NPPES file of Aug 9, 2026

Ian Joseph Wallace, PH.D.

Psychologist · Vallejo, CA

Ian Joseph Wallace, PH.D. is a psychologist with a practice address in Vallejo, California, and NPI 1013143262, issued on Jun 2, 2009. Check the license (California PSY# 23646, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013143262
Name
Ian Joseph Wallace
Credential
PH.D.
Primary taxonomy
Psychologist 103T00000X
License number
PSY# 23646 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Maritime Academy Dr, Vallejo, CA 94590
Phone
(707) 654-1170
Enumerated
Jun 2, 2009
Record last updated
Jul 23, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(707) 654-1171
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 200 Maritime Academy Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cathleen Coulman, M.D.Internal Medicine Physician1689941171
  2. Christine Smith, NURSE PRACTITIONERFamily Nurse Practitioner1902029879

Verify Ian Joseph Wallace in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY# 23646
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Ian Joseph Wallace among 7,304 psychologist records in California

Ian Joseph Wallace, PH.D. is one of 7,304 psychologist records with a practice address in California. 6% 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 2009, is newer than 42% of them.

  • NPI issued2009 · 42% of these records are older, 54% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 14% of these records are
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in California

There are 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychologist records with the nearest ZIP codes

  1. Robert Cruz, PSYDVallejo, CA 945891013710029
  2. Patricia Dwyer, PHDVallejo, CA 945891073663936
  3. Daniella Halperin, PHDVallejo, CA 945891275733875
  4. Shasta Ihorn, PHDVallejo, CA 945891063824019
  5. Kristin Koperski, PSY.D.Vallejo, CA 945891164790432
  6. Meagan LaseckeVallejo, CA 945891942175864
  7. Andrea MaceVallejo, CA 945911427820323
  8. Lisa Nakata, PH.DVallejo, CA 945891306913769

Common questions

What is Ian Joseph Wallace, PH.D.'s NPI number?

Ian Joseph Wallace, PH.D.'s National Provider Identifier (NPI) is 1013143262, issued on Jun 2, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ian Joseph Wallace, PH.D. located?

The NPPES record lists a practice address at 200 Maritime Academy Dr, Vallejo, CA, 94590. Phone: (707) 654-1170. Providers update this record themselves, so call before visiting.

How can I verify Ian Joseph Wallace, PH.D.'s license?

NPPES lists California license number PSY# 23646, 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.