D.Pasadena, CA 911011154428241
- Barbara Eurichrascoe, PHDPasadena, CA 911011558314443
- Mary Hayden, PH.D.Pasadena, CA 911011669542585
- Bruce Hirsch, PH.D.Pasadena, CA 911011104805852
- Cynthia Jackson, PHDPasadena, CA 911011235185653
- Robin Kietzman, PHDPasadena, CA 911011508972753
Common questions
What is Silvina Alejandra Irwin, PH.D.'s NPI number?
Silvina Alejandra Irwin, PH.D.'s National Provider Identifier (NPI) is 1881817864, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Silvina Alejandra Irwin, PH.D. located?
The NPPES record lists a practice address at 95 N Marengo Ave, Pasadena, CA, 91101. Phone: (626) 399-4013. Providers update this record themselves, so call before visiting.
How can I verify Silvina Alejandra Irwin, PH.D.'s license?
NPPES lists California license number 19710, 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.